BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B
BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B
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BLACK+DECKER Battery Maintainer/Trickle Charger, BM3B

4.2 stars out of 618 reviews
(4.2)|
618 ratings

Key item features

  • Versatile Compatibility: Works with both 6V and 12V battery systems, making it suitable for a wide range of vehicles and equipment.
  • Automatic Charging: Features fully automatic high-frequency charging to maintain optimal battery capacity without manual intervention.
  • Safety Features: Includes reverse-polarity protection and circuit protection against overcharging or short circuits, ensuring safe operation.
  • Multiple Connections: Connects to the battery via clips, 12V plug, or battery ring terminals, providing flexible installation options.
  • Built-in Mounting: Comes with built-in mounting brackets and an AC plug for easy and secure installation in your garage, shop, or shed.
  • Seasonal Use: Ideal for vehicles with seasonal use such as RVs, motorcycles, ATVs, and more, keeping batteries topped off during the off-season.
  • Durable Design: Sealed for protection against moisture, dust, and oil, ensuring long-lasting performance in various environments.
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Customer ratings & reviews

4.2 out of 5 stars
stars618 ratings481 reviews
How item rating is calculated
  1. 5 stars69% (425)
  2. 4 stars11% (69)
  3. 3 stars4% (24)
  4. 2 stars3% (18)
  5. 1 star13% (82)

Reviews summary

Pros
  • : Offers options at a lower cost compared to similar products.
  • : Made with materials that match the price point.
  • : Provides consistent power management.
Neutral
  • : Can be slow, but also supports multiple voltages.
  • : Offers multiple methods, but cable lengths can be restrictive.
Cons
  • : Indicator lights lack detailed information.
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Showing 1-3 of 481 reviews

Jun 7, 2014
easymoney911
5 out of 5 stars review

Verified Purchase

So far so good.

I've had the Black and Decker Battery Maintainer running for about a week now and I am, so far, very satisfied with the product. I use three other versions of maintainers, all of which work but are considerably more expensive, to maintain the batteries on my ATV's, motorcycle, boat and RV and so far this maintainer works as well as the others. It offers three connection modes, battery terminal clamps, cigarette lighter plug and hard wire directly to the terminals. I prefer to hard wire directly to the terminals and the quick connect plug makes it a lot easier to disconnect when I am ready to play and reconnect when I'm done. Just remember this is not a battery charger! It will keep a fully charged battery functional and up to capacity but will probably not recharge a low or dead battery.

Helpful?6WZPE49Z1BWL21721663
Jul 19, 2016
Dave
5 out of 5 stars review

Verified Purchase

Black & Decker Battery Maintainer

This is a very nice trickle charger. This is third one that I have purchased. I use them on my Wave Runners and Motorcycle to keep the battery in good shape. Before I had these trickle chargers I used to have to replace my Wave runner batteries every season but now they last several years. I would recommend this trickle charger to anyone that is tired of replacing batteries prematurely

Helpful?6WZPE49Z1BWL21721663
May 19, 2014
Harry82
5 out of 5 stars review

Verified Purchase

Inexpensive with options and it works

I used it under the hood with just the alligator clamps. It maintained the charge just fine. I bought 2 of these because I have two batteries to maintain like the riding tractor that sits idle over the winter. You can use the cigarette lighter in cars and even connect it directly to the battery terminal without the alligator clamps. It certainly beats the other higher price units.

Helpful?6WZPE49Z1BWL21721663