SKU: 96049991918

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

Sale price$513.44 Regular price$570.49
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Dual Pro SS4 Auto 4 Bank Battery Charger w/2 Bank B.O.S.SS4 Auto 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 SS4 Auto 40A 4 Bank Lithium AGM Battery Charger (PN: SS4AUTO). 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 Auto 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 SS4 Auto 40A - 4-Bank Lithium/AGM Battery Charger (PN: SS4AUTO).

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

SS4 Auto 40A - 4-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 the 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: 40a
  • Charger Output Voltage: 12/24/36/48v
  • Charging Banks: 4
  • Portable: No
  • Box Dimensions: 3"H x 6"W x 9"L WT: 25.4 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: 96049991918

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Wanda
Chelsea, US
★★★★★ 5
Best Blue Raspberry energy drink out there!!
Set name: Blue Raspberry
I've tried multiple different brands of energy drinks that have blue raspberry as a flavor. My absolute favorite was the C4 Jolly Rancher Blue Raspberry energy drink..... UNTIL I tried this one. Beats it for sure. It has such a sweet, smooth and refreshing taste and gives a solid boost to power me through my day. The price is a little high but in all honesty it's worth the money! No crash or jitters after one of these and this is coming from someone who drinks lots of caffeine every day. TL;DR absolutely worth a try!!
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Reviewed in the United States on March 22, 2026
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Sweet Tee
Dallas, US
★★★★★ 5
Great flavor and solid energy boost
Set name: Cherry Limeade
By far my favorite flavor in any energy drink. GHOST really does this one well and the Cherry Limeade tastes great compared to a lot of other energy drinks I’ve tried. Yes, it is high in caffeine, but that’s actually what I need sometimes for a real energy boost, and this one does the job without feeling overly heavy. The calorie content is also great if you’re someone who watches calories, which I appreciate. Overall, great flavor, solid energy, and one of my go-to energy drinks.
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Reviewed in the United States on April 24, 2026
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Bonnie Taylor
Lexington, US
★★★★★ 5
Compact snacks you won’t give back!
Flavor Name: Variety, Size: 29 Ounce (Pack of 1)
Super tasty! I actually didn’t realize I could get something like this since most in person stores I’ve never seen these specific combo of flavors together. I personally love the pretzels and getting them in actual lunch snack sizes for work or just to grab for a quick snack on the go is the best thing and makes my day! Perfect size to fulfill a craving and there’s plenty in there even for 2 kids or adults to take to school work or just a tasty on the go snack! Pricing was great for the size and amount of snacks you get and definitely still has that flavorful salty delicious good fish crackers taste while still being fresh and providing that perfect crunch and texture of the regular or jumbo box version.
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Reviewed in the United States on April 6, 2026
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txtink82
Louisville, US
★★★★★ 5
Perfect Grab-and-Go Snack Variety for Any Day
Flavor Name: Variety, Size: 29 Ounce (Pack of 1)
If snacks had personalities, this box would be the life of the party! The Goldfish Big Smiles Variety Pack is 1 of those rare things that live up to the "variety" promise. You get the classic cheddar (my kid's fav), the colorful ones that somehow make snack time feel more fun, and the pretzels for when you want a little crunch break from all that cheese. The individual packs are perfect for tossing into a purse, lunchbox, and keep some in the car for when the girls get out of school and they are dying for something to eat. Taste-wise - you already know what you're getting: the familiar, slightly salty, slightly cheesy comfort that somehow never gets old. The pretzels add a nice switch-up so it's not repetitive. Only downside? You'll wish the bags were bigger. Every. Time. Overall - it's a solid go-to snack that works for busy days, road trips, or just sitting on the couch pretending you'll only eat 1 pack. Would absolutely buy again (and probably hide a few packs for myself next time).
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Reviewed in the United States on April 4, 2026
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Palmetto Dan
Battle Creek, US
★★★★★ 5
Perfect variety pack of Goldfish crackers for snacking
Flavor Name: Variety, Size: 29 Ounce (Pack of 1)
Goldfish crackers are a family favorite! This variety pack is perfect with cheddar, colors, and pretzels all in individual snack packs. The 30-count box is great value and lasts a while. Perfect for kids' lunchboxes, snacks on-the-go, or just munching at home. They're always fresh and crunchy with that classic Goldfish taste. Love having the variety so there's something for everyone. These are a pantry staple in our house!
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Reviewed in the United States on January 8, 2026

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