SKU: 37543717290

Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S. [RS4/BOS12V3]

Sale price$226.80 Regular price$252.00
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Description

Dual Pro RS4 4 Bank Battery Charger w/3 Bank B.O.S. [RS4/BOS12V3]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 Pro’s B.O.S. Battery Optimization System - 12V - 3-Bank (PN: BOS12V3) and Dual Pro’s 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 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: 11.65 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: 37543717290

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4.5 ★★★★★
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Verified Purchase
Lisabeth
Belleville, US
★★★★★ 5
Elevates my shower routine—luxury scent without the luxury price
I’ve been using the Cremo Palo Santo body wash for a few weeks now, and I’m genuinely impressed. The scent is rich and complex—bright cardamom, dry papyrus, and aromatic palo santo blend together to create a fragrance that’s both grounding and refreshing. It’s like a spa experience in your own shower. The formula lathers up beautifully, turning into a creamy foam that feels moisturizing without being greasy. My skin feels clean and soft afterward, not tight or dry. I appreciate that it’s designed for all skin types, and I haven’t experienced any irritation. What really stands out is the longevity of the scent. It lingers subtly on the skin, and I’ve even noticed it on my clothes the next day. It’s not overpowering, just a pleasant, masculine aroma that makes me feel put-together. For the price, this body wash offers a premium experience. It’s a great way to elevate your daily routine without splurging on high-end brands. I’ll definitely be repurchasing and exploring other scents in Cremo’s Reserve Collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2025
L
Verified Purchase
Lucy
Omaha, US
★★★★★ 5
smells luxurious
smells so luxurious. i am on my third bottle and just purchased the fragance as well as the bar soap. thats how much i love the fragance. i wills say, its really intense smell so dont recommend if you are sensitive to strong/lingering smells. leaves my skin super soft. great value for the money, honestly suprised that is not more expensive. its advertised for men but i use it too and love. definetly good for women too who like intense woody/smoky scents.
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Reviewed in the United States on December 19, 2025
W
Verified Purchase
Wanzi
Charlottesville, US
★★★★★ 4
Great Value
You are getting a lot for the money when you get this body wash. It smells great and is an overall wonderful product.
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Reviewed in the United States on March 7, 2026
E
Verified Purchase
Ehul Roscoe Davis
Carnegie, US
★★★★★ 5
Smells so good
Love this stuff! Very concentrated. A little goes a long way. Smells amazing and leaves your skin soft and smooth.
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Reviewed in the United States on April 9, 2026
C
Verified Purchase
Christopher McMakin
West Palm Beach, US
★★★★★ 5
A major upgrade from standard drugstore brands—sophisticated scent & better lather.
I have been a long-time user of standard body washes (think Old Spice, Axe, or Dove Men), but I kept seeing hype about Cremo and decided to see if it was worth the slightly higher price tag. After using the 32oz Spice & Black Vanilla for a week, I can confidently say this is a massive upgrade for your shower routine. ​Here is how it stacks up against the typical grocery store brands: ​1. The Scent is on another level: Most cheaper washes smell like generic "Sport" or "Ocean" cologne. This scent is much more complex and earthy. ​Top Notes: It starts with a sharp, spicy kick (that's the cardamom). ​Finish: It settles into a smooth, warm vanilla and tobacco scent. It smells more like a high-end department store fragrance than a soap. ​Staying Power: The scent actually lingers. If you shower in the morning, you will still catch subtle hints of the warm spices for a few hours, which pairs really well with woody colognes. ​2. Performance & Feel: The consistency is thicker than what I'm used to. You only need one solid pump to get a rich lather with a loofah. Crucially, it rinses clean without leaving that "squeaky" residue that dries out your skin, but it also doesn't leave a slick oily film like some ultra-moisturizing washes do. It hits a perfect balance. ​3. Value: The 32oz bottle is substantial. Because the gel is concentrated, I expect this bottle to last 3-4 months easily, making the cost per ounce very reasonable compared to buying smaller bottles of cheaper stuff every few weeks. ​Pros: ​Sophisticated, "grown-up" scent profile. ​High-quality pump (sturdy, doesn't clog). ​Non-drying formula is great for colder months. ​Cons: ​Potency: The scent is strong. If you are sensitive to fragrance or prefer unscented products, this might be overwhelming. The bathroom will smell like it for a good 20 minutes after you're done (which I enjoy, but keep it in mind). ​Verdict: This bridges the gap between basic hygiene and luxury grooming. If you are tired of smelling like "Blue Sport" and want something warmer and more refined for the fall/winter, this is absolutely worth the switch.
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Reviewed in the United States on November 26, 2025

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