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Battery reserve capacity

Posted: Tue Aug 12, 2025 9:22 pm
by SalCardiff
Hi. I'm new to solar power, as of yesterday and have been perusing the app. Battery reserve capacity is set to 20%, but can be changed. The instructions say it must be higher than the system min SOC, set to 10%, so is there any reason for not setting it to 11%, please? Pros and cons?

Re: Battery reserve capacity

Posted: Tue Aug 12, 2025 9:45 pm
by Dave Foster
If you have EPS fitted (i.e. the ability to power critical loads when the grid fails), then your battery reserve should be higher than minSoC to reserve a small amount of battery power.

If you don’t have EPS fitted it should be set the same as MinSoC in which case 10% for both is perfectly normal.

Re: Battery reserve capacity

Posted: Wed Aug 13, 2025 9:27 am
by SalCardiff
Thanks very much. That's very helpful.