12V, 140A, 13.3V cut-in voltage, 12.8V cut-out voltage; Package includes all components needed for complete installation Working Voltage: Features a voltage-sensitive chip that cuts in at 13.3 volts and cuts out at 12.8 volts to ensure the primary battery remains charged for vehicle operation Function: Acts as two separate power sources; the dual battery isolator kit allows accessories to run from a secondary battery when the engine is off, while preserving the main battery for starting the vehicle Compatibility: Compact design suitable for various applications including ATV, UTV, boats, RVs, marine vehicles, trucks, and caravans Color: Black Material: Plastic + Aluminum Size: 7 x 7 x 5.3 cm Package Contents: 1 x Battery Isolator Note: Other items not included. Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3 cm