BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B

BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B
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Model: BM3B
(604)
2 stores
1 Products

Black & Decker Battery Maintainer / Trickle Charger

Product Details

The Black and Decker Battery Maintainer/Charger keeps your 6 Volt and 12 Volt batteries at optimal capacity with fully automatic, high frequency charging and reverse polarity protection. It's perfect for vehicles that only see seasonal use, including RVs, specialty vehicles, antique & classic cars, marine deep cycle batteries, motorcycles, ATVs, snowmobiles, personal watercraft and more. Keep it plugged in during the off-season, ensuring your batteries will stay topped off without ever being overcharged or damaged. It comes with two different connector sets, including battery clips and battery terminal rings. The BLACK + DECKER BM3B is also sealed for protection against moisture, dust and oil, so it's perfect for your garage, shop or shed.

Works with 6V & 12V battery systems Fully automatic high-frequency charging Reverse-polarity protection Circuit protection against overcharging or short circuit Connects to battery via clips, 12V plug & battery ring terminals Includes built-in mounting brackets & AC plug

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Last Updated: 2025-09-02 06:08:55

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$32.49
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Product Specifications

Technical Details

Manufacturer Black+Decker
Brand BLACK+DECKER
Item model number BM3B
Color Multicolor
Weight 1.35 pounds
Height 9 3/10 inches
Depth 5 1/10 inches

Additional Product Information

Product Id 38630
User Reviews and Ratings
4.2 (604 ratings)
4.2 out of 5 stars
UPC 885911216357

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BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B
Reviews: 604
app.ratings: (604)
Price:
$32.49 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on Jun 30, 2020

excellent product...works great...now have 7 of them...use as trickle charger on boat,tractor,and power lift...have performed flawlessly for over two years..

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 02, 2014

it works great so far i use it in an rv so it gets bounced around a little and as other people have said the 6/12v switch is a little loose and easy to move so i put a dot of silicone on it to hold it in place which can be removed if i ever want to use the 6volt setting i only use the 12v setting.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Apr 03, 2014

The Black and Decker maintainer is compact and versatile. Can adapt 3-different types of battery connectors. The cigarette lighter connection is most convenient for my needs. After a long winter sitting idle, now my Corvette is always ready to go.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Mar 23, 2014

I have a bass boat with 3 batteries and was getting tired of having to continuously charge these batteries. Finally, it dawn on me, why don't you just find a good battery charger & maintainer?? So, I selected the Black & Decker model. After finding them for a good price, I also found them easy to install, operate, and most important, they are doing an Excellent job of maintaining my batteries :>. I highly recommend this Battery charger/maintainer to all who want their battery life to last as long as possibly, and not spending a bundle, Thanks Black & Decker : > .

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on Feb 25, 2014

Just got it yesterday, put my weak Toyota Truck battery on it overnight, today the battery cranks over like its brand new. Works better than expected, for a little over $20.00

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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