ARCO Marine BI-1603 Battery Isolator - 160A - 1 Alternator, 3 Battery [BI-1603]

The Arco Marine BI-1603 is a top - notch inboard/outboard battery isolator. It can work with 1 alternator and 3 batteries, handling a maximum of 160A. This isolator is rated for 10 to 350 - amp alternators on 12, 24, or 32 - volt negative ground systems. Key features include: it only allows current to flow in one direction, preventing high - charged batteries from discharging into low - charged ones. Both batteries get charged automatically according to their needs when the engine runs. When used with selector switches, you don't need to change the switch position for charging. It proportionally distributes the alternator's output to the batteries regardless of the switch setting. Note that it can't be used on 12 - volt charging systems with 24 - volt trolling motors or newer outboard engines having rectifier - regulator charging systems. This product can't be returned to the original store. Contact the manufacturer for any issues.

Using the Arco Marine BI - 1603 battery isolator is simple. First, make sure your system is a 12, 24, or 32 - volt negative ground system with an alternator rated between 10 to 350 amps. Connect the isolator to 1 alternator and 3 batteries as per the instructions. 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 position. However, remember that this isolator can't be used on 12 - volt charging systems with 24 - volt trolling motors or newer outboard engines having rectifier - regulator charging systems. If you face any issues, don't return it to the store. Instead, contact the manufacturer directly. For maintenance, keep it clean and check the connections regularly to ensure it functions properly.