InPower Solid State Smart Auxiliary Battery Switch - 300 Amp, 12VDC
Advanced Bidirectional Battery Switching with Solid-State Reliability
InPower’s ABS3 Series Auxiliary Battery Switches provide a smart, reliable solution for managing power between a vehicle’s chassis and auxiliary batteries. These switches charge the auxiliary battery from the chassis battery and alternator while protecting the chassis battery from auxiliary load discharge. Thanks to their bidirectional design, any charging source connected to the auxiliary battery—such as a battery charger or genset—can also charge the chassis battery. Replacing outdated battery isolators and mechanical separators, the ABS3 leverages patented solid-state contactor and Cool Terminal technology. Advanced microprocessor algorithms monitor over-current, over-voltage, under-voltage, and over-temperature conditions, while LoadLogic technology compensates for initial surge currents and accurately detects dead short faults for superior protection and performance.
- Rated 300 Amps, 12V DC
- Available in a 4 lug option only
- Ideal solution for charging and isolating an auxiliary battery from a vehicle’s chassis battery and alternator
- Bidirectional charging (auxiliary battery charger can also charge chassis battery)
- Solid-state contactor (No moving parts) technology with microprocessor control for over-current, over-voltage, under-voltage, and over-temperature protection
- LED Indicator - Switch Status (On/Off)
- LoadLogic technology - Compensates for different loads (load startup and faults)
- Boost start the vehicle from the auxiliary battery if the chassis battery voltage is low
- Extremely efficient – No need for a massive heat sink
- Ground stud: 8-32, Boost stud: 8-32 4-5 Inch Pounds
- Power terminals: 3/8 – 16 Brass Bolts with Copper Washers, 10 to 15 Foot Pounds torque
- Meets IP67 Standards