Dual Pro SS4 Auto 4-Bank 40A Marine Charger & 3-Bank B.O.S. System, 120V

Maximize your battery performance and extend lifespan with the Dual Pro SS4 Auto 4-Bank Battery Charger and B.O.S. (Battery Optimization System) Kit. This comprehensive solution delivers powerful, intelligent charging for marine and other demanding applications, ensuring your batteries are always balanced and ready. Engineered with advanced technology and proudly made in the USA, this kit provides unmatched reliability and safety for your power needs. Upgrade your system today for unparalleled battery health and prolonged run times.

• Dual Pro SS4 Auto 40A - 4-Bank Lithium/AGM Battery Charger (PN: SS4AUTO)
• Dual Pro B.O.S. Battery Optimization System - 12V - 3-Bank (PN: BOS12V3)

• Intelligent Charging: The SS4 Auto charger automatically detects and safely charges both Lithium and AGM batteries, employing manufacturer-validated algorithms for a complete 100% charge.
• Extended Battery Life & Run Time: The 3-Bank B.O.S. actively shuttles energy between batteries in series, keeping them balanced to increase overall strength, longevity, and enabling up to quadruple run time.
• Robust & Safe Design: Both components are waterproof and ignition-protected (US Coast Guard 33 CFR 183.410), ensuring dependable operation in harsh marine and outdoor environments.
• Advanced Balancing: Features the BSAP-24 algorithm to accurately predict and balance battery packs, preventing premature failure due to imbalance.
• High-Performance Output: The 4-bank charger delivers a total of 40 amps (10 amps per bank), ensuring efficient and rapid charging for multiple 12V batteries.
• Quality Assurance: Manufactured in the USA by Pro Charging Systems with a 3-year warranty on the SS4 Auto charger and a 2-year warranty on the B.O.S. system.

Ideal for a wide range of applications where batteries are wired in series, including marine vessels, golf carts, industrial equipment, aerial platforms, solar power systems, electric vehicles, communications, defense/military, RVs, fleet vehicles, and standby power systems.