Hi everyone I am a newbie
I have a 5kw li battery system my battery use to last about 8 hours with minimal load.
Until we had a 12 hour power outage in my area, my battery drained itself and went into sleep mode (according to the solar technician)
My battery only lasts 3h30m now on minimal load
I am told that li batteries are not proun to fault especially since nothing dramatic has happened to it physically.
I don't have BMS, where would I get that?
Why are my batteries only lasting 3h30min now ?
I have set my inverter settings to default.
With the exception of the battery stop charging voltage when grid is available which I put on 58v from 54v as default 58v is in range with the manufacturer guidelines.