Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S.
SKU: 44893640122

Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S.

Sale price$229.53 Regular price$255.03
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S.RS4 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 RealPRO Series Battery Charger 24A 4 Bank (PN: RS4). 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

RS4 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 RealPRO Series Battery Charger - 24A - 4-Bank (PN: RS4).

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

RealPRO Series Battery Charger - 24A - 4-Bank

RealPro Series battery chargers (formerly Recreation Series) are an affordable, reliable, and safe battery charging system designed for everyday use. The system is engineered for users who need a charging system on an occasional basis and may not want or need the capabilities of a heavier-duty and higher-amperage product.

It is designed for use in many types of applications, including bass boats, runabouts, pontoon boats, other watercraft, automobiles, ATVs, golf carts, and other similar uses. The system delivers sophisticated capabilities and superior value to customers.

Battery Charging Systems Designed for Everyday Applications:


  • Affordable, reliable, and safe

  • Unmatched performance, reliability, safety, and quality

  • TROUBLE FREE Just Plug It In and Forget It!

  • Join Over 750,000 satisfied customers!

  • Wide variety of applications

  • Universal input (100-240 VAC 50/60HZ)

Features:


  • 4 bank battery charger

  • Approved for wet cell and absorbed glass mat (AGM) batteries

  • Designed for use in fresh and saltwater

  • Dependable, rugged construction, and waterproof

  • Independent outputs and fully automatic

  • Battery maintenance mode

  • Two-year warranty

  • DC charge cables = 5ft and AC power cord = 3ft

  • Approved and meets ISO 8846 marine standards

  • LED lights indicate Each Batterys state of charge

  • Reverse polarity protection and no installation restrictions

  • Ignition protected (US Coast Guard 33 CFR 183.410)

  • FCC 15 Parts A and B Interference Compliant

May Be Used in Many Types of Sporting applications, Including:


  • Bass Boats

  • Runabouts

  • Pontoons

  • Automobiles

  • ATVs

  • Golf Carts

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: 44893640122

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Amazon Customer
Chelsea, US
★★★★★ 5
Sturdy & Perfect Size
Color: Black
Love this sponge/soap holder. This is a perfect size to put scrubs, sponges, brushes and soap. Keeps your sink area clean and organized. It’s very sturdy and drains right into your sink. It also stays in place.
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Reviewed in the United States on May 8, 2026
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Lamia
Carnegie, US
★★★★★ 5
Love it
Color: Stainless Steel
The same as expected , beautiful design, perfect price and good quality.
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Reviewed in the United States on May 5, 2026
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toolloot
West Palm Beach, US
★★★★★ 5
Great find
Color: Black
I had something in my sink to hold my washcloth but didn't like how it took up sink space. This was the perfect answers and now I can hang my washcloth on this and it hangs just enough over the sink so the drips stay in the sink. Also enough room for my scrub brush and sponge. Very happy with this purchase.
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Reviewed in the United States on April 30, 2026
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MGS Va Beach
Boise, US
★★★★★ 4
Good design, but stainless color is more like chrome
Color: Stainless Steel
Quality is good and design is nice. Knocked it down one start because the stainless is actually chrome/shiny, not what we wanted but again works well and looks
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Reviewed in the United States on February 27, 2026
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Verified Purchase
Eileen
Houston, US
★★★★★ 5
Love it!
Color: Black
Love this! Perfect size and design to clean up my sink clutter.
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Reviewed in the United States on June 1, 2026

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