I just bought 2 xiaomi scooter 3's for my kids and myself to scoot around on. Thanks for the vids if i have issues with the batteries what I have learnt from you is just buy a whole new pack and pull apart the old one for the individual cells :)
Уважаемый друг! Скажите пожалуйста-в этой батарее какая ширина зазора между банками по узкой стороне? Наверно не более 2миллиметров? Значит лирина между банками 18+18+2=38миллиметров Мне это надо знать перед покупкой такой батареи для самодельного проекта. Заранее благодарен.
hello, i have a questions about cs8645 and csr usb spi. How to connect spi-en pin to csr usb spi ? Whitch pin on csr usb spi do i need to connect when im using pogo pin ? Thank you very much for your answer. Have a nice day
Hello, i commented also the third part. I opened my m365 pro 1 and the battery is a little bit different. I don't have these jumper i don't know why. Do you think i can connect wires for charging on the metallic part where you test with the multimeter?
Thanks for video, I would like to know if I can use this battery without control unit just without 3 wire (white, green and yellow I believe communication cable) for electric bike. I am not sure if you know but maybe if you come across it again or you have it around and you can try to load it shortly without control unit🙃. Thanks in advance.
Ok I see answer in repair no.3 so I can use it on its own. BTW it must be balancer. If possible I will just get rid of balancer but measuring system can load cell and cause your problem. It is in my opinion not balancing at all. I did not study those chips but I guess they balance on its own without communication and voltages measurement is independent otherwise it will balance until it is good. I had many batteries without balancer and they were after ten years the same! 2000 cycles for sure and I believe they had LG cells but maybe quality went down. I was discharging them in 10 minutes pulling 200kg. I do not believe the problem are batteries as I used some cheaper Canadian cells 8 years ago and they were balanced for well over 1200 Cycles until one cell failed. If it is problem with batteries it will be always the same cell as I build battery pack from different cells and it was always the same because I balanced every 100 cycles.
Hello there, i didn't use my scooter for several months without charge and my range shortened from 20km to 3-4 km. I checked my cell voltages and I see that 4-5 cells of my battery are not on the voltage as expected. (around 3.7 on full charge.) I'm thinking to balance it by charging every cell with using TP-4056. Is that a good way to repair it without killing it completely? Voltages on full charge. Cell 1 3.649 V Cell 2 4.11 V Cell 3 4.066 V Cell 4 3.623 V Cell 5 4.111 V Cell 6 4.117 V Cell 7 3.978 V Cell 8 4.116 V Cell 9 3.965 V Cell 10 4.115 V
no worries dude 🤘 I got you covered most likely there'll be a part 3 ... at which point I have no clue what I can do ... buuut ... that one might be interesting in any case -- I like to download the good shit off the internet -- it's rather unreliable 😂
sooorta - now 2 other packs are lagging behind less so one of them is I think the one I charged externally (& decided not to replace) I don't know ... are you also running a custom firmware ? if so - how many W are you pulling from your pack ?
@@Darieee everything is stock As far as I understand, it is useless to replace the battery with a new one. What is the best way i am not sure what to do
ye .. most phone batteries are crap unfortunately :( try charging up to only 80%, and never i heat - that should prolong the life of a battery greatly cheers ✌️
Well yes and no. Surprisingly Huawei phones take extreme care of their batteries. My Mate 20 lite still lasts 1,5 to 2 days of use after 4 years. Xiaomi scooter batteries are the same if you aren't so aggressive with them. My PRO 1 is coming uppon 4000km, cfw (speed increase but no power increase + some creature comforts). If you want more power buy a more powerfull scooter from a reputible brand ...
![XIAOMI PRO2 Battery - Repair 3 [Manual Balancing & Full Checkup]](http://i.ytimg.com/vi/lgVxqaOgDQc/mqdefault.jpg)
![XIAOMI PRO2 Battery - Repair 3 [Manual Balancing & Full Checkup]](/img/tr.png)
![XIAOMI PRO2 Battery - Repair 1 [Teardown & Cell Swap]](http://i.ytimg.com/vi/oZrjan6weCE/mqdefault.jpg)
1st intervention: th-cam.com/video/oZrjan6weCE/w-d-xo.html
2nd intervention: this
3rd intervention: th-cam.com/video/lgVxqaOgDQc/w-d-xo.html
I just bought 2 xiaomi scooter 3's for my kids and myself to scoot around on. Thanks for the vids if i have issues with the batteries what I have learnt from you is just buy a whole new pack and pull apart the old one for the individual cells :)
Great video and work 👍
Wich charger to balance this cell again? It will be ok with phone charger or?
But Will it charging 4battery in Group?
If the battery is good and the scooter does not go a long distance, what is the problem?
where can you buy that display that shows the battery capacity?
I have 4.15v on every cel pack. On the top of batery i have 41.5v. On the main supply cabel (yellow jack) it shows 3.8v . It can be gone the bms?
Loved the measuring three times part. I do this a lot when dealing with high voltage or batteries :)
ahye - my greatest enemy is indeed myself 🤣
glad to hear I'm not alone
Уважаемый друг!
Скажите пожалуйста-в этой батарее какая ширина зазора между банками по узкой стороне?
Наверно не более 2миллиметров?
Значит лирина между банками 18+18+2=38миллиметров
Мне это надо знать перед покупкой такой батареи для самодельного проекта.
Заранее благодарен.
hello, i have a questions about cs8645 and csr usb spi.
How to connect spi-en pin to csr usb spi ? Whitch pin on csr usb spi do i need to connect when im using pogo pin ?
Thank you very much for your answer.
Have a nice day
Hi. Can you Help me. I can not find bms til elscooter xiaomi pro 2. Where I can buy. Thanks
Hello, i commented also the third part. I opened my m365 pro 1 and the battery is a little bit different. I don't have these jumper i don't know why. Do you think i can connect wires for charging on the metallic part where you test with the multimeter?
yeah, they sometimes move those pads around, but, if you can't find them, anywhere where you're actually connecting DIRECTLY to the cells is good
Thanks for video, I would like to know if I can use this battery without control unit just without 3 wire (white, green and yellow I believe communication cable) for electric bike. I am not sure if you know but maybe if you come across it again or you have it around and you can try to load it shortly without control unit🙃. Thanks in advance.
Ok I see answer in repair no.3 so I can use it on its own.
BTW it must be balancer. If possible I will just get rid of balancer but measuring system can load cell and cause your problem. It is in my opinion not balancing at all. I did not study those chips but I guess they balance on its own without communication and voltages measurement is independent otherwise it will balance until it is good. I had many batteries without balancer and they were after ten years the same! 2000 cycles for sure and I believe they had LG cells but maybe quality went down. I was discharging them in 10 minutes pulling 200kg. I do not believe the problem are batteries as I used some cheaper Canadian cells 8 years ago and they were balanced for well over 1200 Cycles until one cell failed. If it is problem with batteries it will be always the same cell as I build battery pack from different cells and it was always the same because I balanced every 100 cycles.
Great videos
Great help
Full of relevant info
Hello there, i didn't use my scooter for several months without charge and my range shortened from 20km to 3-4 km.
I checked my cell voltages and I see that 4-5 cells of my battery are not on the voltage as expected. (around 3.7 on full charge.)
I'm thinking to balance it by charging every cell with using TP-4056. Is that a good way to repair it without killing it completely?
Voltages on full charge.
Cell 1 3.649 V
Cell 2 4.11 V
Cell 3 4.066 V
Cell 4 3.623 V
Cell 5 4.111 V
Cell 6 4.117 V
Cell 7 3.978 V
Cell 8 4.116 V
Cell 9 3.965 V
Cell 10 4.115 V
totally - rebalance all the banks with your 4056 and arm yourself with a few days of patience ❤️
might be a good candidate for one of the cheap active balance boards if you can't find the actual fault
sure would but .. if anything does go very wrong - there'll be a great chance of a good fire inside my wall-covered apartment 🤣🔥
Don’t ever delete these videos bro I’m only 1200k’s in to mine and everything ok running 40A but I may need this video at some point 😅
no worries dude 🤘 I got you covered
most likely there'll be a part 3 ... at which point I have no clue what I can do ... buuut ... that one might be interesting
in any case -- I like to download the good shit off the internet -- it's rather unreliable 😂
is the problem fixed? i have the same problem same battery and same bms
sooorta - now 2 other packs are lagging behind
less so
one of them is I think the one I charged externally (& decided not to replace)
I don't know ... are you also running a custom firmware ?
if so - how many W are you pulling from your pack ?
@@Darieee everything is stock As far as I understand, it is useless to replace the battery with a new one.
What is the best way i am not sure what to do
I cant get the battery out its stuck in the metal box
cut more of the silicone on the edges
XIAOMI batteries good for only 3 years max.
not so sure what to say about that - I had a client with 12 400 km, and 4 and a half years of daily riding ...
@@Darieee I mean mobile. I bought Samsung instead. Regards from Portugal.
ye .. most phone batteries are crap unfortunately :(
try charging up to only 80%, and never i heat - that should prolong the life of a battery greatly
cheers ✌️
Well yes and no. Surprisingly Huawei phones take extreme care of their batteries. My Mate 20 lite still lasts 1,5 to 2 days of use after 4 years. Xiaomi scooter batteries are the same if you aren't so aggressive with them. My PRO 1 is coming uppon 4000km, cfw (speed increase but no power increase + some creature comforts). If you want more power buy a more powerfull scooter from a reputible brand ...