Go Power GP-PWM-30-UL Battery Charger Controller; For Use With Solar 12 Volt Battery Chargers; 30 Amp

Uses Pulse Width Modulation (PWM) Technology Unique Four Stage Charging System With Optional Equalize Setting, To Charge And Protect Your Battery Bank LCD Digital Display That Shows Solar Array Charge Current, System Battery Voltage And Battery Capacity Built-In USB Charge Port Connects Up To 600 Watts Total Charges 1 Or 2 Battery Banks For Use With Solar 12 Volt Battery Chargers 30 Amp 6 To 15.5 Volt Operating Range 4.25 Inch Width x 7.48 Inch Height x 1.38 Inch Depth Built-In USB Charge Port Bluetooth Ready