Electronic Auxiliary Battery Switch
UNCONTROLLED DOCUMENT
All information is provided by manufacturer
Updated 9/27/11
www.waytekwire.com
Phone
I
800.328.2724
I
952.949.0765
Fax
I
800.858.0319
I
952.949.0965
Stock No.
Max Current
Type A
Mounting
44410
100
44411
150
44412
175
44413
200
I
ntroduction
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, over temperature,
and under-voltage sensing.
The basic operating principles are simple. The auxiliary battery is charged from the chassis battery and alternator while
the chassis battery is protected from auxiliary battery load discharge. As the ABS is bidirectional, a charging device such
as a battery charger or genset connected to the auxiliary battery can also supply charging current to the chassis battery.
The ABS switch accomplishes this through the voltage and current monitoring capabilities of its microprocessor
controller. The proper time to transfer power between the chassis battery and the auxiliary battery is based on a
proprietary algorithm that utilizes both battery voltage and current measurements. A “boost start” feature is provided that
will allow the auxiliary battery to supply current to the chassis battery to aid engine starting.
The ABS switch capacity is determined by calculating the maximum alternator output current less the minimum chassis
load current. InPower’s ABS Auxiliary Battery Switches are available in 100, 150, 175 and 200 amp models.
Type A Mounting: Aluminum plate 0.125”x16”x16” or larger
Type B Mounting: wood, plastic or free air
