SKU: 82960832740

Dual Pro SS4 4 Bank Battery Charger w/2 Bank B.O.S.

Sale price$496.79 Regular price$551.99
Save 10%

Pay in installments of $138.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Dual Pro SS4 4 Bank Battery Charger w/2 Bank B.O.S.SS4 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 Sportsman Series Battery Charger 40A 4 10A Banks 12V 48V (PN: SS4). 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

SS4 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 Sportsman Series Battery Charger - 40A - 4-10A-Banks - 12V-48V (PN: SS4).

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

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: 25.8 lbs

Quick Guide (pdf)
Owner's Manual (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: 82960832740

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
The Critic
Natrona Heights, US
★★★★★ 4
Vintage Castle
Garth Ennis renders one of his hectic stories with Frank Castle coming back to his origins. The first story deploys Frank's childhood and the unexpected consequences of it later on. I humbly believe the second part(The cell), is the best of this issue. It narrates the ultimate vengeance of Castle against those who took the lifes of his family, several years ago in the middle of a shooting at day light in Central Park. A mention must be done of the art in The Cell. The pencils of Lewis Larosa, the Inks & Finishes of Scott Koblish and Raúl Treviño's colors, leave nothing to desire and accomplish to portrait that classic look of Castle as a somewhat mature/old man still capable of hell when it comes to seek revenge for his family. The End, however, which puts Castle in a dystopian future of a post-nuclear bombing, fails to blend smoothly Garth Ennis' script with the caricaturesque art from Richard Corben and Lee Loughridge. There is a dissonance between this very old Frank Castle in an apocalyptic environment and the drawings that for some reason maintain a gap with previous artists. As a whole, From First to Last is totally worthy. Garth Ennis is back to team with Castle and that's all what counts. Cristián Gómez O.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2011
A
Verified Purchase
Alejandro duarte
Cuba, US
★★★★★ 5
I love the Punisher.!!
I loved it good story’s I recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
J
Verified Purchase
James N. Smith
Draper, US
★★★★★ 5
This Is the Punisher
Format: Kindle
Punisher was supposed to be just a villain of the month, but there was always something there. Marvel never quite knew what to do with him, but Frank Castle had staying power. He still doesn’t fit into the Marvel universe, and he certainly doesn’t fit into the MCU, and these stories show exactly why. This is a great character and when handled correctly you get stories that stay with you. Garth Ennis knew how to tell those stories. I hope one day someone else will come along and give us more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2025
K
Verified Purchase
Kristofer
Cuba, US
★★★★★ 5
Mandatory reading
Format: Kindle
These are great. If you're an Ennis fan, this is your book. Each story has its own style. You won't be disappointed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2024
V
Verified Purchase
vince west
Battle Creek, US
★★★★★ 5
Punisher Max From First to Last
3 hardcore stories about Punisher when he was a kid, when he gets himself sent to Rikers to get the guys most responsible for killing his family, and after a nuclear war destroys the planet. So you seem him from being around 10 years old until he's a very old and dying from radiation. There is almost nobody left alive but there is still some evil that needs to be punished.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2014

recommand products