Black & Decker Battery Maintainer

95 reviews ratings
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Walmart #: 550910978
Black & Decker Battery Maintainer
$19.90
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  • For use on 6V and 12V battery systems
  • Easy connection to vehicle battery using the included battery clips
  • About this item

    The Black & Decker Battery Maintainer is ideal for use with both 6V and 12V battery systems. You can use it to charge the batteries of RVs, motorcycles, lawn mowers, ATVs, boats or jet skis, classic cars and many other vehicles. You can keep all of your battery-operated vehicles running with the two voltages. The auto battery maintainer offers easy connection to the battery with the included clips. It also includes a DC accessory plug and battery ring terminals. This car battery maintainer features smart charging technology to keep batteries at the optimal charge. It stops when the battery is fully charged. The built-in circuit protection on the auto battery maintainer prevents overcharging or reverse polarity. Your battery is also safe from short circuiting. A built-in mounting bracket allows you to place it in the most convenient location. The car battery maintainer switches from charging mode to float mode monitoring. This Black & Decker Battery Maintainer is fully auto

    About this item

    The Black & Decker Battery Maintainer is ideal for use with both 6V and 12V battery systems. You can use it to charge the batteries of RVs, motorcycles, lawn mowers, ATVs, boats or jet skis, classic cars and many other vehicles. You can keep all of your battery-operated vehicles running with the two voltages. The auto battery maintainer offers easy connection to the battery with the included clips. It also includes a DC accessory plug and battery ring terminals. This car battery maintainer features smart charging technology to keep batteries at the optimal charge. It stops when the battery is fully charged. The built-in circuit protection on the auto battery maintainer prevents overcharging or reverse polarity. Your battery is also safe from short circuiting. A built-in mounting bracket allows you to place it in the most convenient location. The car battery maintainer switches from charging mode to float mode monitoring. This Black & Decker Battery Maintainer is fully auto


    Black & Decker Battery Maintainer:

    • For use on 6V and 12V battery systems
    • Easy connection to vehicle battery using the included battery clips
    • O-ring terminals or vehicle DC plug
    • High-frequency smart charging technology keeps batteries at optimal charge
    • Automatically switches between charging mode and float mode monitoring
    • Built-in mounting bracket

    Specifications

    Battery Type: Does Not Contain a Battery
    Model No.: BM3B
    Shipping Weight (in pounds): 2.0
    Product in Inches (L x W x H): 8.0 x 3.0 x 2.0
    Assembled in Country of Origin: Imported
    Origin of Components: Imported
    Walmart No.: 550910978
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    Customer reviews

    Customer Reviews | 95 reviews | 4.6 out of 5

    4.5 stars

    95 reviews | 4.6 out of 5

    4.5 stars

    95 reviews | 4.6 out of 5

    96%
    Would recommend to a friend
    5 stars
    71
    4 stars
    18
    3 stars
    1
    2 stars
    1
    1 stars
    4
    1-3 of 92 total reviews
    96%
    Would recommend to a friend

    Age

    Gender

    Great product
    7/29/2013

    Customer review by Outdoorsman603

    5.0 stars 7/29/2013 by Outdoorsman603
    by Outdoorsman603

    There are battery maintainers that go for around $100 or more. So I was skeptical about this one only being $20, but gave it a shot anyway. First thing I notice is the plug accessories which are very cool. The device is simple to use and the most important thing is that it works. Hooked it up to my old jeep (battery was dead) it took about 2 weeks but charged the battery and keeps it charged. So I hooked one up to my boat battery and it was fully charged in 2 days. Will probably get a 3rd for my atv. These things are great and cheap.

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    Outdoorsman603
    Lake Charles, La
    Would recommend to a friend? Yes
    Age:35 - 44
    Ownership:3 - 4 months
    Gender:Male
    Usage:Every day
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    Dual Charge Capability and Mulitple Attachments
    9/5/2013

    Customer review by An anonymous customer

    5.0 stars 9/5/2013 by An anonymous customer
    by An anonymous customer

    For the price this unit delivers. Both in 6 volts and 12 volts. It comes with multiple battery attachments which most of the other units out there do not. I used the permanent attachment on my garaged vehicle which rarely sees the road, and then I have the other two attachments remaining which I can use to 'spot' charge my other vehicle/lawn mower/generator batteries to keep them topped up and in their prime. I purchased this B&D Battery Maintainer due to a dead battery found on my garaged vehicle from less than 2 years new!!! The result of not much vehicle road use and a slow discharge brought the battery down so low it could not recover. Now I can spot charge it and keep it in prime condition and avoid another $120 plus battery purchase. I also have the advantage of using it with the other supplied attachments on my lawn mower, portable generator and other vehicles batteries. A great value.

    Was this review helpful? (68) (15)
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    An anonymous customer
    Richmond, VA
    Would recommend to a friend? Yes
    Age:55 - 64
    Ownership:1 week or less
    Gender:Male
    Usage:Once per week
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    charge and defect light are very dim; hard to see
    10/22/2013

    Customer review by User62

    4.0 stars 10/22/2013 by User62
    by User62

    Other than the indicator lights being very dim the unit is excellent. 1.5amp trickle charge is great to maintain car, bike, boat and yard equipment batteries. The three different charge connectors give you options of ways to charge each item.

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    User62
    Merritt Island. FL
    Would recommend to a friend? Yes
    Age:55 - 64
    Ownership:1 week or less
    Gender:Male
    Usage:Every few days
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    1-3 of 92 total reviews See all
    1-3 of 92 reviews

    Customer Reviews | 95 reviews | 4.6 out of 5

    Customer reviews

    4.5 stars
    95 reviews | 4.6 out of 5

    Customer Q&A

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    Questions & Answers
    39 questions
    1-3 of 39 questions

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    by LOBK 2/4/2014
    6 answers
    • A. Yes as long as your cigarette lighter stays on with the ignition off, in other words check to see if your lighter works with the key OFF.
      by Mungo5444/25/2015
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    • A. Yes, it has the plug to do that.
      by Scotsman1114/25/2015
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    • A. Yes, it only draws 1.3 amps and will charge your battery directly back through your cig lighter has long has that lighter is always powered on even after you turn your ignition off.
      by ThunderStroke11112/20/2014
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    • A. Yes
      by Carlops12/20/2014
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    • A. yes as long as your car has a cig, lighter that is hot all the time with key switch in the off position.
      by lostsole4/25/2015
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    • A. The BM3B Battery Maintainer/Trickle Charger can be used to slow charge/maintain a car battery by being connected to the vehicle by either the battery terminal clips, the battery terminal rings, or by a DC accessory plug.
      by Black&Decker4/25/2015
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    For some reason my moms battery is draining nightly having her to have a jump everyday. Could she hook this up at night just to keep the charge?
    by Carol 12/17/2013
    6 answers
    • A. Not likely. A one amp charge won't keep up with that type of drain. Get the car fixed.
      by Mungo5443/12/2015
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    • A. this unit can help with that but you will need to find out what is draining the battery in her car. There might be a short in the system,the battery might be faulty. You should remove the negative cable from the battery with the car off key switch off and key out of switch and when removing the cable check for a spark if you see a spark when removing and reinstalling it there is a short or a drain on that battery!
      by lostsole6/1/2015
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    • A. Yes. That's exactly what it's for.
      by John8141/3/2014
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    • A. This will trickle charge and/or maintain an optimal battery charge on your battery, but it sounds like you might possibly need a new battery or to repair something in your vehicle's electrical system.
      by jadetigress3/12/2015
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    • A. No, this is a trickle charger, you need to get your car fixed
      by Trikeboy3/12/2015
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    • A. Yes, the BM3B Battery Maintainer/Trickle Charger can be used each evening to help maintain the charge in the battery.
      by Black&Decker6/1/2015
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    1-3 of 39 questions See all
    1-3 of 39 questions

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