If your cabin is Part Time use no problem discharging to 50% DOD. Part Time would be weekends and no more than 3 days before leaving at 50% DOD. Otherwise shoot for 20 to 30 %/day
But there is a catch, Batteries need a minimum charge current of C/12 and on a Trojan T-105 that is 225 AH 12 = 19 amps. That is a minimum panel wattage of 20 watts with a 20 amp MPPT controller, and 300 watt 12 volt battery panels with 20 amp PWM controller. FWIW minimum 10 AWG wire requirement at 20 amps.
A pair of Trojans T-105 have a total capacity of 2.7 Kwh, or 1.35 each.
But there is a catch, Batteries need a minimum charge current of C/12 and on a Trojan T-105 that is 225 AH 12 = 19 amps. That is a minimum panel wattage of 20 watts with a 20 amp MPPT controller, and 300 watt 12 volt battery panels with 20 amp PWM controller. FWIW minimum 10 AWG wire requirement at 20 amps.
A pair of Trojans T-105 have a total capacity of 2.7 Kwh, or 1.35 each.
Comment