Dual Pro B.O.S. 12V Two-Bank Battery Balancer

A pair of batteries connected in series can drift apart in state of charge even when the overall battery pack appears to be working normally. The Dual Pro B.O.S. two-bank system is designed to address that imbalance. It transfers energy between batteries to bring their voltages closer together. This is a battery optimization device, not a conventional AC battery charger.

The self-powered system uses the manufacturer's BSAP-24 battery-selection algorithm to decide where energy should move. Energy transfer is rated at up to 7.5 amps. The unit is designed to work during charging and operation, as well as while batteries are resting. Sleep-mode draw is stated at less than one milliamp.

For a trolling motor pack, keeping series-connected batteries better balanced can help avoid having the lowest-charge battery limit the group. Battery chemistry and installation details still need to be considered when integrating a balancing device. This version is configured for a two-bank 12V battery arrangement. Browse related battery management systems for onboard power control.

• Transfers energy between series-connected batteries
• Self-powered balancing operation
• Low-draw sleep mode
• Designed for packs affected by unequal battery use