Hi Everyone,I really like to get feedback and comments on the subjects I talk about so please comment below with any questions, feedback or just say hi :) I would also ask if you find my content helpful please consider supporting the channel by subscribing. I also live stream every Sunday evening and it would fantastic to see you there Mads Live th-cam.com/channels/87tSDNQuryh06hCKALODwQ.html You can also support the channel so we can keep making content via links in some of my videos. Patreon supporters of my channel get exclusive access to my Discord Server, there I post info, behind the scenes content as well as help and support on the things i discuss on the channel, for more info check out www.patreon.com/MadRC
Hi! Tell me what is better if I fly every day: half charge after flight and then full charge before next flight, OR leave ~15% after flight and full charge before next flight, OR full charge after flight and leave it charged to next day? Of course take 30-60minutes between charging and fly
may i know where i can get official information that this battery will self discharge in 2 days as u said ? I cannot find function manual that set the discharge date as mavic pro
Love your comment 'link to overpriced fpv batteries'. Looking forward to hearing more about your builds and mods as pilots get more used to these quads.
I admit these are not cheap batteries however their features and build quality and smart features make these the best so far. In Australia these batteries cost AU$229 each or AU$429 for two including the battery charging hub which alone is AU$70, so the fly more kit is two batteries and one charging hub for AU$429. I purchased an extra four sets of the fly more kit so now have eight of these smart batteries - so all up around AU$1,840 for the four fly more on top of the AU$1,600 for the FPV combo kit which also includes one of these batteries. Never cheap out on batteries for these high power / high drain devices like drones as its simply not worth the risk personally or hardware wise.
I currently have an issue with one of my batteries I get the flashing red light on the drone and I think it has something to do with firmware as I had to update all of my 6 batteries. These batteries are very new and I see this battery has only had 2 flights. I can take off the drone won’t start the motors so I swap it with a different battery it works.
@@chappysktichen1624 from what I gather it happens when you charge the two batteries in the kit with the charging rail. I guess your supposed to charge it one by one on the charger it came with the first time. But nothing in the instructions say this as far as i know
No i have a mini and the DJI FPV drone And their batteries do not mix The fpv drone battery is bigger than the MAVIC mini itself. Lol But I don’t know what you would use that battery for. I guess you can sell it for maybe $75
Thanks for this! I have a single battery that is stuck in ‘internal communication error’ and will not charge or power the drone? Is this something you have seen before? Many thanks 🙏🏼
Hi! Tell me what is better if I fly every day: half charge after flight and then full charge before next flight, OR leave ~15% after flight and full charge before next flight, OR full charge after flight and leave it charged to next day? Of course take 30-60minutes between charging and fly
You've done a nice summary on the batteries. Several years ago, I got a phone call from an LG Chemical sales manager who worked at the headquarter. He asked me the possible use of Li-Polymer or Li-ion batteries for UPS system for broadcast transmission sites. I asked back to him 'What's the optimal operation temperature for Lithium-based batteries?" He answered me without hesitation. It's 25 degrees Celsius. Below/above 25 degrees, you could face the reduced battery capacity with no exception. You'd better change your comment with 15 degrees in the video.
this is an excerpt from a Sandia National Lab report, USA. Even the sealed lead acid batteries are designed to operate in 25 degrees Celsius with no exception. The optimum operating temperature for the lead-acid battery is 25°C (77°F). As a guideline, every 8°C (15°F) rise in temperature will cut the battery life in half. VRLA, which would last for 10 years at 25°C (77°F), will only be good for 5 years if operated at 33°C (95°F). Theoretically the same battery would endure a little more than one year at a desert temperature of 42°C (107°F). core.ac.uk/download/pdf/195152718.pdf pp.9
Age of battery electric car? I would rather laugh. My new LiFePo battery for my UX250h arrived a few days ago. 100Ah for auxiliary starter battery for a hybrid fossil fuel car. That's what it's for.
I think your misunderstanding what I am saying, Yes I am well as wear of 25c is the sweet spot but isdeal reange is 20-30C for Lipo packs, the DJI Smart battery will prevent take off below 15C, between 15-20C it will allow flight but you need to let it warm up and be easy on the cells. Yes in the ideal world you would not flt below 25C but that's not realistic and the batteries will self warm to 30C with use as well.
@@MadRC Sweet spot of the battery cells are relatively narrow for Litihim-based rechargable drone batteries. It would go much worse in less than 10 degrees Celsius. Warming up the battery by hovering could work but the overall life of the battery would go into vain. I didn't said that you are wrong. 25 degrees Celsius is mandatory for normal use of all the batteries. That's the limitation of early 21st century technology.
@@MadRC I made a long conversation with drone-related battery warmer developers here a few years ago. The battery should be kept cooled and warmed inside an explosion protection hard case with temperature sensors on the battery placements in it. That was a big problem at that time. No product meets the high standard by now.
Can I just add a note about cancelling the auto-discharge? Correct me if I'm wrong; assuming the lipo cells act like traditional lipos, keeping them fully charged for an extended period of time can, and likely will, cause the battery to swell and potentially ignite. Cancelling the auto-discharge is doing exactly this, so anything over a week or so isn't advised. If you're not going to be flying any time soon, just let the discharge happen and recharge when you're ready to fly.
great video! Something I read was that you should charge the batteries to around 70% and charge them to 100% on the day you fly them. Is that overkill ?
Hi Mad, thanks for an informative video! I assume most what you said is also valid for the Mini 2's batteries? One thing's is particular to the Mini 2 though, if you have the Fly More combo with the 3 bay charger be aware that it doubles as a power bank and can charge stuff off your flight batteries. But do NOT leave your batteries in the charger when long term storing them since they will not then self discharge!
Thank you for the great topic and video. I am not quite sure about the 3 days term, when after this time the automatic discharging is triggered. I am used to fly RC helicopters, where the LiPo battery sets are also very expensive and thats why I immediately charging my all batteries to the storage level (3,6-3,85V per cell) after getting home after flying, like it is recommended by LiPo and LiOn producers. Than the lifetime is greatly improved by getting at the storage level as soon as possible (not in days, but in minutes). I have asked my DJI dealer about the automatic discharging of DJI FPV batteries and he says, it is supposedly after 10 days for DJI FPV batteries. The mentioned 3 days are allegedly at e.g. DJI MAVIC , AIR batteries ... I had no time to check it yet, but it is no problem to find it out by measuring. Anyway, even the 3 days are very long time. If it should be 10 days, it is very bad for their lifetime. The same with charging - it should be done immediately before flying. It simply means, not to let run the chemical processses in batterries in fully charged state, when it is very strong and it shortens significantly the batteries life. And conversely, also not let them fully discharged. This little care is money saver, even it is sometimes a bit bothering.
Was flying it the other day and realized the battery showing 100 percent charge after a few minutes. Figured something must be wrong, i did get a message saying battery maintenance required. Do you happen to have a video showing how exactly you perform the battery maintenance? Thanks for all the info. I fly over water a lot and it's been a scary experience to see the battery percentage still at 100 percent after cruising it at 60 mph for a good mile.
Great as always!!!! The BEST!! Thank you so much on letting me know on what happens when I press the button to check battery level. I did not know that it resets countdown to discharge. Thank you so much! Keep the GREAT work up.
Hypothetically speaking if I were to strap an Insta360 to the bottom of the DJI FPV would the sensors detect it as an obstacle? Could it safely take of with an object hanging and potentially pivoting off the bottom?
After a flight session my batteries are at 20% (one led) after landing if I do not plan to fly the following days is it better to leave them like this or recharge them completely Thank's Nice vidéo!
How long after fully charging do they start automatically discharging? (That could be annoying if charged up for a day or 2 day trip and at the end of the day/ trip you want to fly and they've discharged).. is this info all relevant to the dji avata batteries too? Thanks
Great stuff. What’s the DJI Power supply voltage? I’m in the position of having the drone kit but no charger (it’s currently plugged into the vendors wall!). I’ve a variable power supply on my normal lipo charger.
So i heard that with DJI batteries, the last stage of charging balances the battery. If you only charge back to 50 percent, aren't you leaving the cells in an unbalanced state during storage, and is this detrimental?
Me blasting the packs at full power, especially when they are fresh XD, but great video! Especially tapping the button to prevent discharge is great to know for a longer trip or so. 100% agree on all packs, don't fly unless you charged them within the last 48 hours.
@@MadRC Thanks, sounds good. I'm probably gonna fly it in winter but not in extreme temperatures, i've heard it's okay if you warm the battery up first before you take off.
Hi ! Cheers from Argentina ! I have a question. The battery is fully charged but when I want to start the drone, the led lights blink fast in red (low battery)
Hi, i plowed my drone into the ground at speed, only breaking 1 arm which was fixed with a liberal application of glue, but the 4 cells compacted into each other. This is evident from the new gap that can be felt at the top of the battery through the soft side covers. There is now about 1cm of space on the top cavity of the battery where the cell was previously. However, i have had around 50 flights since, with no issues noted. Is this ok to keep using? (The cells clearly haven't ruptured, and have hopefully just displaced space. What sez u?)
I might fly my DJI Fpv once a week. I check the voltage with a meter so I have 22.8V to 23.1V total with no load before putting the batteries away. Other DJI batteries I check the cells on the app with the motors shut down. It's not the best way to check them because the quad is still drawing some amps. I'd rather have traditional lipos with a balance plug.
Did you measure 3.8v for storage? And it was about 50%. I’m surprised by this but it’s excellent information. I was thinking it would be a much lower percentage.
This is a common LG Chemical MJ1 18650 cell datasheet. In the document, you will see the discharge temperature range is from -20 to 60 degrees Celsius. Just below the line, it was said that the cell will keep its life only one month under -20~60 degrees Celsius environment. As far as now, JAPAN's FDK is making NiMH cells which endure more temperature range with 1/3 of Li-ion cell voltage. Life time of high quality NiMH cells will live longer than 15 years (FDK had checked it no more than the years written on it. I have dozens of SANYO NiMH cells still working at home. SANYO was sold to PANASONIC and it became FDK under the umbrella of Fujitsu.). Lithium 2ndary battery technology is not so happy with the earth environment by now. The age of solid Lithium ceramic battery is coming with more than twice the energy density than the current Li-ion. TOYOTA. MURATA, Panasonic, Maxell , TAIO YUDEN etc are running hard for the full solid batteries now. Japanese companies occupied more than 50 percent of the full solid battery technology with patents back in 2018.
The weight of all the drone batteries could be halved with the Japanese license in 2~3 years. Drones will fly more than an hour in the following years with the battery replacement. Cost will be downed by the electric auto makers..
Thanks for the video. I got my DJI FPV Combo today and observed something strange. I can connect the googles and take off with the drone without activating them first (just bring both gimbals together at the bottom) So I don't have the system connected to my smartphone or app at any point and I can still use it. This is not normal or? Why should I activate the system?
I just got the fly more combo n the batteries don't light up or seem to charge at all either one of them .are the in hibernation mode or anything I have to do
All you should need to do is put them on charge and they should come out of it by them selves. Literally just plug them in and leave them 15 minutes and it should be charging. If it’s not i would make sure your mains adapter is plugged in properly.
Actually, the manual addresses this, telling you to charge to 100, leave it for a while, discharge to 20, leave for 6 hours, then should be balanced on next recharge
@@MadRC if it's P4P then top cover is fixed by two screws and a plastic latches. Quite easy to open. But for balancing bottom part should be opened instead lol
Ian, it’s bluesgeek from RCG. As always, you are at the for front of knowledge. Have you anything to report regarding sag with these batteries? At what point in the percentage indicator is there an appreciable throttle performance hit?
It depends on the winds and the speed your going at If I’m going 60 in windy conditions, the performance hit will happen at around 40% But if I’m going fast and slow and fast and slow just chilling it will hit at around 15-20%
@@bmgproductions1006 Thank you. So throttle management might be considered to be fairly consistent above 40%. This is important for us noobs who may not have enough experience or situational awareness to feel the performance hit, and might want to avoid a diaper change along with the battery change!
I purchased a DJI FPV second hand, and 1 of the 3 batteries will not charge. When I plug it into the hub, the light flashes green for about 3 seconds, then turns red. When I push the power button on the battery, no light appears…..is this battery dead?
What does it mean when I just unboxed my dji fpv, plugged the battery into the charger and it has 4 flashing lights? On my mavics, that usually means the battery is too hot. But my fpv battery has never been turned on.. its room temp
The DJI fpv come down once the lipo voltage is critical. Had experienced that myself. It just comes down slow and pushing throttle up does not help much. It then hardly manages to keep the altitude.
I hope your drone was close by when this happened. I've had a few flights where I was worried I'd run out of gas and tried to stay over area where I'd be able to find the drone if it decided to land on its own.
Hi, you are showing nearly at the end a photo of an extension with another RC battery until now I couldn't find any photo or description in forums. Where is this photo from? Are there already more known battery hacks? I was trying to attach another battery to the controller and unsoldered the origin battery. First it was no Error by just pulling out the balancer cable. But as I unsolderd the + and resolderd the battery know ist just blinking with one LED and does not power the drone ... Needs to be further investigated :)
You can power the drone in parallel with the battery but the original battery needs to be connected. It uses a CAN bus to communicate with the battery. I haven't seen that photo before either but I've powered my drone using a bench top power supply but wiring it in parallel with the battery. I did this so I could download logs without needing to keep swapping batteries.
@@EsShark2 I did not fly with the benchtop power. I didn't get any warnings in the goggles though. I'll need to test more to make sure powering in parallel will work. I was mainly interested in keeping the drone powered while I downloaded its logs. I have since gone the easy route and only use the logs from the goggles. I have a Hackaday IO account where I've posted photos and other details about my experiments. I can't add a link but you can find my pages by searching for my user name. Put a period between Hackaday and IO to find the site.
hello ! Thank you for video! I have a situation: I've bought fly more kit for this drone and put it on charge with a hub. It was charged one bat after another one by one in line. But when these two were installed to the quad he said "battery software is not the right one, please update" and offered to update via Googles. The next charge they didn't charge one after another and hub led became red as one of them charged. The next in the line was only able to be charged when I unplugged the charged one.. so the sequence was changed after update. Do you know how to fix it?
I'm having a similar issue. The battery that came with the drone works fine, but then I got the Fly More kit, charged them both using the rail and Im unable to fly with those batteries installed. The drone just blinks red with no errors. I've heard from lots of other people having this issue but I'm not sure what to do next to get them to work. Did you ever get yours figured out?
DJI have a change/use count timer in the battery. Basically you have reached what DJI believe is EOL for that battery. On older drones this was as low as 100 cycles.
You are the absolute best review person Thank you To me the batteries are a bargain Having experienced two lipo fires I have been praying for this Not up to acro on this beast yet but it's coming These batteries are cheap. !@
Smart batteries are what put me off investing in off the shelf drones. It’s not just the ridiculous price but the fact that once a company stop producing these proprietary batteries the drone becomes a paperweight on borrowed time. I understand that they make life easier and safer for those with limited technical knowledge but in seriousness £140 for a low C rated 6s 2000mAh with a simple BMS circuit is extortion. Bruce quite correctly coined it when he said that the DJI FPV Drone, and other drone reliant on similar batteries, are the inkjet printers of the RC world. They’re a cash cow for the manufacturer and destined to be prematurely obsolete.
It might be possible to refurbish the DJI batteries. Just replay the cells with fresh ones when they get too old to work. I'm not sure if this will work or not but I plan to try once one of my batteries go bad. The batteries are too hard to open. I've done it a couple of times. I always open the same pack since opening the pack leaves a blemish.
that is not the right conclusion out of such experience. It it had worked then you have to be aware of the ambient temperature the battery had when you took off. If the temperature is lower then yesterday you will not get that same flight time at same speed and wind. If it gets warmer it might stay the same. Flying beyond 0% is a deadly mistake - and you might think that no one cares but do not forget that in case of any accident the police will call dji and ask for the flight data. I can tell you this cause someone had crashed his drone here on the highway last week and the police is on the hunt cause the pilot had been flying without the owners ID and it had caused a serious crash coming out of the sky and hitting a truck and crashing into the screen. the damage is roughly 100.000€ and now the police is on the hunt for all known flyers till dji will deliver their data and for sure the girl / guy will be found. Second case here. The driver survived but truck looked bad and the insurance is on the hunt too.
@@divingfalconfpv4602 I was def. not testing the Battery life but the range, RTH kicked in and I just let it fly home and enjoyed the view! The battery said 0% but fly time (sorry didn't mention that) showed still around 60 sec. and I landed at around 2 sec. left! I think - WOLF - is right with colder battery at start and the drone's calculation ... anyways thanks for the concern and education! ¶ :-)
I left My phantom 4 batteries fully charged when put away for 6 months not using them all three had charge in the not full but charged up no bother 3 wks ago ,I’ve been out helping search for a weee missing dog and have had no bother .they’ll be 5 yrs old at the start of June look after them and it’ll save you in the end
I am not sure, maybe he says this in the video... maybe not. But these DJI batteries actually self discharge for storage. I have a few DJI products, and at first I was weirded out by the fact that I would charge batteries and if I didn't use them they would all be down to 75% charge after 3 days. But after some research I found that the batteries actually know how many cycles they have been through and they discharge themselves, ohh I just heard him say it as I type this. HAhah, Yea, Pretty "smart"
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Hi Everyone,I really like to get feedback and comments on the subjects I talk about so please comment below with any questions, feedback or just say hi :)
I would also ask if you find my content helpful please consider supporting the channel by subscribing.
I also live stream every Sunday evening and it would fantastic to see you there
Mads Live th-cam.com/channels/87tSDNQuryh06hCKALODwQ.html
You can also support the channel so we can keep making content via links in some of my videos. Patreon supporters of my channel get exclusive access to my Discord Server, there I post info, behind the scenes content as well as help and support on the things i discuss on the channel, for more info check out
www.patreon.com/MadRC
Hi!
Tell me what is better if I fly every day: half charge after flight and then full charge before next flight, OR leave ~15% after flight and full charge before next flight, OR full charge after flight and leave it charged to next day? Of course take 30-60minutes between charging and fly
I can say that this channel provides more detailed info on the products than others... Really appreciate u man
Listen to this man, he knows what he's talking about. He has set more lipo batteries on fire than anyone else I know :-D
Lol..your funny Bruce
🤣🕹🚁👍
may i know where i can get official information that this battery will self discharge in 2 days as u said ? I cannot find function manual that set the discharge date as mavic pro
Is there any updates for the project you was talking about at 4:00 ( custom build charger for JPI FPV batteries ). really interesting project !
Love your comment 'link to overpriced fpv batteries'. Looking forward to hearing more about your builds and mods as pilots get more used to these quads.
Great vid and thanks for all the information.....is their a reason why my battery blinks twice when I put it to charge
I admit these are not cheap batteries however their features and build quality and smart features make these the best so far. In Australia these batteries cost AU$229 each or AU$429 for two including the battery charging hub which alone is AU$70, so the fly more kit is two batteries and one charging hub for AU$429.
I purchased an extra four sets of the fly more kit so now have eight of these smart batteries - so all up around AU$1,840 for the four fly more on top of the AU$1,600 for the FPV combo kit which also includes one of these batteries. Never cheap out on batteries for these high power / high drain devices like drones as its simply not worth the risk personally or hardware wise.
I currently have an issue with one of my batteries I get the flashing red light on the drone and I think it has something to do with firmware as I had to update all of my 6 batteries. These batteries are very new and I see this battery has only had 2 flights. I can take off the drone won’t start the motors so I swap it with a different battery it works.
I'm having the same issue, did you ever figure out what to do?
@@flawlesskrush2145 nope still also waiting on DJI to get back to me about what they want to do.. Not great considering it’s a brand new battery.
@@chappysktichen1624 from what I gather it happens when you charge the two batteries in the kit with the charging rail. I guess your supposed to charge it one by one on the charger it came with the first time. But nothing in the instructions say this as far as i know
Can this battery also be used for the DJI Mini 2?
I got this battery as a present, but don't know how to use it.
Thank you and great content tho
No i have a mini and the DJI FPV drone
And their batteries do not mix
The fpv drone battery is bigger than the MAVIC mini itself. Lol
But I don’t know what you would use that battery for. I guess you can sell it for maybe $75
Thanks for this! I have a single battery that is stuck in ‘internal communication error’ and will not charge or power the drone? Is this something you have seen before? Many thanks 🙏🏼
Is it Dji FPV or another battery?
@@ua9851 DJI repaired it. Was an internal fault on the battery
Thank you I really liked the info! Due to the nature of my work batteries are staying long time unused!
Hi!
Tell me what is better if I fly every day: half charge after flight and then full charge before next flight, OR leave ~15% after flight and full charge before next flight, OR full charge after flight and leave it charged to next day? Of course take 30-60minutes between charging and fly
Below 20 degrees oO My God... that's 3/4 of the year here in sunny Yorkshire.
Thanks for the information. Everything I needed to know is covered here.
You've done a nice summary on the batteries. Several years ago, I got a phone call from an LG Chemical sales manager who worked at the headquarter. He asked me the possible use of Li-Polymer or Li-ion batteries for UPS system for broadcast transmission sites. I asked back to him 'What's the optimal operation temperature for Lithium-based batteries?" He answered me without hesitation. It's 25 degrees Celsius. Below/above 25 degrees, you could face the reduced battery capacity with no exception. You'd better change your comment with 15 degrees in the video.
this is an excerpt from a Sandia National Lab report, USA. Even the sealed lead acid batteries are designed to operate in 25 degrees Celsius with no exception.
The optimum operating temperature for the lead-acid battery is 25°C (77°F). As a
guideline, every 8°C (15°F) rise in temperature will cut the battery life in half. VRLA,
which would last for 10 years at 25°C (77°F), will only be good for 5 years if
operated at 33°C (95°F). Theoretically the same battery would endure a little more
than one year at a desert temperature of 42°C (107°F).
core.ac.uk/download/pdf/195152718.pdf pp.9
Age of battery electric car? I would rather laugh. My new LiFePo battery for my UX250h arrived a few days ago. 100Ah for auxiliary starter battery for a hybrid fossil fuel car. That's what it's for.
I think your misunderstanding what I am saying, Yes I am well as wear of 25c is the sweet spot but isdeal reange is 20-30C for Lipo packs, the DJI Smart battery will prevent take off below 15C, between 15-20C it will allow flight but you need to let it warm up and be easy on the cells. Yes in the ideal world you would not flt below 25C but that's not realistic and the batteries will self warm to 30C with use as well.
@@MadRC Sweet spot of the battery cells are relatively narrow for Litihim-based rechargable drone batteries. It would go much worse in less than 10 degrees Celsius. Warming up the battery by hovering could work but the overall life of the battery would go into vain. I didn't said that you are wrong. 25 degrees Celsius is mandatory for normal use of all the batteries. That's the limitation of early 21st century technology.
@@MadRC I made a long conversation with drone-related battery warmer developers here a few years ago. The battery should be kept cooled and warmed inside an explosion protection hard case with temperature sensors on the battery placements in it. That was a big problem at that time. No product meets the high standard by now.
Can I just add a note about cancelling the auto-discharge?
Correct me if I'm wrong; assuming the lipo cells act like traditional lipos, keeping them fully charged for an extended period of time can, and likely will, cause the battery to swell and potentially ignite. Cancelling the auto-discharge is doing exactly this, so anything over a week or so isn't advised.
If you're not going to be flying any time soon, just let the discharge happen and recharge when you're ready to fly.
Absolutely 100%. Chances of actual Fire is minuscule with DJI batteries however you are correct.
great video! Something I read was that you should charge the batteries to around 70% and charge them to 100% on the day you fly them. Is that overkill ?
Hi Mad, thanks for an informative video!
I assume most what you said is also valid for the Mini 2's batteries?
One thing's is particular to the Mini 2 though, if you have the Fly More combo with the 3 bay charger be aware that it doubles as a power bank and can charge stuff off your flight batteries. But do NOT leave your batteries in the charger when long term storing them since they will not then self discharge!
Thank you for the great topic and video.
I am not quite sure about the 3 days term, when after this time the automatic discharging is triggered. I am used to fly RC helicopters, where the LiPo battery sets are also very expensive and thats why I immediately charging my all batteries to the storage level (3,6-3,85V per cell) after getting home after flying, like it is recommended by LiPo and LiOn producers. Than the lifetime is greatly improved by getting at the storage level as soon as possible (not in days, but in minutes).
I have asked my DJI dealer about the automatic discharging of DJI FPV batteries and he says, it is supposedly after 10 days for DJI FPV batteries. The mentioned 3 days are allegedly at e.g. DJI MAVIC , AIR batteries ... I had no time to check it yet, but it is no problem to find it out by measuring.
Anyway, even the 3 days are very long time. If it should be 10 days, it is very bad for their lifetime. The same with charging - it should be done immediately before flying. It simply means, not to let run the chemical processses in batterries in fully charged state, when it is very strong and it shortens significantly the batteries life. And conversely, also not let them fully discharged. This little care is money saver, even it is sometimes a bit bothering.
Thank you for de-mystifying the FPV Smart Battery! I just love that you share some info that will keep all of us flying!
Thanks.
Outstanding! Subscribed.
Was flying it the other day and realized the battery showing 100 percent charge after a few minutes. Figured something must be wrong, i did get a message saying battery maintenance required. Do you happen to have a video showing how exactly you perform the battery maintenance? Thanks for all the info. I fly over water a lot and it's been a scary experience to see the battery percentage still at 100 percent after cruising it at 60 mph for a good mile.
Read the manual
Did you find out what it means when it’s says battery maintenance needed? What do you do?
Thanks Mad, really helpful. Looking forward to the chargers diy video. I just don't want to spend so much money on Fly and More combo
Great as always!!!! The BEST!! Thank you so much on letting me know on what happens when I press the button to check battery level. I did not know that it resets countdown to discharge. Thank you so much! Keep the GREAT work up.
Hypothetically speaking if I were to strap an Insta360 to the bottom of the DJI FPV would the sensors detect it as an obstacle? Could it safely take of with an object hanging and potentially pivoting off the bottom?
It can. It’s been an issue on other drones. You really need to do it on top sadly.
How about quick charger I bought one it works great. BUT is it good for battery life thanks bud
After a flight session my batteries are at 20% (one led) after landing if I do not plan to fly the following days is it better to leave them like this or recharge them completely
Thank's
Nice vidéo!
Super informative video thank you sir..
thank you for all your information I'll put it to good use👍🏻⚡️✨
How long after fully charging do they start automatically discharging? (That could be annoying if charged up for a day or 2 day trip and at the end of the day/ trip you want to fly and they've discharged).. is this info all relevant to the dji avata batteries too? Thanks
Great stuff. What’s the DJI Power supply voltage? I’m in the position of having the drone kit but no charger (it’s currently plugged into the vendors wall!). I’ve a variable power supply on my normal lipo charger.
So i heard that with DJI batteries, the last stage of charging balances the battery.
If you only charge back to 50 percent, aren't you leaving the cells in an unbalanced state during storage, and is this detrimental?
Great video! Thank you.
Me blasting the packs at full power, especially when they are fresh XD, but great video! Especially tapping the button to prevent discharge is great to know for a longer trip or so. 100% agree on all packs, don't fly unless you charged them within the last 48 hours.
Great video! What do you exactly mean by, run them through a cycle? 13:10
Like go out and fly once in a while during winter when they are inactive?
Yea so charge them to 100%, fly it to around 20% then charge back to around 50%
@@MadRC Thanks, sounds good. I'm probably gonna fly it in winter but not in extreme temperatures, i've heard it's okay if you warm the battery up first before you take off.
How would you discharge one of these packs.... with a light bulb
New sub!!
Why have I not stumbled across your channel before? Fantastic advice thank you 👍🏼
great video!! With as pricy as these batteries are, it's great to know a little more about them from an expert!!
This should be required viewing for anyone who purchases an DJI FPV.
Thanks mate very informative video. Again thanks frm usa
Hi ! Cheers from Argentina ! I have a question. The battery is fully charged but when I want to start the drone, the led lights blink fast in red (low battery)
That can also mean you are in a no fly zone.
@@MadRC
But when I put other battery it fly normally.
Thank you for answer.
@@guinchostudio Im having the same issue with two of my batteries and can't figure out what to do. Did you ever figure out what to do?
Learned a lot. Thanks!
Great video good info..Thanx.. happy flying, going out now to fly mine.🕹🚁👍
Very impressed! Thanks for the tips
Hi, i plowed my drone into the ground at speed, only breaking 1 arm which was fixed with a liberal application of glue, but the 4 cells compacted into each other. This is evident from the new gap that can be felt at the top of the battery through the soft side covers. There is now about 1cm of space on the top cavity of the battery where the cell was previously. However, i have had around 50 flights since, with no issues noted.
Is this ok to keep using?
(The cells clearly haven't ruptured, and have hopefully just displaced space. What sez u?)
have you got Dji Refresh or drone insurance
Is there such thing as too much/many discharge or too fast in days?
No really but just bare in mind these are consumables like printer ink, 100-300 cycles life is what i am expecting to be normal use.
Hi, were you able to make a field charger for these batteries? Very much interested about your experiment 😜
It’s on the list. I’m a little behind on these things.
I might fly my DJI Fpv once a week. I check the voltage with a meter so I have 22.8V to 23.1V total with no load before putting the batteries away. Other DJI batteries I check the cells on the app with the motors shut down. It's not the best way to check them because the quad is still drawing some amps. I'd rather have traditional lipos with a balance plug.
How do u get them out of hibernation
Anyone know where the battery hack thread he posted that picture from where someone paralleled the batteries? Love to read about it.
Did you measure 3.8v for storage? And it was about 50%. I’m surprised by this but it’s excellent information. I was thinking it would be a much lower percentage.
This is a common LG Chemical MJ1 18650 cell datasheet. In the document, you will see the discharge temperature range is from -20 to 60 degrees Celsius. Just below the line, it was said that the cell will keep its life only one month under -20~60 degrees Celsius environment. As far as now, JAPAN's FDK is making NiMH cells which endure more temperature range with 1/3 of Li-ion cell voltage. Life time of high quality NiMH cells will live longer than 15 years (FDK had checked it no more than the years written on it. I have dozens of SANYO NiMH cells still working at home. SANYO was sold to PANASONIC and it became FDK under the umbrella of Fujitsu.). Lithium 2ndary battery technology is not so happy with the earth environment by now. The age of solid Lithium ceramic battery is coming with more than twice the energy density than the current Li-ion. TOYOTA. MURATA, Panasonic, Maxell , TAIO YUDEN etc are running hard for the full solid batteries now. Japanese companies occupied more than 50 percent of the full solid battery technology with patents back in 2018.
The weight of all the drone batteries could be halved with the Japanese license in 2~3 years. Drones will fly more than an hour in the following years with the battery replacement. Cost will be downed by the electric auto makers..
How do you fully discharge this battery?
Hello, once the first 5 flights have been carried out smoothly, to what percentage can I lower these batteries without risk of breaking down?
You can go for it from there.
@@MadRC , perdona no entiendo tu respuesta
Awesome video thank you very much
What a great video! Im impressed.
Thanks.
Yes sir likewise
Thanks for the video. I got my DJI FPV Combo today and observed something strange. I can connect the googles and take off with the drone without activating them first (just bring both gimbals together at the bottom) So I don't have the system connected to my smartphone or app at any point and I can still use it.
This is not normal or?
Why should I activate the system?
Your drone was used. Apparently Banggood is selling some used drones. Where did you purchase yours?
I just got the fly more combo n the batteries don't light up or seem to charge at all either one of them .are the in hibernation mode or anything I have to do
All you should need to do is put them on charge and they should come out of it by them selves. Literally just plug them in and leave them 15 minutes and it should be charging. If it’s not i would make sure your mains adapter is plugged in properly.
@@MadRC left all night nothing
I have recently brought a DJI FPV combo and the battery has been saying maintenance required since day what does this mean?
You can try cycling it a few times but if that continues then you shoud reach out to DJI.
Actually, the manual addresses this, telling you to charge to 100, leave it for a while, discharge to 20, leave for 6 hours, then should be balanced on next recharge
After flying, should I recharge batteries to only 60%, can I charge them 100% and let them automatically discharge to 60% (which is more convenient).
How do you check the battery health ?
how to check battery cycle??
I have a phantom 4 battery deslbalance. Can I open my self I calibrate?
Not easy on the P4 to get the top off, it is doable though and you can manually balance them
@@MadRC if it's P4P then top cover is fixed by two screws and a plastic latches. Quite easy to open. But for balancing bottom part should be opened instead lol
Once the pack die, gut the stock cells and replace with higher grade cells.
Should I just leave my DJI FPV batteries on the charger when not in use?
No don’t do this. They should be stored somewhere cool, dry and out of sunlight so they will self discharge
Great video and product but I hate how very little information came with the drone itself
my dji fpv batterie have on air 85 prozent and in seconds 0 prozent and it chrash that,s the super dji batterie . it was warm enougth.
Ian, it’s bluesgeek from RCG.
As always, you are at the for front of knowledge.
Have you anything to report regarding sag with these batteries? At what point in the percentage indicator is there an appreciable throttle performance hit?
It depends on the winds and the speed your going at
If I’m going 60 in windy conditions, the performance hit will happen at around 40%
But if I’m going fast and slow and fast and slow just chilling it will hit at around 15-20%
@@bmgproductions1006 Thank you. So throttle management might be considered to be fairly consistent above 40%. This is important for us noobs who may not have enough experience or situational awareness to feel the performance hit, and might want to avoid a diaper change along with the battery change!
@@AerRider thanks for the feedback
I love this batteries, how they look, how they work, durability. top notch
I cannot understand if I can use a power bank to recharge the FPV battery. Any ideas?
Ive got the same question. Did you solve it?
The only way would be to use a powerbank with a 230V powerplug
I purchased a DJI FPV second hand, and 1 of the 3 batteries will not charge. When I plug it into the hub, the light flashes green for about 3 seconds, then turns red. When I push the power button on the battery, no light appears…..is this battery dead?
thank you
What does it mean when I just unboxed my dji fpv, plugged the battery into the charger and it has 4 flashing lights? On my mavics, that usually means the battery is too hot. But my fpv battery has never been turned on.. its room temp
Might be too late, but this means that the battery has found something wrong and will never ever charge again. They are permanently broken.
The DJI fpv come down once the lipo voltage is critical. Had experienced that myself. It just comes down slow and pushing throttle up does not help much. It then hardly manages to keep the altitude.
I hope your drone was close by when this happened. I've had a few flights where I was worried I'd run out of gas and tried to stay over area where I'd be able to find the drone if it decided to land on its own.
great video thank u
very thanks
Hi, you are showing nearly at the end a photo of an extension with another RC battery until now I couldn't find any photo or description in forums. Where is this photo from? Are there already more known battery hacks? I was trying to attach another battery to the controller and unsoldered the origin battery. First it was no Error by just pulling out the balancer cable. But as I unsolderd the + and resolderd the battery know ist just blinking with one LED and does not power the drone ... Needs to be further investigated :)
You can power the drone in parallel with the battery but the original battery needs to be connected. It uses a CAN bus to communicate with the battery. I haven't seen that photo before either but I've powered my drone using a bench top power supply but wiring it in parallel with the battery. I did this so I could download logs without needing to keep swapping batteries.
@@ddegn thx for this expirience. Did u also fly with this benchtop arrangement?
@@EsShark2 I did not fly with the benchtop power. I didn't get any warnings in the goggles though.
I'll need to test more to make sure powering in parallel will work.
I was mainly interested in keeping the drone powered while I downloaded its logs. I have since gone the easy route and only use the logs from the goggles.
I have a Hackaday IO account where I've posted photos and other details about my experiments. I can't add a link but you can find my pages by searching for my user name. Put a period between Hackaday and IO to find the site.
How do I charge the dji fpv goggle lipo? I can't find any info about this.
Just plug it into USB. It can be charged from any normal USB Charger.
@@MadRC thanks, I was afraid to do this as it is 9v. Thinking it would damage my phone charger. But now it's charged to 100% 💯👌
Very informative 👏
good job
Thanks
hello ! Thank you for video! I have a situation: I've bought fly more kit for this drone and put it on charge with a hub. It was charged one bat after another one by one in line. But when these two were installed to the quad he said "battery software is not the right one, please update" and offered to update via Googles. The next charge they didn't charge one after another and hub led became red as one of them charged. The next in the line was only able to be charged when I unplugged the charged one.. so the sequence was changed after update. Do you know how to fix it?
I'm having a similar issue. The battery that came with the drone works fine, but then I got the Fly More kit, charged them both using the rail and Im unable to fly with those batteries installed. The drone just blinks red with no errors. I've heard from lots of other people having this issue but I'm not sure what to do next to get them to work. Did you ever get yours figured out?
What does it mean when it says in my goggles "battery lifespan reached"
DJI have a change/use count timer in the battery. Basically you have reached what DJI believe is EOL for that battery. On older drones this was as low as 100 cycles.
@@MadRC thank you! Thankfully all of my batteries are still working great despite those notifications 😅
my battery ids acting up i plug itin ti charge all lights blink offf o on really fast
help any idea
Some update please.
nice one, subbed
You are the absolute best review person
Thank you
To me the batteries are a bargain
Having experienced two lipo fires
I have been praying for this
Not up to acro on this beast yet but it's coming
These batteries are cheap. !@
Very clever except that these batteries have perhaps the highest failure rate of any consumer battery today.
Smart batteries are what put me off investing in off the shelf drones. It’s not just the ridiculous price but the fact that once a company stop producing these proprietary batteries the drone becomes a paperweight on borrowed time. I understand that they make life easier and safer for those with limited technical knowledge but in seriousness £140 for a low C rated 6s 2000mAh with a simple BMS circuit is extortion. Bruce quite correctly coined it when he said that the DJI FPV Drone, and other drone reliant on similar batteries, are the inkjet printers of the RC world. They’re a cash cow for the manufacturer and destined to be prematurely obsolete.
True. Like apple. You have to buy all their stuff. They probably make more money on the battery than they do on the drone lol
It might be possible to refurbish the DJI batteries. Just replay the cells with fresh ones when they get too old to work. I'm not sure if this will work or not but I plan to try once one of my batteries go bad. The batteries are too hard to open. I've done it a couple of times. I always open the same pack since opening the pack leaves a blemish.
Thanks M8 ... I can say yesterday I flew long-range (total >10km) and on my way back I was at
that is not the right conclusion out of such experience. It it had worked then you have to be aware of the ambient temperature the battery had when you took off.
If the temperature is lower then yesterday you will not get that same flight time at same speed and wind.
If it gets warmer it might stay the same.
Flying beyond 0% is a deadly mistake - and you might think that no one cares but do not forget that in case of any accident the police will call dji and ask for the flight data.
I can tell you this cause someone had crashed his drone here on the highway last week and the police is on the hunt cause the pilot had been flying without the owners ID and it had caused a serious crash coming out of the sky and hitting a truck and crashing into the screen. the damage is roughly 100.000€ and now the police is on the hunt for all known flyers till dji will deliver their data and for sure the girl / guy will be found. Second case here. The driver survived but truck looked bad and the insurance is on the hunt too.
@@typxxilps wow, yes horrible :-( I fly in the open field, I wouldn't dare to risk if it could hurt someone ¶ :-)
@@typxxilps and thank you for all this informatie, very interesting and helpful ... I know a (little) bit, but all the extra info is welcome!
Batteries can fly at lower voltage yes. But does damage to the battery. Hence why dji wants you to land to save the battery.
@@divingfalconfpv4602 I was def. not testing the Battery life but the range, RTH kicked in and I just let it fly home and enjoyed the view! The battery said 0% but fly time (sorry didn't mention that) showed still around 60 sec. and I landed at around 2 sec. left! I think - WOLF - is right with colder battery at start and the drone's calculation ... anyways thanks for the concern and education! ¶ :-)
i love how no video talks about how the batterys are broken and wont let you take the fuck off in the fpv........ any fucking help?
tolk a lot🙄
Great video...
Aren't there any aftermarket batteries? I was going to buy the DJI FPV bundle until I saw the price of extra batteries! Rip off!
Sadly no. DJI only and yea expensive.
I just got the fly more kit. 300 bucks..
So many finicky things to know. Wish directions would point out pertinent information like the old days.
My batteries last like 8 mins not good
Every time you say self discharge I hear self destruct.
Hahah.
I left My phantom 4 batteries fully charged when put away for 6 months not using them all three had charge in the not full but charged up no bother 3 wks ago ,I’ve been out helping search for a weee missing dog and have had no bother .they’ll be 5 yrs old at the start of June look after them and it’ll save you in the end
What language is this?
I am not sure, maybe he says this in the video... maybe not. But these DJI batteries actually self discharge for storage. I have a few DJI products, and at first I was weirded out by the fact that I would charge batteries and if I didn't use them they would all be down to 75% charge after 3 days. But after some research I found that the batteries actually know how many cycles they have been through and they discharge themselves, ohh I just heard him say it as I type this. HAhah, Yea, Pretty "smart"
£125 each tho!!!! 🤣
I would have to buy drone 1st and that is not going to happen..