... 10A solar charge controllerBattery12V 80Ah, two gel cell deep cycle batteriesWorking Time8 hours/day, 3 ~ 4 cloudy ... feet, 20 feet, 23 feetBatteryGel cell deep cycle battery or standard deep cycle battery, 80Ah, 100Ah, 150Ah, 200AhBattery PositionUnder ground, at the foot ... and incentivesNo monthly electric billsControlled charging to prolong battery service lifeLong-life PV modules with more than ...