Dual Pro SS4AUTO/BOS12V2 4-Bank Battery Charger with 2-Bank BOS System

The Dual Pro SS4AUTO/BOS12V2 is a complete battery management solution that combines a 40-amp 4-bank intelligent charger with a 2-bank Battery Optimization System (B.O.S.). This professional-grade kit includes both the SS4 Auto charger and the BOS12V2 module, delivering advanced charging and battery balancing technology for marine, RV, and industrial applications.

SS4 Auto 4-Bank Charger - AutoProfile Technology:

• Automatically detects and charges both Lithium and AGM batteries without manual switching
• 40-amp total output with independent charging per bank for optimal performance
• Wake-up feature restores batteries that have shut down due to low-voltage protection
• Fully automatic multi-stage charging with auto-return to charging capability
• Waterproof construction suitable for fresh and saltwater environments
• ISO 8846 Marine certified and ignition protected (USCG 33 CFR 183.410)
• FCC 15 Parts A & B compliant for electromagnetic interference
• On-board diagnostic codes for easy troubleshooting

B.O.S. Battery Optimization System - 2-Bank Module:

• BSAP-24 algorithm actively shuttles energy between series-connected batteries to maintain equal voltage
• Prevents premature battery failure caused by unbalanced battery packs
• Up to 7.5-amp transfer rate ensures optimal charge distribution
• Self-powered operation with less than 1mA sleep mode current draw
• Compatible with any battery chemistry including Lithium, AGM, flooded, and gel
• Extends battery life and maximizes runtime by keeping batteries balanced before, during, and after charging

Why Battery Balancing Matters:

In series battery configurations, individual batteries naturally drift out of balance over time. The weakest battery in the pack limits overall performance and capacity. The B.O.S. system continuously monitors and redistributes charge between batteries, ensuring the entire pack performs as a cohesive unit. This technology is particularly valuable in marine applications where trolling motor batteries also power accessories or assist starting batteries.

Applications:

Ideal for marine vessels, golf carts, RVs, solar power systems, aerial equipment, communications systems, and any application requiring multiple batteries in series configuration. The SS4 Auto's intelligent chemistry detection makes it perfect for mixed battery banks or for users transitioning from AGM to Lithium technology.

Backed by Dual Pro's 3-year warranty and decades of proven reliability in professional and sportsman applications. Simply plug it in and the system handles the rest—no manual adjustments or monitoring required.