PWM 50A 40A 30A Solar Charge And Discharge Controller 12V 24V Auto LCD Solar Regulator With Dual USB Current Display ,Easy to Use

Charge 12V battery, solar panel working voltage can be between 17V and 23V; For 24V battery, solar panel working voltage can be between 36V and 46V. Please connect the inverter directly to the battery and not to the load terminal of the controller. as long as the voltage corresponds to it (but the maximum current of the board and the battery capacity should correspond). The controller will automatically Check the voltage when you connect the battery with the solar controller. Please be sure to connect the battery first (to ensure that the battery is fully charged), then connect the solar panel. When disassembling, please remove the solar panel first, then remove the battery, please connect it exactly as this order, otherwise the controller and other components probably damaged.