SKU: 27146736628

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

Sale price$161.10 Regular price$179.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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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.
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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: 27146736628

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★★★★★ 5
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Style: w/ Rope Design, Size: Pack of 2
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Reviewed in the United States on May 29, 2026
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Los Angeles, US
★★★★★ 5
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Style: w/ Rope Design, Size: Pack of 2
I recently purchased the Camco Wheel Chock with Rope (Pack of 2) for my trailer, and I couldn’t be happier! These chocks are sturdy and durable, providing excellent stability to keep my trailer securely in place, even on uneven surfaces. The attached rope makes removal so easy—no more struggling to pull them out from under the tires! They’re lightweight yet strong, and the pack of two gives me peace of mind knowing both wheels are well secured. A simple, reliable product that every RV or trailer owner should have. Highly recommend!
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Reviewed in the United States on June 10, 2025
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deb
Birmingham, US
★★★★★ 5
Blocks
Style: w/ Rope Design, Size: Pack of 2
Great item.
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Reviewed in the United States on April 21, 2026
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JustAguy
Belleville, US
★★★★★ 5
Great rv wheel chocks
Style: w/ Rope Design, Size: Pack of 2
After ten years, I finally decided to replace one pair of these. They have taken abuse through eleven camping seasons with my rv and I gave them to the new owner when selling my old trailer. I like these because I can use my orange plastic deadblow hammer to get them tight to the wheels. They are pointy so they really get under the tire and stay put. The rope handle makes them easy to pick up and move to the storage bay.
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Reviewed in the United States on May 24, 2025
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Brother Gump
Draper, US
★★★★★ 5
Excellent leveling blocks for our (heavy) Sprinter van
Size: 10.5' x 10.5", Color: Gray, Size: 10.5' x 10.5", Color: Gray
This review is for the FasTen XL 10 pack (10.5" × 10.5", 10 ea.). We have a 2024 AWD Sprinter van that's been fully converted to a Class B camper. Fully loaded, the van weighs ~ 8,650 lbs, and sits on 265-mm-wide (10.4-inches wide) BF Goodrich AT KO2 tires. The width of the tires were a driving factor in deciding to purchase the XL-sized blocks instead of the standard blocks. In addition, each wheel carries more than a ton of weight, especially in the rear. To be honest, I had my doubts about how well these plastic blocks would stand up to such loads. I am happy to report that after three weeks of daily use on both dirt and paved surfaces, these blocks have performed very well, showing no signs of cracking or deforming. While in use, the blocks sometimes appear to be bent (and possibly they are, but this could also be an illusion). Nonetheless, when stowing them, the blocks are perfectly flat and stack nicely for easy storage in the van's equipment box. Just knock off the dirt and pebbles, stack them up using the convenient handle, and you're ready to go.
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