ARCO Part #BI-0703 is rated for use with 10 to 350 amp alternators on 12, 24, or 32 volt negative ground systems.
NOTE: Battery Isolators cannot be used on 12 volt charging systems with 24 volt trolling motors or newer outboard engines that have rectifier-regulator charging systems.
1 Alternator, 3 Batteries, 70 Amp max INBOARD AND OUTBOARD BATTERY ISOLATORS are solid-state devices that allow electrical current to flow in one direction ONLY, thus permitting the alternator to be connected directly to two batteries without fear of one higher charged battery discharging into the lower charged battery.
Both batteries are always charged automatically, in proportion, to their needs whenever the engine is running.
When battery isolators are used with selector switches, it is not necessary to change the switch position to provide for charging of both batteries.
Isolators proportion the output or charging current on the alternator to the batteries as required, regardless of switch position.
