Explained for BEGINERS Lithium ion Battery not holding charge How to Diagnose and FIX
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- čas přidán 17. 01. 2022
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Finally a explanation a numpty like me understands.
Good work mate
You are way above the average person , most people that watch my videos don't understand anything ..
good video. TY. Will you be making a video showing the actual battery replacement process?
That's quite a clear explanation! Congrats!
Thank you
@@TheCrazyRomanian how to test it under load with multi meter?
Good work
Very good explanation great video
Thanks a lot im a newbie about repair battery it can help for me this clear video Sir Hope next video the battery of Xiaomi mi365 how to diagnose it is the same process?
Just as you can measure the voltage of individual blocks of 3 you can charge individual groups and I here would charge them to get the top bank to 3.94v each to match the lower bank. I would then put the battery on a shelf somewhere and wait a week and measure again. This will help work out if the low cells have a self-discharge problem or if they went flat because they have less capacity that the others which is terminal. The BMS will try to rebalance cells but, if you have not used the battery for a long while, self-discharge may have taken some cells so far out of balance the BMS can't fix things.Sometimes re-balancing all the cells to the same charged voltage will make the battery usable with improved range once more - for a while.
Ok. I understand that. But how do you do that? I bought a bike,and inherited a bad battery. 5 or 6 miles per charge,and that's it. How can that be fixed. I'm on a fixed income ,so I can't really afford a new battery.🤷🤷🤷
Hi. I have a lithium battery pack of 6 which puts out 7.2 volts, it charges but the charge doesn't last long only around 5 minutes,i have the same battery packs that last 20 minutes What would you suggest to do to get it back to a proper out put?
Many thanks Spike.
Nice video👍
I'm glad you liked it
thanks
How do you know how many volts are meant to be in each single battery when you test them .very helpful video thank you
Difference between weak and strong one matters more.The cells voltages are from 3V to 4,2V at full charge.
Do you consider problematic receiving new lithium ion cells at 3.44v? I received my new 21700 Samsung INR 40T3 4.000mA, 35A cells from well known european company NK.. with 3.44v. Is that too low? I've builded an 2.8 kw 24s8p battery for an electric paramotor and has a huge voltage drop at 10-17kw full throttle and it should handle it like other similar batteries. I'm trying to find out why. Thanks.
3.4V charge per cell is too low for high output applications so it is normal for the voltage spike dipping too low.. Charge it up to at least 3.6V or greater per cell.
i need help i have a bms which had low batteries,i disconnected the bms and i charged them all up to 3.7 so they are all balanced the bms gives 48v at the charge connector and 1.6v at the power connector...is the bms dead ?? or does it need reset or something i dont have 52v charger.
Reset. Connect a charger.
Good video sir, Thank you.. I have one query to ask you, i purchased some lithium ion battery that are measuring different voltages for example some of them 3.6V, 3.8 V and 4.0 can I mix all cells together in parallel connection?
They should be brought to the same voltage before connected together so you should either all charge them to the max or discharge them to bring them back to a level that is close in between
Thank you so much sir for your valuable feedback. It will help me a lot.. 🙏🙏🙏👍👍
My 48V ebike battery shows nothing on charge indicator on actual battery. When I connect battery to bike no power, when I connect wall charger to batter nothing just green light on wall charger indicator? Any suggestion to resolve this or is there a shop who works on these? I hate to toss battery as its only 2 yrs old with little run time very few hrs.
Not only does the BMS turn off the battery pack output if the batteries are out of balance, it also turns off the charging input so the battery will not take a charge. I had the same issue on a 48V pack. I did exactly what was shown here, measured the individual packs and found one that was very low. I charged the pack with a current limited bench power supply until the voltage was back in balance with the rest of the packs and the charger then started working again.
Please connection for bms 30 battery
What about a 52v samsung celled lipo battery thats not charging past 80%? Bad charger??🤔
Maybe bad BMS .. it reads wrong . How much power you got in it, This charger too as low as you can and then put it on a watt meter to charge and see how much power it can draw
@@TheCrazyRomanian changed the BMS and it didn't fully charge. Put the original one back on and it fully charged. I think its the charger. Don't have a watt meter
If we know we have a problem why has it not been fixed
use a hobby charger.no bms as charger balances every time,reads cells and uses larger BMS to even pack..mind you 48 volt not good product..36 volt or 24 volt great
my battery is 37 volt battery. The actually volt is 34 charger wont kick on. Does this mean my battery needs replaced
You have dead cells in it
Does somebody know what IS wrong with My scooter battery. One cell is full 4.2v and every other is 3.6v. itse 42v battery
And its says its full because one cell is full
How do u reset the bms
Disconnect it, then reconnect it
You need good electric knowledge to do this kind of operation or your batteries can burst in flame 🔥
No it doesn't. Sorry, but no fire, no matter how badly you want it to burn.. Those fire catching battery videos are an organized crime by the high ranking elites around the world. They put something inside the battery pack to force the fire to scare the public cause they want you to stick with the heavily taxed gasoline to maximize profit. It's very evil....
Perfect example of Reason to NOT use bms
Nonsense. The BMS did its job.
Guess your house will burn down quickly with no BMS my friend 😂
If you use average cells. They will fail. If you use a hobby charger you can stay ahead of the issue with bms DEAD IN WATER
Good batteries Run Naked
No efix explained at all. No help.
A teacher doesn't explain to you how to fix things he gives you the knowledge to fix it yourself
Can you just toss the bad cells and hook the remaining cells back together?