How Long Will A 200Ah Battery Last? What Can It Run?
200 Ah to watt-hours = 200 x 12 volts = 2400Wh 80% discharged = 1920Wh 100 watts solar panel output at 4 peak sun hours = 400 watt-hours Number of 100 watt solar needed to recharge = 1920/400 = 4.8 (5) solar panels 5 solar panels of 100 watts each would be needed to recharge an 80% discharged 200Ah battery in 5 or 6 hours …