Dual Pro SS4 4 Bank Battery Charger w/2 Bank B.O.S.

The SS4 4 Bank Battery Charger with 2 Bank B.O.S. is an essential solution for marine enthusiasts seeking optimal battery performance and longevity. Specifically designed for marine and boating applications, this comprehensive kit ensures your vessel's power system remains balanced and reliable, providing extended run times and preventing premature battery failure.

Comprehensive Battery Management System

The kit includes Dual Pro’s B.O.S. Battery Optimization System - 12V - 2-Bank (PN: BOS12V2) and the Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V (PN: SS4). Together, these components work seamlessly to maintain balanced battery packs and ensure efficient charging tailored to marine environments.

B.O.S. Battery Optimization System - 12V - 2-Bank

The B.O.S. Battery Optimization System actively shuttles energy between batteries to maintain balance within your power pack. This ensures that each battery operates at equal voltage levels before, during, and after charging, significantly enhancing battery strength and longevity.

In marine applications, where battery packs often power everything from trolling motors to essential peripherals, maintaining balance is crucial. An unbalanced pack can lead to reduced performance and shortened battery life, but B.O.S. effectively mitigates these issues with its intelligent energy management.

Key Features:

• Available in 6V, 8V, and 12V configurations
• Supports up to six batteries in a series
• Battery Selection and Prediction (BSAP-24) algorithm for optimal energy distribution
• Low power consumption with less than 1mA sleep mode
• High transfer rate up to 7.5A
• Self-powered for ease of use
• Compatible with any battery chemistry

Applications:

• Marine and Boating
• Golf Carts
• Industrial Power Systems
• Aerial Equipment
• Solar Power Systems
• Electric Vehicles
• Communication Systems
• Defense and Military Equipment

Sportsman Series Battery Charger - 40A

The Sportsman Series Battery Charger is engineered to meet the demanding needs of marine applications. Customers requested a charger that is smaller, lighter, and more affordable without compromising on performance. The Sportsman Series delivers on all fronts, making it the preferred choice for over 750,000 satisfied customers nationwide.

Designed for versatility, the Sportsman Series is suitable for all types of battery applications, providing robust safety and reliability features that ensure trouble-free operation in both fresh and saltwater environments.

Advanced Charging Technology

Equipped with DeltaVolt® Intuitive Charging Technology and advanced microprocessors, the Sportsman Series Charger offers precise and efficient multi-stage charging. LED indicators provide real-time status of the charging process, while waterproof and rugged construction ensures durability in harsh marine conditions.

Key Features:

• Approved for Wet Cell and AGM batteries, with models available for Gelled Electrolyte batteries
• Designed for use in both fresh and saltwater environments
• DeltaVolt® Intuitive Charging Technology for efficient power management
• Waterproof and rugged construction for durability
• Independent outputs for flexible charging setups
• Fully automatic multi-stage charging process
• Zero spark technology enhances safety
• Battery maintenance mode extends battery life
• On-board diagnostic codes for easy troubleshooting
• Temperature-compensated for optimal charging in varying conditions
• Advanced microprocessor control ensures reliable performance
• Supports battery systems from 12V to 48V
• LED indicators show the state of charge at a glance
• Reverse polarity protection to safeguard against incorrect connections
• No installation restrictions, offering flexible setup options
• Complies with FCC Parts A & B interference standards
• Includes 5' DC charge cables and 3' AC power cord for convenient installation
• Meets ISO 8846 Marine standards and is ignition protected (US Coast Guard 33 CFR 183.410)

Suitable for Various Sporting Applications:

• Inland Watercraft
• Saltwater Watercraft
• Motorcycles
• Golf Carts
• Utility Vehicles

Product Specifications

Specification	Details
Charger Input Voltage	120V
Charger Output Amperage	40A
Charger Output Voltage	12V, 24V, 36V, 48V
Charging Banks	4
Portable	No
Box Dimensions	3" H x 6" W x 9" L
Weight	25.8 lbs

Additional Resources

Quick Guide (PDF)

Owner's Manual (PDF)

Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.