SKU: 55687278482

Dual Pro SS3 Auto 3 Bank Battery Charger w/2 Bank B.O.S.

Sale price$429.29 Regular price$476.99
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Dual Pro SS3 Auto 3 Bank Battery Charger w/2 Bank B.O.S.SS3 Auto 3 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 SS3 Auto 30A 3 Bank Lithium AGM Battery Charger (PN: SS3AUTO). 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

SS3 Auto 3 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 SS3 Auto 30A - 3-Bank Lithium/AGM Battery Charger (PN: SS3AUTO).

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

SS3 Auto 30A - 3-Bank Lithium/AGM Battery Charger

Latest Technology:

  • Detects if a battery is Lithium or AGM
  • Automatically charges both Lithium and AGM batteries for optimal performance
  • Fully automatic. Completely and safely charges both Lithium and AGM batteries
  • Algorithms designed and validated with battery manufacturers for a 100% charge
  • The startup feature will wake up batteries that have turned off due to low-voltage protection
  • Auto return to charging feature
  • Quickest charge times in its class
  • Unbeatable performance, reliability, safety, and quality delivered by DUAL PRO®

Features:

  • Waterproof - Use on land and in fresh and saltwater
  • TROUBLE-FREE—Just Plug It In and Forget It!
  • Independent outputs
  • Fully automatic/multi-stage charging
  • On-board diagnostic codes
  • FCC 15 Parts A & B interference compliant
  • Approved and meets ISO 8846 Marine standards
  • Ignition protected (US Coast Guard 33 CFR 183.410)
  • 3-Year Warranty

AutoProfile Intuitive Charging Technology Lithium/AGM

Professional and Sportsman Series chargers have set the standard in the marine industry for more than two decades, known as the safest, most reliable, and best performing chargers in the industry.

AutoProfile Intuitive Charging Technology provides flexibility for a charging system, ready for the ever-changing lithium battery technologies. No matter if users choose Lithium or AGM batteries for the boat, Dual Pro is ready to keep a boat on the water longer, enhancing battery performance and extending battery life.

Specifications:

  • Charger Input - Voltage: 120v
  • Charger Output - Amps: 30a
  • Charger Output Voltage: 12/24/36v
  • Charging Banks: 3
  • Portable: No
  • Box Dimensions: 3"H x 6"W x 9"L WT: 19.9 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: 55687278482

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Angela
Whiting, US
★★★★★ 5
Great quality, Great price
Color: 1BK/1C/1Y/1M
Excellent transfer and image quality. It really does work in an Epson Eco tank, as long as you never fill it with the Epson ink.
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Reviewed in the United States on April 25, 2026
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Sheena
Houston, US
★★★★★ 5
Love
Color: 1BK/1C/1Y/1M
Works very well. Color is on point. Worth the money. No clogs. No leaks.
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Reviewed in the United States on May 6, 2026
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Momazon
Battle Creek, US
★★★★★ 5
Great overall
Color: 1BK/1C/1Y/1M
Great price, great quality and super easy to use!
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Reviewed in the United States on April 20, 2026
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Hazel
Carnegie, US
★★★★★ 5
Easy to use vibrant colors
Color: 1BK/1C/1Y/1M
This is a great sublimation ink!! Easy to use, easy to fill my epson ecotank Great colors when heat pressing
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Reviewed in the United States on April 16, 2026
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Parks N' Tech
Natrona Heights, US
★★★★★ 5
Escaping the Cartridge Trap: How This Refillable Powerhouse Completely Supercharged My Workflow!
For as long as I have been setting up home offices, the traditional ink cartridge has been my absolute greatest nemesis. There is nothing quite as frustrating as firing up a crucial document only to be met with that dreaded, blinking low-ink warning right when you are on a tight deadline. That is exactly why bringing the white Epson EcoTank ET-2903 Wireless All-in-One Color Supertank Printer into my workspace has been an absolute breath of fresh air. Finished in a clean, minimalist white, this machine completely bypasses the antiquated, expensive cartridge ecosystem. It looks incredibly sleek and modern sitting on my desk, blending seamlessly into my setup without projecting the bulky, industrial vibe of older, traditional machines. Right out of the gate, it feels like a highly engineered, premium piece of technology designed specifically to make daily document management drastically easier and far more efficient. ​The sheer brilliance of this printer lies in its wildly innovative cartridge-free supertank architecture. Instead of swapping out tiny, expensive plastic squares every few weeks, this machine utilizes massive, front-facing ink reservoirs. Epson incredibly includes up to three years of ink right in the box, which equates to roughly eighty individual standard cartridges. Loading the ink is where the engineering truly shines; the proprietary EcoFit 522 ink bottles are uniquely keyed to their specific color slots, making it physically impossible to mix up the cyan, magenta, yellow, or black. The bottles automatically stop dispensing the exact moment the tank is full, ensuring a completely foolproof, zero-spill experience. Not only does this system save a phenomenal amount of money over the lifespan of the printer, but it also dramatically reduces the massive amount of plastic waste normally destined for landfills. Plus, being able to physically see exactly how much ink I have left at a mere glance provides unmatched peace of mind. ​When it comes to putting ink on paper, this machine is an absolute powerhouse that consistently delivers remarkably crisp, professional-grade results. It reliably pushes out sharp, highly legible black text documents at a brisk 11 pages per minute, making quick work of dense contracts, shipping labels, and lengthy reports. The color performance is equally stunning, operating at 6 pages per minute to produce vibrant, perfectly saturated graphics and incredibly high-quality photo prints. The color accuracy is truly exceptional, giving life to presentations and flyers with punchy, true-to-life tones that never look washed out. Coupled with a highly convenient 100-sheet rear paper capacity, the entire printing process is incredibly smooth and uninterrupted. I am never bogged down constantly reloading the tray, allowing me to effortlessly maintain my momentum during demanding, high-volume workdays. ​Beyond its spectacular printing capabilities, the built-in flatbed scanner and copier transform this unit into a comprehensive command center for all of my document needs. The scanner captures physical media with spectacular clarity and high-resolution detail, making the process of digitizing old tax records or preserving physical photographs incredibly easy and accurate. Navigating through all of these robust features is remarkably intuitive, thanks to the dedicated 1.44-inch color display located right on the front panel. The screen is bright, responsive, and paired with a highly logical button layout that allows me to initiate copies, execute scans, or perform quick maintenance tasks without ever having to boot up my laptop or dive into convoluted software menus. ​The wireless connectivity is the final piece of the puzzle that makes this printer an absolute joy to operate on a daily basis. Equipped with high-speed Wi-Fi 4, it establishes a rock-solid connection to my home network that never drops or wavers. The smart mobile printing functionality is incredibly seamless; I can easily select a photo or document on my smartphone while lounging in the living room and have it instantly printing in the office down the hall. It completely untethers me from the desk, offering a level of modern convenience that I simply refuse to live without. The Epson EcoTank ET-2903 is a phenomenally capable, remarkably efficient, and incredibly fun machine to use. It entirely eliminates the stress and extortionate costs of traditional printing, delivering a flawless user experience that I cannot recommend highly enough for anyone looking to seriously upgrade their productivity game.
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Reviewed in the United States on June 3, 2026

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