CSB BACK UP BATTERIES, Tested at new specs, Agm, Sealed, 12 VOLT 125 AMP ALMOST 100lb. No Maintenance, all test at full voltage and load tested, low internal resistance, These are pulled from float at 1/2 life with a 10 year design. I have sold and resold replacements, over the last16 years. .
Near Oro Valley, send phone will text address. and How many do you need.
I have complete set ups for Off Grid and RV solar , Panels, inverters, controllers, and Advice!