So a while back i got a pair of HO select batteries it took me a while to figure out the pinouts to communicate with the sunsynk but i got it working in the end.

But as with every cheapy pick and pay battery looks like the previous owner messed up the cells.
Is there anyone that can repair these batteries?

@MincePie,

That Hoselect battery looks exactly like a Hubble AM-2 casing.

EXCEPT

1) as a nice LCD screen

2) Uses LiFePo4 sells (hopefully 16 of them) vs Hubble's NMC x 13 cells

So next step would be to get the data of the battery:

1) Install latest PBMStools (search for it here on PF or google) on PC

2) get an USB -> RS232 cable

3) plug RS232 end of the cable into RS232 port of the battery. Looks like a LAN port. It's the middle port of the 5 ports on the underside of the battery.

4) Connect USB side of cable to PC USB port

5) Run BPMSTools

Your screen should look something like this:

6) Look at the Cell Voltages portion and determine what cell is misbehaving. (could be under or over voltage)

7) Review the Alarm/Protect/Fault screens to see any critical info.

If one or more cells are dying (i.e. low voltage), then at least you know which one to replace.

😎 Once you have removed these faulty cell/s, you would need to get a new/replacement cell. Should be a standard 100-110Ah LiFePo4 cell. You might just be able to get the exact dimensions, as these cells are used in many a battery pack.

They typically look like this:

They should set you back around R600-R1000, depending on source.

A word of caution: You have to be handy with tools, and have all the required safety gear/precautions in order to do this.

Don't use any Metal exposed tools inside the battery. You drop a spanner/screwdriver/bolt/nut/washer etc into the heart of the battery, BIG SPARKS will fly.

Else try and find an expert in these repairs. I'm sure they exist.

Good Luck! 

o cool thx man thats great information will give it a try thx

 

I c a few posts that the HO Select cells are not litium can anyone who have repaired these pick and pay batteries please tell me where to get the cells from and what type of cell is this? and how would i balance the battery again? I am a electrician so im good with bieng handy