SKU: 10664148772

Dual Pro B.O.S. Battery Optimization System - 12V - 2-Bank [BOS12V2]

$138.83 $154.25
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Dual Pro B.O.S. Battery Optimization System - 12V - 2-Bank [BOS12V2]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

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 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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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: 10664148772

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4.5 ★★★★★
Based on 12 reviews
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M
Verified Purchase
Megan
Boise, US
★★★★★ 4
Seems to work for damaged barrier (accidental damage as well as eczema and rosacea).
Size: 6.76 Ounce (Pack of 1)
SO I am currently tryign to repair a damaged skin barrier. I have both rosacea and eczema so it's nearly impossible to find a product that makes both conditions happy. I started out using the cream version of this but my face always felt dry with it. I decided to try this since a balm usually helps keep in moisture much better. I am only using a gentle cleanser and this, planning on adding in a toner at some point. At first I thought I was sent the cream again because this comes out like their cream version but as you rub it to spread, you can tell it has a thicker feel to it. It spreads easily and doesn't tug at my skin. Seems to sink in pretty quickly but it does leave a sticky film until it completely absorbs. I can feel my eyelids stick while waiting. Not sure how long it takes to fully absorb because once it does on my eyelids, I forget. But the stickiness does go away and leaves a soft texture behind. I do find some itching in places I normally get when my skin dislikes an ingredient. But I'm not sure if it's my normal or current damaged barrier. It helps with the dry feeling and I would say I only feel a slight tightness. But so far, the best moisturizer I have used. And I love that there is NO NIACINAMIDE, NO HYALURONIC ACID, no oat, no shea butter, and no cica/centella asiatica. These ingredients wreak havoc on my skin and everybody is adding this to everything. It's been so hard to find a moisturizer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025
G
Verified Purchase
GAIL SUTHERLAND
Phoenix, US
★★★★★ 5
Works quickly to calm itch
Size: 6.76 Ounce (Pack of 1)
I had an itchy outbreak on the back of my hand the day this product arrived. Perfect timing. Applied Avene and within a short time the itch calmed almost 100%. Slept through the night and this morning, the red rash is about 95% healed. So glad I bought this. Just another old age issue to deal with.
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Reviewed in the United States on May 21, 2026
M
Verified Purchase
M. Gondek
Grantham, US
★★★★★ 5
Excellent for my sensitive skin and rosacea
Another excellent product from this brand. I have type 1 rosacea on my cheeks, even when I avoid triggers (like red wine, warm weather, etc.), and very sensitive skin overall. I've been using the cicalfate serum from this brand for the sensitivity, but it didn't help the redness. After two weeks of using this twice daily, I noticed a significant difference. After a month, I had no redness unless I encountered a trigger. Even then, the intensity of the redness seemed less. I tried going without this product for a month when the first bottle ran out, and sadly, the redness started coming back within a cycle of weeks. I've got this on auto-delivery now, along with the cicalfate serum. I never want to be without it!
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Reviewed in the United States on October 29, 2025
S
Verified Purchase
Sarah
Chelsea, US
★★★★★ 5
Best moisturizer for sensitive skin
I have very sensitive skin and have tried many products over the years. This is by far the best daily moisturizer. I don’t wear makeup other than under eye concealer. This keeps my skin looking and feeling great. Not greasy. One bottle lasts about a month. I have probably bought this 10 times in the past year.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
S
Verified Purchase
Sarah
Louisville, US
★★★★★ 1
Not as good as the antirougeurs cream
I used to use the Antirougeurs cream and loved it but since they no longer make it, I had to switch. I have been using the redness expert cream for a week and it makes my face even redder. I also started to break out. The texture is good but I don’t think it works like the other cream.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026

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