I keep making the mistake of watching educational RC videos of other channels, then finding a hugely superior presentation of similar subject matter here on RCModelReviews. Thus is the best explanation of lipo I have found. Awesome channel - great job!
I'm new to the hobby. I started off with toy grade drones and now enjoy fast carbon flying machines along with stable GPS video machines. I love the hobby and appreciate all of your extremely well made informative videos! I really thank you so much! Your a great teacher and one really smart dude. I love technology and electronics. I feel like a 40 year old boy sometimes. Don't ever loose that. Thanks again!
Great video Bruce. I have been flying for a few years now but now and again I still come and watch your videos to remind myself the way things should be done. Never hurts to give yourself a reminder now and again, especially where lipo battery's are concerned!
Wow, I think you just saved my (first lipo battery's) life! I'm very new to RC flying, and lipo batteries as well, so especially the part about storage charging your lipo's was an eye opener! Thank you for this very informative channel of yours! ;-)
Thanks Bruce for sharing your knowledge. I'm a noob to RC the got bit by the multi-rotor bug a few months ago after watching some FPV videos. You and many others have been a great help at climbing this RC mountain of technologies. Much appreciaton from this Yank in sunny California.
I really enjoy your videos. Very educational and good sense of humor. I feel like attending an electronics classroom with an excellent teacher. Thanks a lot.
Tnx a bunch! I just got a delivery of eight 5000mah Hyperions. I didn't know about the storage charge, so I guess u just saved me a buck load of cash!!
Great tutorial Bruce....in fact you are a natural teacher. State your objective....do your presentation.....then tell us what you told us. Couldn't be better than that. As for connectors....I saw early on that these things were going to be a problem for me....so I use the Anderson Powerpole connectors.
Thanks so much for making me aware of the battery alarms. I am making sure all of my friends have these . Thank you so much for your fantastic information, I have been watching your videos for hours !
Hi Bruce, another wonderful video!!! I think you should also talk about the connections between lipo packs in serial and Parallel and how they change the values of voltage, milliamps and the c rate in each of those configurations .... thank you!!!
Wow! Excellent video. You taught me a lot that I didn't know being I'm new to quadcopters. I have 3 & didn't know this important info about lipos. Thanks again!
thanks Bruce learnt heaps off this video about Lipos... like how not to burn the house down ! had no idea about fully charged Lipos sitting around ! Thanks again
@RCModelReviews I think we all agree about internal resistance hurting the efficiency more, when current drawn is higher. But the valid point that hot4plasma was trying to make, is that the largest numbers on these battery pack labels are in milliamp-hours (or amp-hours), (as opposed to just "milliamps" which you say at around 1:14 ). Because the quantity primarily indicates the *charge capacity*, not current rating. The "1C" spec is defined as capacity divided by 1 hour. To be pedantic.
Great helpful videos. One question; why is there a difference between the voltage stated on the cover of a battery, i.e., 3S Lipo is 11.1 volts(3 x 3.7 volts). But when you measure the actual voltage of a fully charged battery each cell is right at 4.2 volts. Why isn't the 4.2 actual voltage used in all the calculations?
how much runtime will i get from a 4400mah on 30c 6.6volt average use for servos . watching the video made me feel like i was back in school, in one ear and out the other .
Thank god i found this video. I wanted to scratch build some models but i realized i just didnt know enough about rc plane electronics and batteries were one of the topics i was fuzzy on.
Wot ho Bruce, Thanks for the Vid, I have two Batteries 2200mah lipos for the Blenheim which I am in the throws of building I have "all the gear and no Idea" electric is not my bag. The batteries have been charged buy Moi, not knowing of the long term affect.. On the charger which I purchased it has a discharge setting , Now my question is How does one use this or can this setting be used for the discharge of Lipos. Hugh
No mention of cold storage? I did not see any recommendation about suitable chargers although charge rate is well covered. How do you know what connectors advertised batteries have?
Thanks 78E. I recently bought a iCharger 4010 Duo and I see what you mean. Only, does the 1S cells need to be storaged on 3.7 somewhat Volts? like the 2, 3 and so one cells? Or is that only necesary with batteries with more than one cells?
I sometimes charge a bunch of batteries the night before... then the next day, the weather turns to crap and crap for several days after that. I'm wondering how long I should keep them at a full charge before they get damaged. I heard at AllThingsThatFly you shouldn't keep them charged for more than a week. What say you Bruce?
This may have been asked already but here it is anyway. Someone told me that storing ur lipos in the refrigerator. That this would virtually stop any discharge. What do you think?
Very good video, informative and erm.... energetic speech, that stops me from nodding at my computer screen when learning about these particular technological subjects. A skill that is very sparse. Thank you :)
Very right question, it is because the capacity is actually not 1 amps as Bruce says, the capacity is 1 amp-HOUR. Energy capacity should really be stated in its proper unit joule or alternatively in watt-hour. Using ampere-hour as a capacity indication complete forgets that the voltage (LiPo cell count) also have to be included to calculate the energy in the battery pack.
thnaks for video have question why some lipo battery like 3.7v when we charge them they go over heat puff but other battery the same voltage and work fine
Thanks Bruce ! Very informative and well done sir ! I'm a noob and need to learn so much my head hurts. I haven't yet bought my first transmitter and receiver and ESC and servos, etc. etc. etc. Not to mention my first ARF ! But in any case you are a Gentleman and a Scolar.
I wish you had talked about the wires coming out of the various batteries. The large black and red wires are obvious but the other set of wires. What are those for?
Thank you for a very educational video. One question however, I fly also small hrlicopters like the WL V911 on 1 cell batteries, 3.7 Volts. How do you store those kind of batteries? And how do you measure that voltage, there is no charger with 2 leads connector except for the ones with the heli pack and those are very simple. Thank you, Willem
Did an esc built in with a over discharge limiter in it? If it's not what would happened if the current goes below the recommend when the battery is in the sky??
Anyone know where's the upcoming video he talks about? Where he was going to talk about matching your batteries with your motors, escs and props. I can't find it.
Well great job, where can I find one like your's? I have look at 4 or 5 but they are out of stock and do not have every thing on them like your's. so can you help a old man out? Have a great day!
Nice job, I am just getting into using lipos and this video was a great learning tool. I will definitely be buying a few more battery testing devices . Thanks
Nice video, just one complaint: The capacity of the battery is rated in ampere hours, not in ampere as you say in the beginning. Ampere is a unit for a momentary current, ampere hours is current over time, which is capacity.
Hi Xjet - you may remember me from our exchange of puns regarding the power-lines on the park video of yours :P Quick question regarding this charger business: I have a Fusion Ethos LX41B Pro. It only charges, however - no discharging. I'm thinking this discharge/storage voltage stuff has gotta be important so wud u recommend getting the Turnigy or similar despite me already having the Ethos? Thanks
Hey Bruce. I don't suppose that my Accucell 6 is putting the energy back into my charging battery as it reduces the Lipo cells to storage level is it? Seems unlikely.
Those batteries you mention are only one cell, and as there is no other cell to balance it with, there is no need for a balancing connector. If you use an Imax type charger (or more or less any other for that fact) just connect it to the main charge port (red to positive, black to negative) and charge as a 1S battery. Measuring the voltage is just between the positive and the negative, the same as "per cell" method on the multicell batteries.
dang.. now i know why basically all my lipo's are puffy.. i havent discharged them enough when flying, and i have allways left them after flying for the day.. so all batteries are probably about 20-30% used... and i have allways charged at 2 amps.. but i dont think i own a less than 2 amp battery... can a puffy battery explode on me when flying, or will the cells show different voltages before i get to a critical point in a batterys life?
after flight can we charge batteries when their voltage drops to 3.8 like that or else i need to drain fully upto 3.5 by flying for more time like that for better life of batteries.
Cool video, gives me some insight to hobby batteries. It would be nice to see one on charging and discharging also battery charger selection. If possible.
Hey Bruce, great videos! I've learned more about RC from your videos and site than the rest of the internet combined (last week I finally donated $50, which is way less than I owe you for all your great videos)! Anyway, have you ever considered doing an "All About" video covering brushless motors? That's the one area that I still find massively confusing about electric RC -- I'm lost as to when to use high vs. low kv motors, when to use inrunners vs outrunners, and the myriad tech specs!
Thank you so much for your videos - I have learned so much! I am really looking forward tot he videos on ESC's and such. What has me stymied is the relationship between kV rating, prop size and wattage. I find myself just trusting others trial & error and experiences, but I know there must be a more logical process for selecting and matching prop/motor/ESC's and batteries beyond, 'It worked, moved and didn't burn up...' Thanks!!
is there any way to test if a lipo charger is working properley without actually having a battery? my lipos caught fire while charging (was actually my fault, batteries were swollen and had a broken balance cable). i bought new batteries but dont know if the charger still works, and am afraid to connect the new batteries to the charger
I`m a bit confused. I never make the call on the C charge rate on my lipo packs. I plug them into my balance charger and it does the rest. A 3S pack usually takes 65 minutes to fully charge no matter the mah size. If i have a 1300 mah lipo, i will choose 1.3 amp charge, does this mean i charge the pack at 1 amp? What am i missing?
I chared my battery to go fly. 3S 1.3, 15c.and a couple of larger batteries. Didn't get out to fly and now have 4 batteries fully charged. To get them to storage charge using a 4 button charger do I need to discharge first then storage charge after, or just program to storage charge only?
Kabala FPV said in one of his videos someone told him they only go up to 70c max no matter what number a manufacturer stamps on them that might be higher, is that true?
can you charge/discharge through the balance lead, just curious I noticed the battery/charger that came with my Runner 250 advanced. it seemed to be doing just that, except for the discharge I'm guessing.
Hi , If my ESC draw 15Amps and the motors says Standard Current : 15-25A Max Current : 30A, so what quantity of amps does the motor and the ESC will draw from the battery? And i have a quadcopter, with 4 ESC and 4 motors, do i have to multiply the current from each, times the quantity of motors to compute the quantity of current (amps) that all the system will draw from the battery? Thanks for your time and amazing videos
Fernando Calatayud Zepeda First of all, your ESCs don't draw 15A, they can handle up to 15A when your motors draw from the battery and the max current for the motors is just a guide for you to not push them past that amount of Amps... Second, you need to either do a test on your motors to see how many Amps one of your motors pull at full throttle with the Voltage (Cell size) and prop size you want to use, if that's not possible, you can google to find out from other people's tests, but that's not as accurate... Once you know your max Amp draw, you can then calculate the C-rating you need... You take the max Amps your motor draws with the setup you want, let's say it's 10Amps, multiply it by the amount of motors you will use (4 motors = 40Amps) and then divide it by the capacity of your battery... Let's say you're using a 1.3Ah (1300mAh) battery, it would be 40/1.3, so you would need a battery with a C-rating above 30.77, so a C-rating of 35 would be the best to use...
Sir I have a question Can u mix lipro batterys, that are of the same voltage but different ratings assuming I dont drain below the lowest c rated battery My hook up is a serious connection, I have two 18.5v Batterys in serious, one is a 5000ma the other is a 6000ma Also could they be done in a parallel combo if that was all I had I do understand it's best to have two the same, but would it work ok?
Excellent video. I am looking at charging up to 4 Lipos at the same time, to cut down on charge time. Could you suggest the best charger for this please? (2200mah, 11.1 volt, 3s)
I have a 4s,14.8v,3200 lipo for my t-28. my charger does not have a discharge mode. how can I get to storage voltage other than just running the motor on the ground? heat in the motor would be bad, would it not.
great vids, always very helpful. what would you say is the most accurate, a battery balance/watt meter or balance charger. Why I ask is after a balance charge if I connect to my balance/watt meter to check it always says its out and gives alarm tone. I then balance with this meter but it all takes extra time. Both are overlander make the charger is RC-6s AC pro balance charger. Thanks
Hey! I'm trying to find the right battery for my 2007 Kyosho Twin Storm 800 and I have no clue what should I do.. I'm about to start pike fishing with the boat and I need a battery that lasts long and it doesn't even need to go fast. The boat needs 2x 7.2v lipos and I've been watching Traxxas 7.4v 30C 5200mAh 2S LiPo. Should I use this one with my Kyosho Twin Storm 800(2 motors)
I keep making the mistake of watching educational RC videos of other channels, then finding a hugely superior presentation of similar subject matter here on RCModelReviews. Thus is the best explanation of lipo I have found. Awesome channel - great job!
I'm new to the hobby. I started off with toy grade drones and now enjoy fast carbon flying machines along with stable GPS video machines. I love the hobby and appreciate all of your extremely well made informative videos! I really thank you so much! Your a great teacher and one really smart dude. I love technology and electronics. I feel like a 40 year old boy sometimes. Don't ever loose that. Thanks again!
Great video Bruce. I have been flying for a few years now but now and again I still come and watch your videos to remind myself the way things should be done. Never hurts to give yourself a reminder now and again, especially where lipo battery's are concerned!
STILL the best Lipo video I've ever seen. Bruce, You Da MAN! Many Thanks from the UK.
I agree Bruce, a Lipo battery comparison between brands would be great and is much needed in the RC Flying hobby.
Wow, I think you just saved my (first lipo battery's) life!
I'm very new to RC flying, and lipo batteries as well, so especially the part about storage charging your lipo's was an eye opener!
Thank you for this very informative channel of yours! ;-)
Thanks Bruce for sharing your knowledge. I'm a noob to RC the got bit by the multi-rotor bug a few months ago after watching some FPV videos. You and many others have been a great help at climbing this RC mountain of technologies. Much appreciaton from this Yank in sunny California.
Always love finding vids from your ch that I haven't seen yet. This was in my recommended list.
You have explained everything the best I've ever heard. Grateful to have found your channel. Appreciate the knowledge! Take care
Best video I have seen yet explaining LiPo batteries. Thank you!
I really enjoy your videos. Very educational and good sense of humor. I feel like attending an electronics classroom with an excellent teacher. Thanks a lot.
Bruce, you should be "required watching" before anybody does anything with RC!! Love your stuff!
Tnx a bunch! I just got a delivery of eight 5000mah Hyperions. I didn't know about the storage charge, so I guess u just saved me a buck load of cash!!
Great tutorial Bruce....in fact you are a natural teacher. State your objective....do your presentation.....then tell us what you told us. Couldn't be better than that.
As for connectors....I saw early on that these things were going to be a problem for me....so I use the Anderson Powerpole connectors.
Really good! I've been keeping my batteries at full charge in storage :/ I really learnt something here
Thank you for the videos... I got a degree in electronics engineering and you remind me of one of my favorite instructors. Enjoy
Thanks so much for making me aware of the battery alarms. I am making sure all of my friends have these . Thank you so much for your fantastic information, I have been watching your videos for hours !
Hi Bruce, another wonderful video!!! I think you should also talk about the connections between lipo packs in serial and Parallel and how they change the values of voltage, milliamps and the c rate in each of those configurations .... thank you!!!
Wow! Excellent video. You taught me a lot that I didn't know being I'm new to quadcopters. I have 3 & didn't know this important info about lipos. Thanks again!
thanks Bruce learnt heaps off this video about Lipos... like how not to burn the house down ! had no idea about fully charged Lipos sitting around ! Thanks again
@RCModelReviews I think we all agree about internal resistance hurting the efficiency more, when current drawn is higher. But the valid point that hot4plasma was trying to make, is that the largest numbers on these battery pack labels are in milliamp-hours (or amp-hours), (as opposed to just "milliamps" which you say at around 1:14 ). Because the quantity primarily indicates the *charge capacity*, not current rating. The "1C" spec is defined as capacity divided by 1 hour. To be pedantic.
Great helpful videos. One question; why is there a difference between the voltage stated on the cover of a battery, i.e., 3S Lipo is 11.1 volts(3 x 3.7 volts). But when you measure the actual voltage of a fully charged battery each cell is right at 4.2 volts. Why isn't the 4.2 actual voltage used in all the calculations?
how much runtime will i get from a 4400mah on 30c 6.6volt average use for servos .
watching the video made me feel like i was back in school, in one ear and out the other .
Thank god i found this video. I wanted to scratch build some models but i realized i just didnt know enough about rc plane electronics and batteries were one of the topics i was fuzzy on.
Wot ho Bruce, Thanks for the Vid, I have two Batteries 2200mah lipos for the Blenheim which I am in the throws of building I have "all the gear and no Idea" electric is not my bag. The batteries have been charged buy Moi, not knowing of the long term affect.. On the charger which I purchased it has a discharge setting , Now my question is How does one use this or can this setting be used for the discharge of Lipos. Hugh
No mention of cold storage?
I did not see any recommendation about suitable chargers although charge rate is well covered.
How do you know what connectors advertised batteries have?
Thanks 78E. I recently bought a iCharger 4010 Duo and I see what you mean. Only, does the 1S cells need to be storaged on 3.7 somewhat Volts? like the 2, 3 and so one cells? Or is that only necesary with batteries with more than one cells?
I sometimes charge a bunch of batteries the night before... then the next day, the weather turns to crap and crap for several days after that. I'm wondering how long I should keep them at a full charge before they get damaged. I heard at AllThingsThatFly you shouldn't keep them charged for more than a week. What say you Bruce?
This may have been asked already but here it is anyway. Someone told me that storing ur lipos in the refrigerator. That this would virtually stop any discharge. What do you think?
Very good video, informative and erm.... energetic speech, that stops me from nodding at my computer screen when learning about these particular technological subjects. A skill that is very sparse. Thank you :)
Thank you. As usual, extremely helpful for people getting acquainted with this technology. Appreciated!
The "S" means the cells are connected in Series. ie. 2 cells in series + 2S = 7.4V :)
Very right question, it is because the capacity is actually not 1 amps as Bruce says, the capacity is 1 amp-HOUR.
Energy capacity should really be stated in its proper unit joule or alternatively in watt-hour. Using ampere-hour as a capacity indication complete forgets that the voltage (LiPo cell count) also have to be included to calculate the energy in the battery pack.
Boss can u put a video on matching esc,battery,motor,propeller.
How to program an esc with Tx
i seen all the reviews on Utube YOU GIVE THE HOLE ENCHILADA .I MEAN YOUR THE BEST GUY ON R.C. THANK YOU ..
thnaks for video have question why some lipo battery like 3.7v when we charge them they go over heat puff but other battery the same voltage and work fine
Thanks Bruce ! Very informative and well done sir ! I'm a noob and need to learn so much my head hurts. I haven't yet bought my first transmitter and receiver and ESC and servos, etc. etc. etc. Not to mention my first ARF ! But in any case you are a Gentleman and a Scolar.
Great video Bruce! How about an unbiased test of all those brands?
Thank you very much Bruce, you've helped me and two other friends (at least) to take care and understand our batteries much better.
I wish you had talked about the wires coming out of the various batteries. The large black and red wires are obvious but the other set of wires. What are those for?
S stands for "Series". The cells are arranged in series, which is a configuration approach.
Thank you for a very educational video. One question however, I fly also small hrlicopters like the WL V911 on 1 cell batteries, 3.7 Volts. How do you store those kind of batteries? And how do you measure that voltage, there is no charger with 2 leads connector except for the ones with the heli pack and those are very simple.
Thank you, Willem
Did an esc built in with a over discharge limiter in it? If it's not what would happened if the current goes below the recommend when the battery is in the sky??
I was given one of the little lipo cell testers and had no idea it could alert me when I was running low. It'll now be flying every time am out.
Anyone know where's the upcoming video he talks about? Where he was going to talk about matching your batteries with your motors, escs and props. I can't find it.
Well great job, where can I find one like your's? I have look at 4 or 5 but they are out of stock and do not have every thing on them like your's. so can you help a old man out? Have a great day!
Nice job, I am just getting into using lipos and this video was a great learning tool. I will definitely be buying a few more battery testing devices . Thanks
Nice video, just one complaint: The capacity of the battery is rated in ampere hours, not in ampere as you say in the beginning. Ampere is a unit for a momentary current, ampere hours is current over time, which is capacity.
Hi Xjet - you may remember me from our exchange of puns regarding the power-lines on the park video of yours :P Quick question regarding this charger business: I have a Fusion Ethos LX41B Pro. It only charges, however - no discharging. I'm thinking this discharge/storage voltage stuff has gotta be important so wud u recommend getting the Turnigy or similar despite me already having the Ethos? Thanks
Hey Bruce. I don't suppose that my Accucell 6 is putting the energy back into my charging battery as it reduces the Lipo cells to storage level is it? Seems unlikely.
By the way, the mAh means milliamp-hours, which is how much charge the battery holds. Great video!
Those batteries you mention are only one cell, and as there is no other cell to balance it with, there is no need for a balancing connector. If you use an Imax type charger (or more or less any other for that fact) just connect it to the main charge port (red to positive, black to negative) and charge as a 1S battery. Measuring the voltage is just between the positive and the negative, the same as "per cell" method on the multicell batteries.
Every cell is 4.2 volts. The voltage of the whole batteries depends on how many cells are set up in series.
How do LiFe batteries compare to LiPo? Can I use something like the Turnigy nano-tech 1700mAh 2S1P 20~40C LiFePo4 Receiver Pack in lieu of a LiPo?
dang.. now i know why basically all my lipo's are puffy.. i havent discharged them enough when flying, and i have allways left them after flying for the day.. so all batteries are probably about 20-30% used... and i have allways charged at 2 amps.. but i dont think i own a less than 2 amp battery... can a puffy battery explode on me when flying, or will the cells show different voltages before i get to a critical point in a batterys life?
Question? For Arrma Kraton Blx would it be better to run on 2 - 3s lipo or 1 6s lipo battery? Thanks
after flight can we charge batteries when their voltage drops to 3.8 like that or else i need to drain fully upto 3.5 by flying for more time like that for better life of batteries.
Cool video, gives me some insight to hobby batteries. It would be nice to see one on charging and discharging also battery charger selection. If possible.
Hey Bruce, great videos! I've learned more about RC from your videos and site than the rest of the internet combined (last week I finally donated $50, which is way less than I owe you for all your great videos)! Anyway, have you ever considered doing an "All About" video covering brushless motors? That's the one area that I still find massively confusing about electric RC -- I'm lost as to when to use high vs. low kv motors, when to use inrunners vs outrunners, and the myriad tech specs!
I can't find your video on battery, esc, and propeller matching!
Tell me about using Lipo used on Land Vehicles? Brushless vs Brushed vehicles.
Help.... Thanks,
Thank you so much for your videos - I have learned so much! I am really looking forward tot he videos on ESC's and such. What has me stymied is the relationship between kV rating, prop size and wattage. I find myself just trusting others trial & error and experiences, but I know there must be a more logical process for selecting and matching prop/motor/ESC's and batteries beyond, 'It worked, moved and didn't burn up...'
Thanks!!
if you charge a lipo at a high amount of amps will it affect the flight time?
so if i have 2 11000mah batteries that are both rated for 5c charging what would i be charging the battery at if there in parallel
Brilliant video! You made it so easy to understand batteries.
is there any way to test if a lipo charger is working properley without actually having a battery? my lipos caught fire while charging (was actually my fault, batteries were swollen and had a broken balance cable). i bought new batteries but dont know if the charger still works, and am afraid to connect the new batteries to the charger
you store it at the same voltage as you would the individual cells of any other battery
Thanks for the video Bruce. I have always wondered: If a pack has a capacity of 1 amp, how can it deliver 25 amps for an extended period of time?
Hello Bruce
I watch all your vids and its great stuff and i found this tidbit really useful
keep up the good work
You say to store at 3.8 volts. Could you please tell me what is considered to be low voltage.
I`m a bit confused. I never make the call on the C charge rate on my lipo packs. I plug them into my balance charger and it does the rest. A 3S pack usually takes 65 minutes to fully charge no matter the mah size. If i have a 1300 mah lipo, i will choose 1.3 amp charge, does this mean i charge the pack at 1 amp? What am i missing?
Love this tuturial .. You are a great teacher. Good tips ! Thank you.
I chared my battery to go fly. 3S 1.3, 15c.and a couple of larger batteries.
Didn't get out to fly and now have 4 batteries fully charged. To get them to storage charge using a 4 button charger do I need to discharge first then storage charge after, or just program to storage charge only?
Great vid, do you have a video about matching brushless to prop esc & lipo???
Kabala FPV said in one of his videos someone told him they only go up to 70c max no matter what number a manufacturer stamps on them that might be higher, is that true?
can you charge/discharge through the balance lead, just curious I noticed the battery/charger that came with my Runner 250 advanced. it seemed to be doing just that, except for the discharge I'm guessing.
Hi , If my ESC draw 15Amps and the motors says Standard Current : 15-25A Max Current : 30A,
so what quantity of amps does the motor and the ESC will draw from the battery?
And i have a quadcopter, with 4 ESC and 4 motors, do i have to multiply the current from each, times the quantity of motors to compute the quantity of current (amps) that all the system will draw from the battery?
Thanks for your time and amazing videos
Fernando Calatayud Zepeda First of all, your ESCs don't draw 15A, they can handle up to 15A when your motors draw from the battery and the max current for the motors is just a guide for you to not push them past that amount of Amps...
Second, you need to either do a test on your motors to see how many Amps one of your motors pull at full throttle with the Voltage (Cell size) and prop size you want to use, if that's not possible, you can google to find out from other people's tests, but that's not as accurate...
Once you know your max Amp draw, you can then calculate the C-rating you need... You take the max Amps your motor draws with the setup you want, let's say it's 10Amps, multiply it by the amount of motors you will use (4 motors = 40Amps) and then divide it by the capacity of your battery... Let's say you're using a 1.3Ah (1300mAh) battery, it would be 40/1.3, so you would need a battery with a C-rating above 30.77, so a C-rating of 35 would be the best to use...
Optamizm Damn, thanks a lot for the time i understand it very well now.
Fernando Calatayud Zepeda No worries :)
can i get a link to both those items the battery alert thingy and the other battery meter thing.
Does the internal resistance of the batteries dictate their C-rating?
Sir I have a question
Can u mix lipro batterys, that are of the same voltage but different ratings assuming I dont drain below the lowest c rated battery
My hook up is a serious connection, I have two 18.5v
Batterys in serious, one is a 5000ma the other is a 6000ma
Also could they be done in a parallel combo if that was all I had
I do understand it's best to have two the same, but would it work ok?
So where did you buy this Battery Balancer & Watt Meter?
I can't find your videos on determining Lipo battery size for models based on motor and ESC Would you provide a link??
Can i charge one of this batteries while it is powering another thing?
Nobody explains it better!!! Thanks
Excellent video. I am looking at charging up to 4 Lipos at the same time, to cut down on charge time. Could you suggest the best charger for this please? (2200mah, 11.1 volt, 3s)
depends on size of motor and how much you push rc car and/or plane
where can I find the explanation for matching the electronics to the models. What's the vid called or a link would be helpful.
I don't believe 3 guys didn't like this video, Bruce is great!!!!!!!!!!
Amps and milliamps are standard electrical units. However, what you were talking there was Amps over Volts or Amp / Hours
I have a 4s,14.8v,3200 lipo for my t-28. my charger does not have a discharge mode. how can I get to storage voltage other than just running the motor on the ground? heat in the motor would be bad, would it not.
great vids, always very helpful.
what would you say is the most accurate, a battery balance/watt meter or balance charger. Why I ask is after a balance charge if I connect to my balance/watt meter to check it always says its out and gives alarm tone. I then balance with this meter but it all takes extra time. Both are overlander make the charger is RC-6s AC pro balance charger. Thanks
Hi, what is the brand and name of the first black battery balancer that you use in the video?
Thanks
Does C stand for capacity . The unit of it is Ah or mAh , not just Amps.
You talk about a video on choosing battery for specific models, but I am not able to find it on your channel.
999
what volt does traxxas low voltage mode stop it at
Since voltage x amps = watts (power), am I right to believe that a 3s 4000mah, 45c lipo would generate more power than a 3s 2200mah, 45c?
Great video!! Helped me learn about LiPo batteries before I got my battery!
Hey! I'm trying to find the right battery for my 2007 Kyosho Twin Storm 800 and I have no clue what should I do..
I'm about to start pike fishing with the boat and I need a battery that lasts long and it doesn't even need to go fast.
The boat needs 2x 7.2v lipos and I've been watching Traxxas 7.4v 30C 5200mAh 2S LiPo. Should I use this one with my Kyosho Twin Storm 800(2 motors)
and again a great lesson.
thanks to you i'm flying with a axn.
And still flying the Mikeys RC trainer plane.
I really love to fly that plane
say if I had two mah batteries and one had 25c and the other one had 70c would the 70c one make my rc go faster?