SKU: 89785681473

Dual Pro B.O.S. (Battery Optimization System) - 12V - 3-Bank [BOS12V3]

Sale price$138.83 Regular price$154.25
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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

Dual Pro B.O.S. (Battery Optimization System) - 12V - 3-Bank [BOS12V3]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

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 quadruples 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 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
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Quick Guide (pdf)
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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: 89785681473

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4.8 ★★★★★
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Rhonda
Bozeman, US
★★★★★ 5
Good cart.
Size: 5 Tiers (8.7"D x 39.2"H), Color: Rustic Brown + Classic Black
Very good cart. Could use better wheels, but all in all nice looking cart. Wish it came with a-hooks so you could hang pot holders or something of the like on the end b horizontal bars, but it does NOT.
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Reviewed in the United States on April 24, 2026
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Savvy Shopper
Port Orchard, US
★★★★★ 5
Nice Versatile and Strong Cart
Material Type: Three Tiers Cart
The cart looks great and fits our needs perfectly. It is very sturdy and well made. However, it took a lot longer to put together than I expected because there many parts and they have to fit together perfectly. Worth it though!
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Reviewed in the United States on November 23, 2025
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Verified Purchase
Anastasio Sarigiannis
Pawtucket, US
★★★★★ 5
Not for someone that needs step by step instructions and pre-drilled holes
Nice cart that looks good once assembled. But be warned: there are NO predrilled holes for any of the screws. You will need to build each section of the frame that attaches to each wood panel FIRST, sit it on the wood and use a electric drill or driver to put the screws into the wood. Same goes for the wheel attachments - no holes drilled for these either. So if you are someone that can't even build a piece of IKEA furniture - this is NOT for you as this will require more skill and power tools.
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Reviewed in the United States on July 28, 2021
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Amazon Customer
Waukegan, US
★★★★★ 4
Great Cart, Difficult Assembly
Material Type: Three Tiers Cart
This cart is beautiful and met our expectations. We read many reviews good and bad, so we knew what we were buying. The cart was packaged and delivered perfectly. It is very heavy so help may be needed. It took 4 hours to put together, there were no predrilled holes and some of the metal poles need to be adjusted slightly to fit correctly. The instructions were straightforward, drilling holes prior is very helpful. The wood was a darker brown and I actually liked the imperfections of the knots giving it character. Overall, I would buy this cart again. It is very pretty and will look amazing in our camp.
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Reviewed in the United States on April 1, 2025
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Pamela J Arrowood
Battle Creek, US
★★★★★ 5
Works great
Material Type: Three Tiers Cart
Easy assembly. Perfect for moving around bar area. Rolls nicely. A lot of room..
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Reviewed in the United States on March 9, 2026

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