InPower's ABS Series Auxiliary Battery Switch is the next generation technology for charging and isolating an auxiliary battery from a vehicle's chassis battery and alternator. The ABS uses InPower's proven patent-pending, solid-state contactor technology incorporating sophisticated microprocessor algorithms that include over-current and under-voltage sensing.
The auxiliary battery is charged from the chassis battery and alternator while the chassis battery is protected from auxiliary battery load discharge. This allows loads to be powered from the auxiliary battery without the risk of depleting energy from the chassis battery to the point that it cannot restart the engine.
The ABS Series auxiliary battery switches are bidirectional in that they can pass current from the chassis battery/alternator to the auxiliary battery and also pass current from the auxiliary battery to the chassis battery to provide a boost start to aid engine starting. The ABS-U Series are unidirectional and only pass current from the chassis battery/alternator to the auxiliary battery. The auxiliary battery switch products are available in 100, 150, 175 and 200 amp models.
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