ARCO Marine BI-0702 Battery Isolator - 70A - 1 Alternator, 2 Battery [BI-0702]

The Arco Marine BI-0702 is a top - notch inboard/outboard battery isolator. It can handle 1 alternator, 2 batteries, with a maximum current of 70A. This isolator is rated for 10 to 350 - amp alternators in 12, 24, or 32 - volt negative ground systems. Key features include: it's a solid - state device allowing current to flow in one direction only, so you don't have to worry about a higher - charged battery discharging into a lower - charged one. Both batteries get automatically charged according to their needs when the engine runs. When used with selector switches, there's no need to change the switch position for charging both batteries. It also proportionally distributes the alternator's output current to the batteries, regardless of the switch position. Note that it can't be used on 12 - volt charging systems with 24 - volt trolling motors or newer outboard engines with rectifier - regulator charging systems. This product can't be returned to the original purchase point. Contact the manufacturer directly for any issues.

Using the Arco Marine BI - 0702 battery isolator is easy. First, make sure your system is a 12, 24, or 32 - volt negative ground system with an alternator between 10 to 350 amps. Connect the isolator to 1 alternator and 2 batteries. Once the engine starts running, the isolator will automatically charge both batteries according to their needs. You don't need to adjust the selector switch if you're using one. Just let the isolator do its job. When it comes to maintenance, keep it clean and check the connections regularly to ensure good electrical contact. Remember, this isolator can't be used on 12 - volt charging systems with 24 - volt trolling motors or newer outboard engines with rectifier - regulator charging systems. And if you have any problems, don't return it to the place you bought it from. Instead, contact the manufacturer directly.