Improving the best portable PowerPack - OmniCharge
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- เผยแพร่เมื่อ 18 เม.ย. 2019
- OmniCharge amzn.to/2IJWlUY
Replacement cells kit.com/jehu/lithium-battery-...
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8) Why not use Supercapacitors?
A. Batteries work better at this time, caps are rare and expensive devices that are very good at doing things not needed for storage systems typically.
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After couple of months, my Omnicharge didn't want to charge anymore and after carefully watching your video, I replaced the China Corp cells with the Samsung INR21700-40T cells and I'm actually getting more battery life out of the powerbank.
You should really re-upload this video and call it "how to repair your Omnicharge powerbank" 😅
How it works better ? Bms works with the samsung inr21700 40t ? Cut off voltage korrect ?
@@rupertmauthner1119 bms actually looks just for voltages
@@rupertmauthner1119 aand temperature lol
How many cells were you able to fit into the old case?
Wanna repair another one?
"Look, I know I'm always talking about batteries, but today I want to change it up."
*Proceeds to talk about a battery*
:P
****this comment**** love it
You beat me to it. Good for you for having the self awareness :P
let's talk about power packs
This video was the 1st of many I watched from start to finish. Very well made and much more detailed then other videos, something I think you should do more often. Well done.
Review turned awesome when u took it apart and showed us all the parts. Turned really cool when you switched out the batteries. cool trouble-shooting at end. More reviews and upgrades PLEASE!
Nice job, fun to watch you tear down and upgrade batteries!
Arrrrrgh!!!! This is now my favorite TH-cam Channel. I need to binge watch this weekend.
Awesome upgrade!
Thanks for the dedicated work!
Good and fast explained.
wonderful job Jehu 👍
This is a very good video. Thank you to the creator for making this and showing the dissection and replacement of the Chinese cells with better quality.
"Yeah, let me use resistor legs to connect my batteries in series, who needs nickel strips anyways."
I was going to say the exact same thing when he first started explaining that, then actually DOING it. I wouldn't trust those connections for anything!
I build my own 18650 4s1p cell packs (an other configs) for my long-distance iNav planes, an I would NEVER trust just some wire to make the connections, especially with the rapid temp. changes an altitudes that occur.
@@muttbone01 I don't understand, what's wrong with using enough wire? It's literally designed for the sole purpose of carrying electric current.
Hey Jehu. You make it look so easy replacing the batteries. Very good and neat n tidy.
Great video this is where you shine.... don't stop
Man, im addicted to watch your videos dude. Your content is gold👌🏼👌🏼
wow, you are always taking it to the next level ... and then to the level after that! great video (as always) sir
Cool video! It’s always good when replacing a battery/cells to actually test the system in use (measure current and voltage under load) then you can get a clear idea about the “real world” performance of the unit. I reckon they could be taking those cells down to 2.5V to get the extra watt-hours.
I like those bound volumes in your bookshelf. Excellent vid!!
I like all of your videos but this one is the best! Excellent video, very informative!
Totally agree.
It's a shame these companies charge top dollar for their product but fail to deliver on top components as your video just demonstrated. Thanks for the great video and keep up the good work. Hope you could do an Omni Ultimate or Goal Zero Nomad/Sherpa next time and see which company does not compromise on quality!
14:45 Yes! Someone that uses the right tool! You earned a Like for not using an soldering iron.
Video run time perfect just long enough,very interesting 10/10 keep em coming
Can't get enough of this channel. Soaking up the info...
I'm really like to watch your video which is talking about batteries, and I really learned things from these video, thank you Sir.
Very good love the upgrade!
This means with the correct equipment and now how one could renew the unit after the cells run out
About the omnicharge percentage calibration. Omnicharge instructed me to fully discharge the battery with normal use as long as the omnicharge goes to mode where it just shows the empty battery icon. After that fully charge, and then it is recalibrated to show right percentage.
ponakka will it work even after changing the cells? Are those Chips calibrated to the specific mAh of the cells?
@@wildcardtrader2671 Any update ?
Your videos are like ASMR for me. Thanks!
Enjoyed this video quite a bit.
I simply loved this video... it's probably the third time I'm watching it.. first time I focused on the battery upgrade but next two times I saw it for it's small circuitry. I would really appreciate if you could please share the circuit diagram and the components used.
To get 72 watts they've multiplied 2.9 amps times 4.15 volts which is the maximum operating voltage instead of multiplying by 3.7 volts which is the nominal voltage.
That's cheating and 9 out of 10 manufacturers do it because since one started doing it the rest followed to remain competitive in spec sheets. It is misleading and should be prohibited.
This is actually an important matter that shouldn't be overlooked. If you are a lawyer or know one interested in pursuing this, it is very possible to transform this issue into a class action. It's extremely probable that there will be jurisprudence after the class action ends and so society will have won.
A common trick of the industry! Like Tesla that only talks about maximal power whilst the standard of the industry is nominal power indications. So the 69 kW Tesla turns to a 450 kW! Normally, power output of cars is measured by DIN-norms that stipulate the power output of the car engines Bing measured during one hour! A class action should be induced against phoney Musk, the biggest liar on Earth!
@@jurivlk5433 Please point me to a car that's power output is measured during one hour of use and not a regular dyno. Talk about being out of your depth.
@@flavablame Every European car is measured after the DIN-standard or Deutsche Industrie Norm. That standard stipulates the nominal output of the engine as being during at least one continuous hour! Today, the DIN standard is the world standard. In the 70s, there were SAE-HP which were generally much higher because of measuring the pure engine, without the exhaust system, water pump, alternator, climate control and so on. That gave birth to 7.4 l engines with 300 HP SAE and 180 DIN HP! Tesla is the biggest scam ever! These shitboxes have like 69 nominal kW or 94 DIN HP output only! That explains why they are so incredibly sorry slow turtles. A car with real 700 HP would make like 370 km/h or over over 235 mph! Got it, my son???
It would be nice to have a regulation requiring the detailed calculation supporting the final wattage, like with your food ingredients or mortgage loans (lender is required to provide standardized calculations of effective interest rate, etc.). Maybe society could draft an information regulation for batteries that is like the Material Safety Data Sheet (MSDS) required for chemical products. Until we get the regulation, consumers should follow the Caveat Emptor advice and assume the worst possible calculation as above. We also have the choice of rewarding the manufacturers that provide lots of good detail by paying a premium and leaving the heavy discounters to respond with the desired information when their sales drop.
@@flavablame many cars ar limited for various reasons but mainly for safety and reliability so i would never judge an engine by the car's maximum speed ... just put the cars on dyno and that would be it ...
Great Video as always, educational
Hey awesome video for watching the process. I watched as you hot glued the thermistor onto the battery, but that may be dangerous as you aren't creating a proper thermal pathway and created an insulating barrier which will allow the temperature to reach much higher and read much lower. Usually just sticking it down with aluminum tape is the best way as it allows a more true temperature reading.
Too good man love your work
your pack looks way better then the factory one, very nice
Great vid bro🤗 cant wait till the next one.
Great video!!! Stuff like this is so inspiring!
Great video i like that you went from a review two an up grade. !!
You are a kick ass electrical engineer.
Thats what we like, no nonsens and loaded with facts!
Hi, you got the Omnicharge 20+. No one reviewed that unit as yet. It’s not available for purchase. It’s new because they introduced USB C to their Omnicharge 20.
How do you know about it? I didnt find anything on the internet about it.
@@jopi24johannes Hi... I have the omni charge 20 and it does not come with USB C.. The unit in this video is labelled Onmicharge 20+. I also didn't find it anywhere online...so I guess its a pre release model.
GuteMine24 they did communicate the + to the backers of their campaigns.
What happened to your dang spacebar
I was also surprised about qi charger, because it was dropped from production model i got.
you are good at this congrats
When disconnecting the BMS keep in mind that some of them have internal memory that stops working without electricity.
This happened to a laptop battery back with low capacity cells. I tried to exchange the dead cells by new ones which lead to bricking the battery pack (not recognized by the computer anymore). I read later that you were supposed to connect every part of battery pack to the according voltage in order to keep the BMS alive. This makes the soldering process much more complicated.
Does this apply to this powerbank?
@@johnny_123b I hope not since I'm planning on doing this, and everything went well in the video so I suppose it should be fine.
Look at that screen, it's nice. A nice little screen. So nice, the nicest screen around.
So nice
I recommend you to just take everything apart from the old case, 3D print a new one, transfer everything to the new one, add replace those with the "Tesla Panasonic cells" or LG HG2 and then enjoy longer run time.
Also you can add an XT60 connector for faster charging or even a buck/boost converter for getting a additional voltage range from 1,25v to 35v. Unfortunately you will not get the best amperage but it has a lot of use cases. I personally installed a XL6009 buck/boost module (I got 11 modules for 12,74$) and it is perfect for my use cases like powering my bicycle lights which are powered by 6 AA batteries :P
I hate AA batteries since they're really quickly drained and that's why I always replace them with a Lipo cell and my diy mini buck/boost converter
Or make it a 6s 3p pack
Hi, can you do a comparison to the Jackery Power Bar? Would be interesting to see what batteries they use.
A bunch of dead ones came into my work, thanks for helping me rebuild them!
Did it work?
@@DELTASECComputer Yes, the cells are very poor quality and don't seem to last long. Mine were locked by the facility they came from though unfortunately..
thank you for an informative video.
Great video.
That was fun. I like my Imuto model Z2 ~ 75 Wh. I got it because it could do fast charging on usb c for my nexus 6p.
Great video
Wow, just got my Omni20 last week, need to send mines to you for an upgrade
Why no real test on the device and BAK battery?
Hi Jehu.
I was one of the Omnicharge Ultimate project backer on indiegogo. After your teardown exposing they have switched from Sanyo GA to chinese bak cells with lower capacity, they quickly edited out the original specs and now it no longer says 'Samsung/LG/Panasonic cells inside'.
However, the units that are shippied and are yet to ship have printed on the battery pack 40,200mAh and 145Wh respectively, which were true if they had sticked to 3,350mAh cells. Since they switched to 2,900mAh cells the energy rating dropped to 125Wh, which makes it fall into false advertising category.
After this I performed a discharte test on my Omni Ultimate and got 75% efficiency based on 145Wh, which makes more sense if I based it on 125Wh which is what is has in reality.
I contacted indiegogo and all they had to say is to contact the campaign manager, and all omni has to explain to me is these chinese cells perform better than the originally planned ones, the Sanyo GA. Obviously a lie because both rated 3C discharge. If they really wanted to go high drain there were plenty of options available such as Samsung 30Q, Sony VTC6, LGHG2 and a lot more.
So effectively there are almost 3,000 Omni ultimate units delivered around the world with chinese cells in them, fake capacity claim, and being potentially dangerous. This is a huge issue and I hope you can help me to spread awareness of this.
15:18 thanks for resistor leg hack 🙏🙏🙏🙏🙏🙏❤❤
Loved this video. Yes let’s open this, then let’s replace it. Me like yayyyy!
Great video!
Great video…Thank you for the knowledge and the information. I wish I can upgrade mine to the better batteries. But I don’t know how.
Very interesting, many thanks from Germany :-)
Good review bro!
I love how you say battery’s
Hey... so yeah, after watching your review *cough* teardown mod video geek-fest, I decided to buy one. The link you provided is to the OmniCharge "13", a watered-down weak-arse version of the OmniCharge. I ended up finally receiving it, without USB-C or wireless charging. It's confusing as hell that they have completely different devices being called the same thing. You might want to update that link...
Idk how you can mistake these for the same-thing. The naming convention is pretty straightforward. One is called the "Omni 13", the other "Omni 20". One is meant to be more compact/portable while the other being more of a feature packed powerhouse.
You are so funny. Thanks for this upgrade video. Maybe you will start a new trend. “Upgrade your Stuff, DIY Style”. 👍👍👍😎😎😎
That was epic!
That gooey stuff is a conformal coming Jehu.
They seriously put in a lot of work and love to the circuits, though.
I have two 1st gen Omni 20s (without USB C), and one of them had a busted battery due to water damage in a horribly rainy day. Turns out the circuit not only protected frying other guys connected to it, but even managed to save itself, and came back fully functional after just a cell replacement. Best crowdfunding experience so far. You don't run into this level of overengineering these days anymore, yet they did it.
Cells obviously didn't get the love the circuit counterparts did though. They all had cell failures after about two years of use, and weren't even the highest capacity cells of the size.
How did you replace the cells? And how was your wiring done? Please let me know
I have one indiegogo pre-production model with a failed cell also. However, they were Sanyo or Pana cells, and the ones that didn't fail all load-discharge-tested to nearly new capacity so I reused them in other things. I have mine back together with new cells now. My HVDC output doesn't work, don't know if it ever did. Maybe a failed mosfet but I don't feel like tearing into it again.
I like building my own, my smallest one I have are. , 5 ah, and I have one that is 15-17 ah, depends on the cells I used can't remember the exact capacity. I'm looking into faster charging now, the power bank boards dont output the current to charge fast, I'm thinking 3-5 amps to recharge the bank.. With a high capacity, its way below 1c. Great video ,,,...
Good Stuff Sir. Unfortunately the initial cost is well above my pay grade.
Omnicharge: "we are useing 18650 Li-ion cells by Panasonic/LG chem/Samsung" ahhh okay
Probably not untrue, strictly speaking. Those offbrand cells are probably B or C binned cells from one of the big 3, just re-wrapped and re-serialized. The nicer ones get tested so the advertised capacity is accurate, the cheaper ones don't and vary wildly in performance.
So really, they should say "we are using shitty 18650 Li-ion cells by Panasonic/LG chem/Samsung that didn't pass QC".
@@jttech44 But they are lying since Omni20+ with the capacity. 6 * 2.9Ah equals 17.4Ah, not 20.4Ah.
In the old "Omni20" model they used quality cells from Sanyo (3.350mAh i think).
What reviewers aren't doing like you? "I wanna take it apart." That's why I watch your content. I am the same with everything.
ave channel has been doing it for several years,and its just as entertaining if you can understand some of what he is saying?aparantly canada has a different dialect
You should check out the Goal Zero Sherpa 100AC. Do a test and see what cells they run and see if you can improve love the vids keep it up!
I'll be downloading this video as it'll be useful when I need to change the batteries in my unit lol
Hi, I design battery pack BMS’s. By looking at this it looks like this is a 1S6P configuration (typical for power packs to get high capacity). not 6S1P configuration. The BMS they are using it very simple with a single cell protection IC for each cell (Ablic s-8261 part). I would love to get a better look at the BMS PCBA to confirm !
1S6P would be 3,6V only
Did it sync up? Let it charge and see how the percentage drops... If it charges but stays at 99 it means the capacity is just about what it's programmed to read
I'm gonna attempt this, I have this exact power pack and one or more cells has gone bad efter years of use and abuse, charging it now gets it really warm and it doesn't hold a charge as good as it used to. Great vid, tho I would've liked it to be a bit slower and more thorough 😅 but all the essential parts are shown so I think I'll manage 👍
Did it work?
Mine died too.
It looks like this has an MPPT solar controller in it. Can you verify that actually works well with the portable solar panels.
Nice video thanks
Love your informative vids as always. Quick question, what is the USB analyzer you use on this video?
Thanks for sharing lo que sabes. Deverias hacer mas videos asi. Y tambien si pudieras fabricar algo mejor que estos power banks con todas esas adaptaciones que hoy Les hacen gracias.
No before and after capacity rest?
That was the first thing that came to mind. All that effort and no data to show it improved anything.
The improvements might be weaker than you think. A reddit-user has replaced his BAK-Cells (2.900mAh) with LG M36 (3.600mAh) of his Omni Ultimate. He expected an capacity increase about 20%, but his capacity test on the DC-Out shows, that the real increase was only about 5%.
That cool putting a good 18650 battery.
Opened up a JunoJumper Pro. Similar size to your RavPower. It uses lithium polymer, not lithium ion. A lot of packs are switching as they can get WAY more power density into some weirder shapes.
Very GOOD. I need to know more about amp numbers and generator possibilities. For refrigerators, laptops that may not accept USB c, printer, air fryer, blenders and juicing machines and heaters/ AC...
Cool video
Love this video, how about doing the OmniCharge Ultimate tear down and improvement video? The battery pack interests me, it uses MR30 connector and I measure 2 different voltage of 6S. Very strange. I wonder how does it looks inside.
Hey man, I really like your videos, awesome projects you get yourself into. I also see you have a bass and a guitar, what type of music do you play? also, I'm sure you've put together your own amps, it kinda reminds me when I was in engineering school. Take care bud!
Just a note. I've got a brand new 200 mile Nissan Leaf in the shop with a 40kw Battery pack and a bad cell. The pack is now disassembled and we are waiting on Nissan to send a part so we can charge it before reassembling the whole pack
In the mean time try making your own pack
@@venkatperla I wold love to but this car is under warranty and the bad part has to go back to Nissan :(
Jehu...thanks for opening our eyes and improving our lives,our world thirst for renewable affordable energy
Also, I think you should look at making usb and AC module that you can plug directly into one of your 18650 holders. You could have interchangeable modules such LED or boost / buck module.... that would be to cool.
Thanks!
Why didn't you test the BAK cells for capacity and quantify the result?
Should do a before and after discharge test to show the actual results.
fantastic
I'm doing a review, now I want to tear it apart. Jehu going full ... AvE (BOLTR)!
You're awesome all for the sake of a video and then laughs 😆😂😂🤣🤣🤣
I only buy battery packs with square cells now. stacked flat pads have more volume for storage medium
Is that inverter a "Modified Sine" or "Pure Sine" it could make a difference depending on what you want to plug into it.
2.9 x 4.2 x 6 = 73,08 [Wh] (here magic happens ;) instead of 3.7V they count 4.2V of full battery or 4.15 IDK)
No, they have lied from the beginning. Note the information on the casing (4:38) , they said 20,400 mAh @ 3.6V (20,400 mAh / 6 = 3,400 mAh), even though the battery is 2,900 mAh.
@@bagusprasada You are right
@@Atetus94 Was about to comment the same thing....then I noticed Mr. Bagus Prasadas comment.... I I guess he is right...
Bagus Prasada is right, was about to comment his solution - literally no battery pack company ever calculated with 4,2V for the Wh - i mean NO ONE - it is always the nominal voltage at 3.6V or 3.7V - so yeah divide 20400 by 6 and there is the magic
@@bagusprasada Yes, but only since the new "Omni20+", the old one (Omni20) has built in Sanyo Cells.
The joke is, that on the Omni20+ itself there is written in big "20.400mAh@3.6V", but in the small print there is written a "Rated Capacity" of 17.400mAh. I don't understand that.
Amazing brother, I love it when you improve someone else products. I knew you could do it.
Can you improve all the products that you review?
I bet everybody that watches your videos would buy the add ons
Have a great day
You have inspired me to learn more.
Thanks
Very nice sir
I was actually surprised that the BMS did not lock up when you removed the cells, tends to happen quite often on Laptop BMSs lately...
The commercial power banks have a lot of great potential. Main problem is that you can't often daisy chain a separate power pack to keep using the inverters during recharging and stuff. So you have to keep buying entire units for extended time instead of just buying more batteries. Then like you show here, they use cheap batteries but charge you what good batteries would cost, so you are paying quite a bit for reduced performance. I think the more that people like you that keep pointing out which units are better than others will motivate them to do better in making good units for a decent price.
great vid fine job