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ENGINE ACCESSORIES
 Inboard/Outboard Battery Isolators
We carry the full line of ARCO® products. Please call 1-800-327-3792 or visit lewismarine.com for a complete listing.
Battery isolators are solid-state devices which 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 being charged automatically, in proportion, to their needs, whenever the engine is running. When battery isolators are used in conjunction with selector switches, it is not necessary to change the switch position to provide for charging of both batteries. Isolators provide proportioning of the output or charging current on the alternator to the batteries as required, regardless of switch position. Rated for use with 10 to 350 amp alternators on 12, 24, or 32 volt negative ground systems.
  BI-0702
1 Alternator, 2 Batteries 70 AMP max
BI-1202-3A
1 Alternator,
2 Batteries
120 AMP max
Includes: Exciter Terminal
BI-1202
1 Alternator, 2 Batteries 120 AMP max
BI-0703
1 Alternator, 3 Batteries
70 AMP max
Battery Isolators cannot be used on 12 volt charging systems with 24 volt trolling motors or newer outboard engines with rectifier-regulator charging systems.
       BI-2703
2 Alternators, 3 Batteries 70 AMP max
BI-3203
2 Alternators, 3 Batteries 120 AMP max
     ARCO












































































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