BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger And Maintainer Review [2020]

7.2Expert Score
BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger And Maintainer

Well-known for producing power tools and home improvement products through Stanley Works and Black And Decker Corporation, Black + Decker started to include automotive products and various other hardware and accessories. One of their most popular products is the BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger/Maintainer.

Capability
8
Price
8
Commercial
5
Home-use
8
Design
7
PROS
  • Easy connection through battery clips or O-ring terminals or DC plug
  • Charges and maintains 12 volt or 6-volt batteries
  • Can charge and maintain AGM, GEL and WET batteries
  • Built in circuit protection to prevent overcharging.
CONS
  • Poor Instructions and instruction manual.
  • Short cables make setting it up slightly awkward depending on the vehicle and situation.
  • It’s slow if you’re looking for a quick charge, there are better products.
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Stanley Black & Decker formed in 2010 when Stanley Works and Black & Decker Corporation merged. Black + Decker emerged from the merger as one of the core brands for the newly form corporation.

Overview and Features

The BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger/Maintainer is first and foremast a car battery maintainer before a charger. Its primary function is to maintain a battery that isn’t being used regularly and it performs that job really well once it’s completely set up and working.

The unit itself is really compact and covers many different types of batteries – from AGM to WET to GEL batteries.

If you’re looking for a quick charge to get yourself up and running, there are much better quick charge products, but this is definitely a maintainer first, with the car battery charger function coming second.

The easy connection function through battery clips or O-Rings or DC plugs does make the maintainer a really viable option for multiple batteries. It’s fairly easy to set up if you know your way around a car. Don’t rely on the instructions though.

Black+Decker is a solid manufacturer with really great support. Their support over the phone or via email is quick, effective, and well informed.

The instructions provided with the BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger/Maintainer, however, are not the best. They don’t provide the greatest insight into the setup of the product or the various different lights that are on the product.

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BLACK+DECKER BM3B Conclusion and Rating

It’s a solid product for long charging and, in particular, maintaining a battery. If your battery is completely dead, then there are much better products on the market. For maintaining a battery and keeping it alive while the vehicle is stationary for long periods, the maintainer function works well.

The instructions don’t provide the greatest insight into how to correctly setup the BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger/Maintainer. If you’ve got experience with cars in general, you shouldn’t have any issues, but a person with limited experience will struggle to understand certain aspects.

If you’re looking for a cheaper car battery charger and maintainer, we suggest reading our review on the LST Trickle Battery Charger And Automatic Maintainer.

If you’re looking to charge the battery up quickly, we recommend reading our quick charger reviews.

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Summary
Review Date
Reviewed Item
BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger
Author Rating
31star1star1stargraygray
Product Name
BLACK+DECKER BM3B 6V and 12V Automatic Battery Charger
Price
USD 20
Product Availability
Available in Stock