... -COMDuo-battery charging solar controller For RVs, Caravans, and boatsEPIPDB-COM is two battery solar controllers with optional remote meter. Features ... Battery AH settingCharging priority settingModify parameters through four keys EPIPDB-COM series: 12/24 VOLT auto work, 10AMPS (for PV and ... (for PV and load) Duo-battery charging solar controller EPIPDB-COM