hi,iam new to solar although we have owned a totally off grid system for 3 years on a weekender. i have a small 4.2kw system with sma inverter with 16 panels. does anyone know of any issues with the sma inverters. we often we have 95% battery storage when we go to bed and 50% when we wake up. thats running fridge constantly and tv and 3 x 15watt light globes till 10.30pm. very frustrating.
we have 12 x 790ah gel batteries.
we had maintenance check up last week and advised all ok. is there a question i should be asking my solar electrician. they are saying more batteries.
thx
rgds
Mark