I purchased this on Amazon for 15,000 yen, but I'm selling it because I won't be using it. It's unused. ◆ Control Function: Charge/Discharge Control ◆ System Voltage: 12VDC ◆ Maximum Input Voltage: 30VDC ◆ Solar Panel Input Current: 6A ◆ Load Current: 6A ◆ Charging Method: PWM ◆ Charging Voltage: Sealed; 14.1V, Unsealed; 14.4V ◆ Load Disconnect Voltage (LVD): 11.5V ◆ Load Reconnect Voltage: 12.6V ◆ Ambient Temperature Range: -40℃~+60℃ ◆ Temperature Compensation: -30mV/℃ (Built-in) ◆ Self-Consumption Current: <8mA ◆ Size: 55.5 x 153.5 x 34mm ◆ Weight: 250g