InPower’s 3rd generation of Auxiliary Battery Switches are a radical design that incorporates Cool Terminal Technology to run cooler than ever, in a smaller package. And InPower’s Load Logic software can handle the high inrush current demands of large resistive, capacitive, and inductive loads on the auxiliary circuit. The ABS3 provides for alternator charging of the auxiliary battery and isolation of auxiliary battery loads, preventing these loads from discharging the primary chassis battery.