Key Features Protects your car battery from total discharge Switches off ancillary products connected to battery Adjustable interrupting voltage This battery saver protects your car battery from total discharge by switching off consumers such as ice boxes, heaters, radios + television sets, etc. in time. It switches on again automatically after return of the normal voltage. The interrupting voltage is adjustable: approx. 10.4 - 13.3 V.Item SpecificsOperating voltage: 12 V batteryMax. switching capacity: 20 A (10 A without cooling, 20 A with additional cooling)Interrupting voltage: adjustable approx. 10.4 - 13.3 VResetting voltage: approx. 0.8 V (± 0.3 V) higher than the adjusted interrupting voltageCutoff element: power MOS transistor in the negative lineOwn current consumption: < 0.7 mA in OFF condition, < 1.6 mA in ON condition (LED lights)Dimensions: approx. 87 x 60 x 33 mm (with mounting bottom)