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1.2 Amp Portable Car Battery Charger/Maintainer Compatible with 6 and 12-Volt AGM, GEL and WET Auto/Marine Batteries

  • Compact 1.2 Amp Maintainer ideal for topping off charge
  • Compatible with AGM/GEL/WET 12V battery systems
  • Integrated safety features including reverse polarity protection
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How to Get It

Product Overview

The Black + Decker Battery Maintainer/Charger is designed to keep your 6 Volt and 12 Volt batteries at optimal capacity year-round. 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.
  • 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


  • Black + Decker 12v & 6v car battery charger/ battery maintainer



  • Fully automatic car battery charger with O-rings and battery clamps



  • 6v/12v automotive smart car battery charger features

  • Click here for more information on Electronic Recycling Programs
  • California residents

Additional Resources

From the Manufacturer

Specifications

Dimensions

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

Details

Amperage (amps)1.2 AAutomatic/ManualAutomatic
Charger typeAC or DCCord Length (ft.)4
FeaturesNo Additional FeaturesHandheld/wheelsHand
Product Weight (lb.)1.35Returnable90-Day
Voltage Output (volts)120 V

Warranty / Certifications

Certifications and ListingsETL Listed,UL ListedManufacturer Warranty1

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.3
    out of 244 reviews
  • 81%recommend this product
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Showing 1-10 of 244 reviews
Works like a champ
Use this on my stored convertible and it has been working great for 4 years.
by
    • Recommended
    I have had other brand trickle chargers that are more expensive and have failed. I have two of th...
    I have had other brand trickle chargers that are more expensive and have failed. I have two of these and one larger maintainer, they work great. Always ready to run. I have used the permanent leads on each car, but there is also a set of battery clips and a cigarette lighter adapter that can be used as well. There is also a warning indicator to keep it from being connected wrong.
    by
    • Verified Purchase
    • Recommended
    1 found this review helpful
    Cost effective maintainer
    Bought one of these last winter when my daily driver started cranking kind of slowly. Unfortunately I don’t take long drives and so the car alternator never had a chance to charge the battery fully. I’ve been using this trickle charger for a year now and it seems to be doing the trick. Now my battery is at five years and my wife’s is at six. Hoping we can get through one more winter with judicious use of this charger.
    by
      • Recommended
      My Jeep likes to drain the battery and she doesn't get driven often so needed something to keep t...
      My Jeep likes to drain the battery and she doesn't get driven often so needed something to keep the battery charged between trips. Works great!
      by
      • Verified Purchase
      • Recommended
      4 found this review helpful
      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!!
      by
      • Recommended
      16 found this review helpful
      Worked for 6 years, then died on me
      Not a terrible charger. used for a motorcycle for a while. now will blink green for a minute and then switch to the solid red "swap terminals" light. Terminals are connected to the correct polarity. tried on other batteries, same result.
      by
      Response from BLACK+DECKER® SupportAug 4, 2022
      We appreciate your feedback on the BM3B and are sorry to hear about the issue you are having with your product. Please email us at wecare@sbdinc.com and reference ticket # 5093842. We look forward to hearing from you.
        • Recommended
        Died in less than 2 years
        Just died in only 18 months. Always in the garage, keeping a brand new red top battery full. Hadnt checked on it in a few weeks, and now battery is dead, no lights or charge on this thing.
        by
        Response from BLACK+DECKER® Support Aug 12, 2022
        We appreciate your feedback on the BM3B and are sorry to hear about the issue you are having with your product. Please email us at wecare@sbdinc.com and reference ticket #5185546. We look forward to hearing from you.
          Works fine on aircraft battery
          Works as advertised. No problems. Nice long power cord to reach the outlet without extension cord.
          by
            • Recommended
            Work great for me for years!
            I bought one to keep hooked to my parked vehicle while I rotate driving my vehicles every few months. I have not had dead battery issues since. They crank my starter rather aggressively every time. I also bought one for my ATV after another brand quit working. I’m not sure what is happening to other reviewers. (The ones who rate anything other than the product don’t count.)
            by
              • Recommended
              Stopped working after a month
              Stopped working entirely after about a month. During that time I had it plugged in for a week or two. The lights stopped working completely. Don't buy this product.
              by
                Showing 1-10 of 244 reviews