Batteries self discharging below 20%?

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Ched
Posts: 64
Joined: Fri Feb 03, 2023 11:02 pm

Just had my system installed and noticed that although the Min SOC is set to 20% it is gradually dropping over about 4 hrs to 16% then the inverter gives it a little charge to reach 20%.
Is this normal?
Should I set min SOC to 24% to try and stop it dropping below 20% to ensure long battery life?

Thanks for any help.
Dave Foster
Posts: 820
Joined: Thu Oct 13, 2022 7:21 pm

It’s normal behaviour, the inverter takes a small amount of power off the batteries to maintain operation and often the SoC settles, when that happens the charger will come on at low power to make up the difference.
The SoC can safely go down to 10% so nothing to worry about.
Ched
Posts: 64
Joined: Fri Feb 03, 2023 11:02 pm

Dave Foster wrote: Sat Feb 18, 2023 4:33 pm It’s normal behaviour, the inverter takes a small amount of power off the batteries to maintain operation and often the SoC settles, when that happens the charger will come on at low power to make up the difference.
The SoC can safely go down to 10% so nothing to worry about.
Thanks very much for the info. I was concerned about going below 20% but if it's normal then I'm fine with that.
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