![ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A]](https://cdn.shopify.com/s/files/1/0623/5298/2222/files/106601XL.webp?v=1747549498)
Lotz Outdoors
ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A]
- Lotz Outdoors$166.79Buy
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From Lotz Outdoors
BI-1203-3A Battery Isolator - 120A - 1 Alternator 3 BatteryThe Arco Marine BI-1203-3A is an inboard/outboard battery isolator that can handle 1 alternator 3 batteries and 120A max. Rated for use with 10 to 350-amp alternators on 12 24 or 32-volt negative ground systems. Includes exciter terminalFeatures: 1 alternator 3 batteries 120A 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.
