My 2 x Hubble AM2s where installed in December. All running great leaving me with around 40% SOC by 8:00 in the morning. Set to run the house from 18:00 at night. 

Nothing changed in usage patterns since then but suddenly I have 25% by 8:00. 

Normally by 21:00 at night Id have 80% and that is now down to 73%. 

Any idea where to start looking? How can you check SOH without the RIOT? 

Inverter is a Sunsynk 5kw. 

here is a thread that may help you.

 

Thank you. 

Added to that. 

 

i have the same issue again with all three of mine 

1 minute ago, Morne SBR said:

i have the same issue again with all three of mine 

Pretty interesting how this issue is affecting all the batteries in a system ,this seems to point to BMS issues. When you take your batteries in for repair please ask them what the problem is and let us know what they say.

I took it in 3 weeks ago and they said it looks like the bms. Now i have the same problem again and need to pay the installer again to take off and put back.

Spoke to a friend this morning that had a system put up 2 months ago and he said by 12 o clock hes on 20% SOC also 3 x battery's 

I’ve lost 45% capacity to do date with under 100 cycles on both my batteries

Solar Assistant reports 107ah capacity for the bank and my discharge vs SOC calculations confirm this. 

My guess would be BMS issue and not dead cells  

Ticket logged. Support so far has been brilliant. 

It is a pain to get resolved but the benefit of quick turnaround time is a huge plus for me. 

Holding thumbs that this is a once off issue. 

My state of health has dropped to 60 %. Install was done end of November. 2021.

 

 

This is a real concern and you guys need to push the supplier to sort this out. It is all good and well that they give feedback and so on but one cannot send the batteries back every time there is an issue and that seems to be a lot.

This will hurt all the local battery suppliers by sending an message that we aren't able to build quality stuff.

Ah my goodness 😑

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