Dual Pro RS4 4 Bank Battery Charger w/2 Bank B.O.S. [RS4/BOS12V2]
SKU: 86213379345

Dual Pro RS4 4 Bank Battery Charger w/2 Bank B.O.S. [RS4/BOS12V2]

Sale price$316.35 Regular price$351.50
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Description

Dual Pro RS4 4 Bank Battery Charger w/2 Bank B.O.S. [RS4/BOS12V2]RS4 4 Bank Battery Charger with 2 Bank B. O. S. This kit includes Dual Pros B. O. S. Battery Optimization System 12V 2 Bank (PN: BOS12V2) and Dual Pros RealPRO Series Battery Charger 24A 4 Bank (PN: RS4). B. O. S. Battery Optimization System 12V 2 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 2 Bank B.O.S.

This kit includes Dual Pro’s B.O.S. Battery Optimization System - 12V - 2-Bank (PN: BOS12V2) and Dual Pro’s RealPRO Series Battery Charger - 24A - 4-Bank (PN: RS4).

B.O.S. Battery Optimization System - 12V - 2-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 Battery’s" 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

Specifications:

  • Charging Banks: 4
  • Portable: No
  • Box Dimensions: 3"H x 6"W x 9"L WT: 11.55 lbs

Quick Guide (pdf)
Brochure (pdf)
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: 86213379345

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H
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HD
Lake Worth, US
★★★★★ 5
I am never going back to other brands as long as there is marshmallow
This is best marshmallow mint flavor toothpaste. It is my daily morning toothpaste so I can go straight to drink my first cup of coffee or tea. You know what, the coffee or tea still taste like yummy coffee or delicious cha!! I am so glad I found there products. Hope they always keep marshmallow. I would really like a matching mouthwash of marshmallow mint. Oh the color is lottel pastel. It smells like candy. Its absolutely worth the price.....if you like it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
J
Verified Purchase
Jess
West Palm Beach, US
★★★★★ 4
Twice a day
Style: Bubblegum Fluoride
Took a few brushing sessions for our toddlers to not hate the bubblegum flavor. Understandable though since she's never experienced that flavor before. Teeth look clean after using, just hope that they actually are.
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Reviewed in the United States on January 24, 2026
L
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L
Waukegan, US
★★★★★ 5
Will Buy Again
My kid enjoys brushing their teeth now!
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Reviewed in the United States on May 18, 2026
E
Verified Purchase
Emilia,s honest reviews
Phoenix, US
★★★★★ 5
Taste is good
Style: Strawberry Fluoride-Free
I love it
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Reviewed in the United States on April 13, 2026
R
Verified Purchase
Roxanne
Fort Morgan, US
★★★★★ 3
Misleading Advertising and Flavor Discrepancy
I recently tried this toothpaste, and I have to say that my experience left me with mixed feelings. The product claims to be suitable for ages 2+, but the bottle itself states "ages 3+," which is a clear discrepancy that could mislead parents. One of the most disappointing aspects of this toothpaste is its flavor. Despite being marketed as "Marshmallow Sparkle," it does not taste like marshmallows at all. Instead, it has a sweet mint flavor, which may not be well-received by children who were expecting a marshmallow taste. This flavor discrepancy can lead to confusion and disappointment for both parents and kids. On a positive note, the toothpaste is fluoride-based, which is essential for cavity prevention. It is also vegan and dye-free, making it a safer option for kids. However, the misleading age recommendation and the flavor mismatch are significant drawbacks that should be addressed by the manufacturer.
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Reviewed in the United States on September 26, 2023

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