SKU: 88194631101

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

Sale price$344.70 Regular price$383.00
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Description

Dual Pro RS4 4 Bank Battery Charger w/2 Bank B.O.S.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: 88194631101

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T. Moog
Fort Morgan, US
★★★★★ 5
Another great product from Cremo!
Style: Vintage Suede, Size: 5 Ounce (Pack of 1)
I find myself buying from this brand frequently. It started with the body wash, then a shaving razor and now this product. Everything i buy from Cremo is absolutely miles ahead of national brands. When I saw this ant it was available in Vintage Suede scent, I had to buy it. Again, I was blown away by the quality of this product. It provides a rich, luxurious lather that cleans all of your troubles away. It's smooth and feels good. This has changed my morning shower into Shower 2.0. I also love that this is a minority owned business. I know that when I buy from them, the money goes to support real people, not some corporate fat-cat. Anyway, every Cremo product I have tried so far has been nothing short of amazing, and this is no exception. I will continue looking for more of their products I dont know about and trying those as well. Thanks Cremo! You knocked it off of the reservation again with this product!
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Reviewed in the United States on March 1, 2026
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Jasmine
New York, US
★★★★★ 5
Scrubby
Style: Italian Bergamot, Size: 5 Ounce (Pack of 1)
I love that the pieces in it feel almost like it's exfoliating. It lathers well, and my skin feels clean after. The smell doesn't cling or feel cheap, it's a well rounded shuttle fragrance. Although my skin loves it, my daughter says her skin gets aittle dried out but she puts lotion in and it's fine. I have been buying this for months now, and encourage you to give this a try. Would also make a great addition to a gift basket.
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Reviewed in the United States on May 16, 2026
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Glen
Alexandria, US
★★★★★ 5
Loveeee this soap!!
Style: Vintage Suede, Size: 5 Ounce (Pack of 1)
This is a must !!! This soaps lasts like two times a normal soap, smells great and it does a LOT of suds!!
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Reviewed in the United States on May 25, 2026
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Kuhndawg
Charlottesville, US
★★★★★ 4
A nice bar of soap
Style: Palo Santo, Size: 5 Ounce (Pack of 1)
I originally picked this up because I’m a big fan of the bourbon and oak scent, and this didn’t disappoint. It smells great without being overpowering, and it sticks around just enough without feeling like cologne. The exfoliating texture is solid too. It actually works without being too rough. It also lasts a long time, which was a nice bonus.
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Reviewed in the United States on March 21, 2026
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JB
San Leandro, US
★★★★★ 5
Amazing Lather
Style: Italian Bergamot, Size: 5 Ounce (Pack of 1)
This product produces a silky smooth foamy lather effortlessly without melting-down the bar too rapidly. I think it's somewhat unique in this way. Smell is there but not overly aggressive, not overly drying either but effectively cuts body oils. Will buy again again for sure.
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Reviewed in the United States on March 22, 2026

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