Hi,

I have 3 pylontech 2.4kw US2000C since June, and now the "SOC" from "master" battery it`s slower than other two. Only on discharge.
On this example, i have cherge to 100%, and they have discharging like this:

 

Anyone have this problem before?


thanks

Have you tried switching the master around, make one of the other batteries the master?

I think so. But i will try again.

Now, they are charging:

@FixAMess, i have chenged  the "master" battery to P3 and the "SOC" problem now is in P3 Pack SOC,

 

Are your battery cables attached to the inverter as follows;

Master has +ve to inverter and the negative cable comes out the bottom, so positive to inverter at top battery (master) and negative to inverter at bottom?

Cant think of why your issue persists...

Do the batteries all charge to 100%?

Hopefully somebody else will see if they can help.

 

Hi, 

yes, the batteries chage to 100%, and the connection are like you say...

I don´t have any problem since June, i think the problem is the BMS...

It´s possible make hard reset to pylon?

Hello Marco Castro,

I have the same problem with my 4 pylontech batteries. One of them drops to 0% SOC when the 3 other drop to 20-30%.

Did you manage to solve the problem ?

Thanks.

@ hentrax

I have contact pylontech support and after procedures (firmaware updates) they change my battery in warranty.

the batteries are installed at same time?

Hi @Hentrax i have contact Pylontech Support en china and after same procedures (firmware updates) i get a new battery in warranty.

Do you have install all batteries at same time?

Hello,

Yes, I bought the batteries together and installed them at the same time.
Is this the website for pylontech support?

https://en.pylontech.com.cn/

Thanks