Dual Pro SS4 Auto 4 Bank Battery Charger w/3 Bank B.O.S. [SS4AUTO/BOS12V3] Marine Hardware | Rub Rail a B-size medium-length socket arm

a B-size medium-length socket arm

High output alternators are an important part of your system for battery care

Dry running capability

4" cup depth below the deck

tinned copper conductors

Dual Pro SS4 Auto 4 Bank Battery Charger w/3 Bank B.O.S. [SS4AUTO/BOS12V3] Marine Hardware | Rub Rail a B-size medium-length socket armSS4 Auto 4 Bank Battery Charger with 3 Bank B. O. S. This kit combines Dual Pros B. O. S. Battery Optimization System 12V 3 Bank (PN: BOS12V3) and Dual Pros SS4 Auto 40A 4 Bank Lithium AGM Battery Charger (PN: SS4AUTO). B. O. S. (Battery Optimization System) 12V 3 Bank B. O. S. actively shuttles energy between batteries to keep the pack balanced, increasing battery strength and longevity. Batteries in a pack will become out of balance and the pack is