Bloemhof floods victom. 

Somebody asked me if this batteries is repairable.

Where do I ask?

The installers is nowhere to find.

Paul

073 ******* [redacted by Mods for your own safety. Please use a PM to disseminate your cell #]

Maybe the cells survived but the BMS is a probably fried. Cant they claim via insurance?

I would imagine that the cells may be salvageable, but not the BMS PCBs. Even if tested, water damage has a nasty way of corroding tracks and contacts in multi-layer boards, with faults only showing many months later. In a BMS application this could have quite spectacular results.   

If insured, they would belong to the insurance company in any case.

Edited March 8, 20233 yr by YellowTapemeasure

If it were mine I would stay away from any repair attempt. Even if the cells can be salvaged, I don't want LiPo batteries with faulty/damaged BMS's close to any of my property. 

those will be damaged and very risky to try and recover.

Will probably be perfectly fine.  Not sure who the Pylon agents are, but they should be able to suggest a repairer.

if they are pouch cells and not shorted then you can probably salvage the cells for small diy projects
Lots of uses for cells if you are DIY inclined.

 

Thank you for your input. With safety first in mind I will advise the owners to scrap the batteries.

@BritishRacingGreenhas savaged 2 flood damaged OG7.2 Kodak inverters & literally brought them back to life. If there is someone who's opinion I would trust on this it's his. He has also repaired blown Pylontech BMSs outside of warranty successfully so. 

What is important is if the Conformal coating was still intact & that the batteries were off at the time of the event. 

If he says the BMS is toast I can offer a replacement BMS & can offer a repair service & cell damage report. But let him take a peek first. 

1 hour ago, Steve87 said:

@BritishRacingGreenhas savaged 2 flood damaged OG7.2 Kodak inverters & literally brought them back to life. If there is someone who's opinion I would trust on this it's his. He has also repaired blown Pylontech BMSs outside of warranty successfully so. 

What is important is if the Conformal coating was still intact & that the batteries were off at the time of the event. 

Hi Steve thanks for kind words, but if one must endeavour  pulling thru a storage with this damage, I  would only attempt after someone like yourself would certify the LIFEPO4 chemistry as servicable.   

You are right, the conformal coating helps a great deal at most times.

While I am not a fan of Pylon, I do trust the integrity of the BMS safety mechanisms. 

On 2023/03/09 at 7:23 PM, BritishRacingGreen said:

While I am not a fan of Pylon, I do trust the integrity of the BMS safety mechanisms

Hi, please elaborate.What don't you like about pylontech?

 

20 hours ago, FixAMess said:

Hi, please elaborate.What don't you like about pylontech?

 

@FixAMess I certainly dont dislike Pylons, and there is a reason for it. They are reliable, best in class, defacto industry standard.  But they are expensive when it comes to matching the minimum requirement for a 5Kw inverter because of 0.5C spec. So if you require that 100A  discharge you need to start combining batteries. 2 x US3000C is not cheap. 1 x UP5000 not enough, although the latter can handle peak for a number of seconds. 

Of course when you need higher capacity anyway, the 0.5C becomes irrelavent. But not really suited for entry level 4.8kw/5kw requirements.  If I may, its not a poor man's battery. 

 

 

 

 

Edited March 14, 20233 yr by BritishRacingGreen

40 minutes ago, BritishRacingGreen said:

@FixAMess I certainly dont dislike Pylons, and there is a reason for it. They are reliable, best in class, defacto industry standard.  But they are expensive when it comes to matching the minimum requirement for a 5Kw inverter because of 0.5C spec. So if you require that 100A  discharge you need to start combining batteries. 2 x US3000C is not cheap. 1 x UP5000 not enough, although the latter can handle peak for a number of seconds. 

Of course when you need higher capacity anyway, the 0.5C becomes irrelavent. But not really suited for entry level 4.8kw/5kw requirements. 

 

 

 

 

My son in law bought a Pylon UP5000 for his Axpert MKS3. I was somwhat tongue in the cheek, but I must report that he enjoys quite a good pairing, although he manages his load comsumption very well. 

And at the price of, i think about 25k, its surprisingly very good value. 

EDIT : and  the BMS pairing with inverter charger just works out of the box. The RS485 Pylon protocol seems to be very stable in general, and i regard this as industry standard. 

Edited March 14, 20233 yr by BritishRacingGreen

Hello Pollas, Yes, if you do not have insurance, I will take on those Pylontech batteries. Even if not repairable, they could donate cells if some cells in my 2 US3000's eventually dies. I build powerwalls from recycled 18650's and also interested in experimenting with salvaging usable LFP pouch cells. PM contact detail and we can arrange logistics.

 

On 2023/03/14 at 6:06 AM, BritishRacingGreen said:

@FixAMess I certainly dont dislike Pylons, and there is a reason for it. They are reliable, best in class, defacto industry standard.  But they are expensive when it comes to matching the minimum requirement for a 5Kw inverter because of 0.5C spec. So if you require that 100A  discharge you need to start combining batteries. 2 x US3000C is not cheap. 1 x UP5000 not enough, although the latter can handle peak for a number of seconds. 

Of course when you need higher capacity anyway, the 0.5C becomes irrelavent. But not really suited for entry level 4.8kw/5kw requirements.  If I may, its not a poor man's battery. 

 

 

 

 

I am totally agree with you @BritishRacingGreen, i my case i prefer chineses LFP batteries because they use standard prismatics LFP cells that can be easily replaced in case of problems. But for the quality of the BMS....this is a good question 😬

 

Actualy i use a custom 18650 DIY powerwall, but i will migrate to LFP because the Li-Ion 18650s usage life is limited (3-4 years max) and safety reasons.

Hallo,hebt u de verdronken batterij nog?

Ik ben opzoek naar een lege kast .

Ik heb een us2000C en heb de deksel en strips die de cellen vasthoud nodig

Graag berichtje terug aub

Peter