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Pylontech US2000 Plus Teardown

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  • Author

Identify the cells which are unbalanced with BatteryView then manually charge those cells(2 pouches make a cell) using a 3.7v charger with 1.5A max then add it back in. Assemble the battery again and test. 

  • 1 year later...

Hello, after a month my dealer told me that Pylontech does not accept a guarantee for the swollen cells because of overvoltage... Do you have any idea where I can buy two cell packs or does anyone have two cell packs for sale?
 

Kind regards Rafa

 

edit: The last two photos are for fire safety purposes only.

IMG_9710.jpeg

IMG_9711.jpeg

IMG_9712.jpeg

IMG_9713.jpeg

IMG_9714.jpeg

IMG_9715.jpeg

Edited by rafa2

27 minutes ago, rafa2 said:

Hello, after a month my dealer told me that Pylontech does not accept a guarantee for the swollen cells because of overvoltage... Do you have any idea where I can buy two cell packs or does anyone have two cell packs for sale?
 

Kind regards Rafa

IMG_9710.jpeg

IMG_9711.jpeg

IMG_9712.jpeg

IMG_9713.jpeg

IMG_9714.jpeg

IMG_9715.jpeg

I hope I am wrong, but the bottom 2 images may suggest you going to use those damaged lithium cells as firelighters. 🤠

  • 1 month later...

Hello,

I bought two used cell blocks and I assume that the V10 block is also defective because the cells are unequal, as can be seen in the picture 0.240% this morning it was about 5%, the SOC has dropped from 47 to 6.

Should I disconnect the battery? I don't want to damage the other pylons...

photo_2024-07-31 11.51.45.jpeg

photo_2024-07-31 11.51.50.jpeg

  • 1 month later...
  • 4 weeks later...
  • 2 months later...
  • 2 weeks later...
On 2022/09/20 at 5:21 PM, sgadd32 said:

I bought 19 x Pylontech US2000 B Plus and H48050 Power Cube Batteries as Spares or Repairs. 

I have fixed 15 of them so far, but I have 3 potentially available for spare parts, (the other one i'm attempting to recover).

The boards appear to be similar in purpose across the range with the triple battery packs in each units '15s' 'battery'(being made up of 3 x 5s2p packs).

I'd think that the mosfets would be the type of ones in all cases?

I actually cut out individual cells packs, tested and rebuilt one of the 5s2p packs to make a perfect working one from the best of the salvaged cells.

On 2022/09/20 at 5:21 PM, sgadd32 said:

I bought 19 x Pylontech US2000 B Plus and H48050 Power Cube Batteries as Spares or Repairs. 

I have fixed 15 of them so far, but I have 3 potentially available for spare parts, (the other one i'm attempting to recover).

The boards appear to be similar in purpose across the range with the triple battery packs in each units '15s' 'battery'(being made up of 3 x 5s2p packs).

I'd think that the mosfets would be the type of ones in all cases?

I actually cut out individual cells packs, tested and rebuilt one of the 5s2p packs to make a perfect working one from the best of the salvaged cells.

Did you post somewhere datils on how did you rebuild the packs ? Tips ? type and temp for soldering ?etc

8 minutes ago, bogdanG said:

I have a complete 2000C dismantlement for "learning". If anyone is interested electronics and swollen cells packs available BUT in France. 

@bogdanG  i am interrested 😇

  • 2 weeks later...

Hi can anybody point me in the direction of getting these Mosfets as show . i have been trying to get the same but cannot trace the part number any ideas thanks ps in uk but will try worldwide 

  • 2 weeks later...

Good afternoon all, I have 4 US2000B that have had some damage with lightning / surge issues. Currently I need to replace the PMU, and while I'm at it, the plan is to replace the CMU as well. QUESTION: can i use the new PMU/CMU that is used in the 2000C/3000C/5000 or do i have to replace it with the individuals PMU / CMU that is the standard part numbers for the US2000B.

 

Good day, does anyone have damaged US2000/US3000 for spares. I am looking for teh SOC light board, as mine are fading. Please DM me if you have any ?

 

  • 3 months later...

hi all, I have 2 swollen us2000's and was considering replacing things to get 1 working one.

But I see there is some demand for the other spares.

Worth rather selling them here for scrap, and getting a new battery, or getting one working with the 2, and then selling what is left?

20 hours ago, vastrap said:

hi all, I have 2 swollen us2000's and was considering replacing things to get 1 working one.

But I see there is some demand for the other spares.

Worth rather selling them here for scrap, and getting a new battery, or getting one working with the 2, and then selling what is left?

Hi @vastrap If you sell components i am interested ! Contact me in PM if required 😉

Best Regards

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