My 4 -12VDC
My 4 -12VDC - 280 AH batteries were fine until we left some urban dwellers in our house while we were gone. 5 days of cloudy weather and the batteries shut down,. I did not understand how to get them back up when I returned . Several folks expressed fire concerns, as did I. Finally pulled them out. Took them into town and recharged them at Shop with a regular Auto battery charger. Re- Installed now and working fine. Runs my 3,600 Sg Ft off grid house. Cheers