Internet #202710992

Model # BM3B

0885911216357

1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries

  • For use with both 6-volt and 12-volt batteries
  • Automatic microprocessor battery monitoring
  • Reverse connection warning and ready indicator
$ 23 05
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Frequently Bought Together

+
+

Product Overview

  • For use with both 6-volt and 12-volt batteries
  • Automatic microprocessor battery monitoring
  • Reverse connection warning and ready indicator
The BLACK+DECKER BM3B 1.2 Amp battery charger/maintainer lets you say "goodbye" to dead vehicle batteries with 6V and 12V automatic charging. 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. This high-frequency battery charger maintainer can stay plugged in for months, 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. With fully automatic charging, you can plug it in and walk away without ever having to worry. The BLACK + DECKER BM3B is also sealed for protection against moisture, dust and oil, so it's perfect for your garage, shop or shed.
  • 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries
  • 2 easy ways to connect (battery clips, or o-rings) for maximum convenience
  • Compact, impact-resistant polymer housing with integrated mounting bracket for easy mounting and storage
  • High-frequency charging that automatically switches between charging mode and float mode monitoring
  • Low-voltage compensation ensures maximum performance when used with extension cords
  • .



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

  • For use with both 6-volt and 12-volt batteries
  • Automatic microprocessor battery monitoring
  • Reverse connection warning and ready indicator
Model #: BM3B
Internet #: 202710992

The BLACK+DECKER BM3B 1.2 Amp battery charger/maintainer lets you say "goodbye" to dead vehicle batteries with 6V and 12V automatic charging. 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. This high-frequency battery charger maintainer can stay plugged in for months, 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. With fully automatic charging, you can plug it in and walk away without ever having to worry. The BLACK + DECKER BM3B is also sealed for protection against moisture, dust and oil, so it's perfect for your garage, shop or shed.

  • 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries
  • 2 easy ways to connect (battery clips, or o-rings) for maximum convenience
  • Compact, impact-resistant polymer housing with integrated mounting bracket for easy mounting and storage
  • High-frequency charging that automatically switches between charging mode and float mode monitoring
  • Low-voltage compensation ensures maximum performance when used with extension cords
  • .



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Key Features

Product Overview
Key Features
  • For use with both 6-volt and 12-volt batteries
  • Automatic microprocessor battery monitoring
  • Reverse connection warning and ready indicator
The BLACK+DECKER BM3B 1.2 Amp battery charger/maintainer lets you say "goodbye" to dead vehicle batteries with 6V and 12V automatic charging. 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. This high-frequency battery charger maintainer can stay plugged in for months, 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. With fully automatic charging, you can plug it in and walk away without ever having to worry. The BLACK + DECKER BM3B is also sealed for protection against moisture, dust and oil, so it's perfect for your garage, shop or shed.
  • 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries
  • 2 easy ways to connect (battery clips, or o-rings) for maximum convenience
  • Compact, impact-resistant polymer housing with integrated mounting bracket for easy mounting and storage
  • High-frequency charging that automatically switches between charging mode and float mode monitoring
  • Low-voltage compensation ensures maximum performance when used with extension cords
  • .



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

  • For use with both 6-volt and 12-volt batteries
  • Automatic microprocessor battery monitoring
  • Reverse connection warning and ready indicator
Model #: BM3B
Internet #: 202710992

The BLACK+DECKER BM3B 1.2 Amp battery charger/maintainer lets you say "goodbye" to dead vehicle batteries with 6V and 12V automatic charging. 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. This high-frequency battery charger maintainer can stay plugged in for months, 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. With fully automatic charging, you can plug it in and walk away without ever having to worry. The BLACK + DECKER BM3B is also sealed for protection against moisture, dust and oil, so it's perfect for your garage, shop or shed.

  • 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries
  • 2 easy ways to connect (battery clips, or o-rings) for maximum convenience
  • Compact, impact-resistant polymer housing with integrated mounting bracket for easy mounting and storage
  • High-frequency charging that automatically switches between charging mode and float mode monitoring
  • Low-voltage compensation ensures maximum performance when used with extension cords
  • .



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar

Compare Similar Products
Brand BLACK+DECKER Battery Tender BLACK+DECKER DEWALT
Name 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries 12-Volt 750mA Battery Tender Junior 2 Amp Waterproof Battery Maintainer 4 Amp Professional Waterproof Battery Charger
Price
$23.05
$39.97
$40.87
$49.98
Ratings (203) (98) (70) (70)
Charger type AC or DC AC AC or DC AC
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
5.06
Product Height (in.)
9.62
Product Width (in.)
2.81

Details

Amperage (amps)
1.2 A
Automatic/Manual
Automatic
Charger type
AC or DC
Cord Length (ft.)
4
Features
No Additional Features
Handheld/wheels
Hand
Product Weight (lb.)
1.35lb
Returnable
90-Day
Voltage Output (volts)
120 V

Warranty / Certifications

Certifications and Listings
1-UL Listed,ETL Listed
Manufacturer Warranty
1

Specifications

Dimensions

Product Depth (in.)
5.06
Product Height (in.)
9.62
Product Width (in.)
2.81

Details

Amperage (amps)
1.2 A
Automatic/Manual
Automatic
Charger type
AC or DC
Cord Length (ft.)
4
Features
No Additional Features
Handheld/wheels
Hand
Product Weight (lb.)
1.35lb
Returnable
90-Day
Voltage Output (volts)
120 V

Warranty / Certifications

Certifications and Listings
1-UL Listed,ETL Listed
Manufacturer Warranty
1

Questions & Answers

Several reviewers have said this unit will charge only once, then has to be reset (power turned o...

Several reviewers have said this unit will charge only once, then has to be reset (power turned off and back on a little while later, such as using a timer). One even said they called B&D who told them to buy a different model. Can someone confirm this? If true, then I do not know if this unit is suitable for a vehicle to be stored for 4 or 5 months, unless you use a timer or have someone occasionally start up the vehicle for 15 minutes.
Asked by: ESD
The purpose of a charger maintainer is to charge the battery and then maintain using a trickle. I've never had to 'reset' mine. It's often discouraged to start up a car in storage for 15 min. More important to make sure the engine is hot and the exhaust is hot enough to clear any moisture. Read online to learn more about storing cars. Most say it's worse to start a car and drive around the block than letting it sit until you get the car back out of storage. However, Your Mileage May Vary (YMMV).
Answered by: kevin
Date published: 2018-12-02

Can this be used to recharge/ maintain 12v and 6v Sealed lead acid batteries? Like the kind in yo...

Can this be used to recharge/ maintain 12v and 6v Sealed lead acid batteries? Like the kind in your kids mini car or in emergency lighting?
Asked by: TS
Yes
Answered by: Stan
Date published: 2019-03-07

Can I use this to charge a 12v power wheels battery?

Asked by: Vick
I’m not sure about that but I’m using mine for a 12 volt battery on my ATV. So I would think so but I’d ask the manufacturer to be sure
Answered by: berniD
Date published: 2019-01-10

Can it be hooked to cigarette lighter outlet

Asked by: Loy
Yes. The box I just bought has the cigarette plug
Answered by: Ap
Date published: 2019-03-13
  • y_2019, m_10, d_17, h_22CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_24
  • loc_, sid_202710992, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 24ms
  • QUESTIONS, PRODUCT

Customer Reviews

BLACK+DECKER 1.2 Amp Battery Charger/Maintainer compatible with 6- and 12-Volt AGM, GEL and WET automotive/marine batteries is rated 4.3 out of 5 by 203.
Rated 1 out of 5 by from This is not a battery maintainer. This is a battery charger. When connected to a battery that nee... This is not a battery maintainer. This is a battery charger. When connected to a battery that needs charging this unit charges the battery and when the battery is fully charged this unit stops charging. If the battery loses some of the charge, this unit fails to detect the lower voltage and will not automatically recharge the battery. If this unit is disconnected from the battery and then reconnected to the battery this unit detects the lower voltage and starts changing. A battery maintainer should not have to be disconnected. I called the customer service number 1-877-571-2391 and described the problem and I was told to return the unit to the store and buy a different model. A work-around that I use is to plug this unit into a timer that is set to turn off the 120-volt power once a day for at least an hour. This trick ensures that this unit is forced to check the voltage of the battery and charge it if necessary.
Date published: 2017-01-13
Rated 4 out of 5 by from I bought this to replace an older 1.25 amp Battery Tender as it no longer worked, and the Black a... I bought this to replace an older 1.25 amp Battery Tender as it no longer worked, and the Black and Decker has more modern electronics. It seems to be working correctly but I'm a bit disappointed that it is not correctly listed online. Listing states 1.5 amps but on the box and maintainer it lists 1.2 amp. So not as advertised but working well and a great price.
Date published: 2019-08-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-08-01
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-08-21
Rated 5 out of 5 by from Works great. Works great.
Date published: 2019-10-15
Rated 5 out of 5 by from Worked well.... Worked well.
Date published: 2019-10-15
Rated 5 out of 5 by from Terrific unit I found myself in a situation where I had to store my motorcycles remotely, while I moved cities. At home I used a an ultimate unite that I swapped between 3 bikes, but with a move I had to store the bikes a 2 hr drive away for several months and I had to find an alternative, reasonable cost solution. The ultimate is a great device also but way more costly. I decided to order two of these B&D units as I have always been happy with their products. I researched the background and figured if B&D bought the company that designed these they must be OK. I hooked up two of my bikes with these units and left them for 5 months alone in storage hoping I would not need to buy new batteries when I got the bikes out. When I got back, the green LEDs were illuminated on both units. Turned the keys and both bikes started up like champs. Batteries were strong cranking and kept fully charged. I have since moved the bikes to the new house and these units are on them constantly while we endure winter in the east. really really satisfied with this product. At 20 bucks each I already exceeded the value from them in saving me over $200 cost in new bike batteries. They saved me in this storage and now are holding me through winter. Enough said!!
Date published: 2013-12-07
Rated 5 out of 5 by from DC Residential Lighting System Our home has built-in 12vdc LED lighting in most rooms that operates from a large, central deep cycle battery. It can operate our house for about a week before needing to be topped off (typically @ 70% charge). The battery was rotated with another one in our solar powered workshop and recharged away from the house. A minor hassle - but worth it for clean, bright Off-Grid illumination. Attaching this BM3B trickle charger to the central battery has made it in effect a Uninterrupted Power Supply - keeping the voltage close to a healthy full charge at all times and eliminating the weekly switch-out. And when the grid goes down for an extended period (as happens in our rural area a couple of times a year) we still have the solar recharge option. It installed very easily. Took a few hours to top-off the deep cycle - but went into float mode overnight and kicks back into trickle charge mode for a few hours after a night of using the lights around the house. Its case gets slightly warm when charging. Expected. Mounting screw holes are very useful in our application. I agree about the 6v/12v switch feeling a little cheap - it needs to be more "clicky" to instill confidence that it won't easily/accidentally be knocked into the wrong voltage setting. Only thing yet to be proven is it's long-term serviceability. Here's hoping - it's a very simple and elegant solution!
Date published: 2014-02-15
  • y_2019, m_10, d_17, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_203
  • loc_, sid_202710992, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 23ms
  • REVIEWS, PRODUCT