Dual Pro SS4 4 Bank Battery Charger w/3 Bank B.O.S. [SS4/BOS12V3]
SKU: 26243696806

Dual Pro SS4 4 Bank Battery Charger w/3 Bank B.O.S. [SS4/BOS12V3]

Sale price$458.10 Regular price$509.00
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Description

Dual Pro SS4 4 Bank Battery Charger w/3 Bank B.O.S. [SS4/BOS12V3]SS4 4 Bank Battery Charger with 3 Bank B. O. S. This kit includes Dual Pros B. O. S. (Battery Optimization System) 12V 3 Bank (PN: BOS12V3) and Dual Pros Sportsman Series Battery Charger 40A 4 10A Banks 12V 48V (PN: SS4). 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

SS4 4 Bank Battery Charger with 3 Bank B.O.S.

This kit includes Dual Pro’s B.O.S. (Battery Optimization System) - 12V - 3-Bank (PN: BOS12V3) and Dual Pro’s Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V (PN: SS4).

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 only as good as its “weakest link”. In watercraft applications, this is further compounded when the trolling motor battery is used for peripherals and/or to assist the cranking battery.

B.O.S. actively shuttles energy as needed between batteries wired in series to ensure equal voltage before, during, and after charging.

B.O.S. keeps packs balanced, enabling maximum performance, and quadruple run time on the water.

Premature battery failure due to an unbalanced pack has been, unfortunately, accepted as the ‘norm’ for decades. The B.O.S. answers this call with a BSAP-24 algorithm that can accurately predict and select the battery that needs additional energy to match the other batteries within the pack. This simultaneously and successfully extends the life of each battery in the pack, as well as increasing run times.

Features:

  • Available in 6V, 8V, and 12V configuration
  • Up to six batteries in a series
  • Battery Selection and Prediction (BSAP-24) algorithm
  • Less than 1mA sleep mode
  • Transfer rate up to 7.5A
  • Self-powered
  • Any type of battery chemistry

Used in Any Application Where Batteries Are in Series:

  • Marine
  • Golf
  • Industrial
  • Aerial Equipment
  • Solar Power
  • Electrical Vehicles
  • Communications
  • Defense/Military

Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V

Dual Pro’s customers asked for a series of chargers that were smaller, lighter, and economically affordable. The Sportsman Series of chargers answers these needs. This line of chargers is designed for all types of battery applications. Sportsman chargers have all the safety and reliability features that have made PRO Charging Systems chargers the #1 choice of most boat manufacturers, dealers, and over 750,000 customers across the country. Advanced microprocessors and LED readings make the units even easier to use.

Battery Charging System Designed for Use On Land and in Fresh and Salt Water:

  • The “Green” Charger: Totally “Repairable” Not a Throw-Away
  • Unmatched Performance, Reliability, Safety and Quality
  • TROUBLE FREE – Just Plug It In and Forget It!
  • Join Over 750,000 of Dual Pro’s Satisfied Customers!
  • Fully Automatic and Waterproof

Features:

  • Approved for Wet Cell and AGM batteries
  • Models also available for Gelled Electrolyte batteries
  • Designed for use in fresh and saltwater
  • DeltaVolt® Intuitive Charging Technology
  • Waterproof, dependable, rugged construction
  • Independent outputs
  • Fully automatic/multi-stage charging
  • Zero spark technology
  • Battery maintenance mode
  • On-board diagnostic codes
  • Temperature-compensated
  • Advanced microprocessor controlled
  • Battery systems available: 12V – 48V
  • LED lights indicate the state of charge
  • Reverse polarity protected
  • No installation restrictions
  • FCC Parts A & B interference-compliant
  • DC charge cables = 5' AC power cord = 3'
  • Approved and meets ISO 8846 Marine standards
  • Ignition protected (US Coast Guard 33 CFR 183.410

May Be Used in Many Types of Sporting Applications Including:

  • Inland Watercraft
  • Salt Water Watercraft
  • Motorcycles
  • Golf Carts
  • Utility Vehicles

Specifications:

  • Charger Input - Voltage: 120v
  • Charger Output - Amps: 40a
  • Charger Output Voltage: 12/24/36/48v
  • Charging Banks: 4
  • Portable: No
  • Box Dimensions: 3"H x 6"W x 9"L WT: 25.9 lbs
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26243696806

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Techeira Francis
Dallas, US
★★★★★ 5
Such a great accent piece!
I’ve bought it 3 times now!! I love it so much! definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
J
Jenny
Bozeman, US
★★★★★ 5
Nice shelf option
These industrial pipe shelf brackets are a great choice if you’re going for that rustic, farmhouse look. The black iron finish looks clean and modern while still giving off that classic industrial vibe. Once installed, they feel sturdy and well-built. Perfect for holding books, décor, or heavier items when paired with solid wood planks. I like the open design because it really lets whatever you’re displaying stand out. They’re also pretty versatile and work well in different spaces like living rooms, kitchens, or home offices. Just keep in mind that this is the bracket system only, so you’ll need to supply your own wood and possibly some mounting hardware depending on your setup. Overall, they’re a stylish and functional DIY option that adds a lot of character to a space.
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Reviewed in the United States on May 1, 2026
M
Mark Roberts
San Leandro, US
★★★★★ 5
Excellent industrial shelving hardware for the price
I bought these as a housewarming-style gift for my brother-in-law, who recently finished building an extension onto his home and finally has the space for a proper office. His family’s aesthetic leans heavily toward that cottage-meets-industrial look, and these brackets fit the brief perfectly. First impressions were excellent. The iron construction feels genuinely heavy-duty, and the machining and threading are better than I expected at this price point. The finish is a clean matte black that looks sharp without feeling overly glossy or cheap. Installation is straightforward if you’re comfortable with basic wall mounting. Because these are iron pipe components, you may find yourself making tiny adjustments with micro shims to get everything perfectly level depending on your wall and stud placement. That’s not a flaw so much as the nature of pipe-style systems. Once dialed in, though, they feel very solid. The scale is also worth mentioning. These are not subtle brackets—they’re a bit of a statement piece. That’s great if you want the shelving to become part of the room’s visual identity, but it’s something to be aware of when planning the space. One thing I actually appreciate is that they don’t include the wood shelves. Bundled wood usually drives up the cost and often isn’t the species or finish you’d want anyway. This way you can choose your own boards and tailor the look to the room—which is exactly what my brother-in-law ended up doing. Overall, a very well-executed industrial shelving system: sturdy, attractive, and surprisingly refined for the price.
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Reviewed in the United States on March 8, 2026
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Verified Purchase
Michelle bullard
Phoenix, US
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
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Reviewed in the United States on February 15, 2023
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Charles Clerici
Lexington, US
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
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Reviewed in the United States on October 22, 2023

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