9 Best 12v Battery Chargers

Last Updated June 2020 Based on 1414 Reviews
1 Best of the Best!
Battery Tender 12 Volt Junior Automatic Battery Charger
Battery Tender Battery Tender 12 Volt Junior Automatic Battery Charger
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9.9 Greet
Product Highlights
  • Spark proof during lead connection, reverse polarity protected and includes a 12-foot output cord and 5-year warranty
  • Perfect for charging all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell) and safety timer-80 hours
  • Complete 4-step charging program (Initialization, Bulk Charge, Float Mode) allows for optimization of battery power, without overcharging
  • Automatic charge cycle functionality switches to float mode after fully charging the battery
  • Solid state two color LED indicates stage of charger and if the battery voltage drops too far under load, full charger output power resumes
2
NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation
NOCO NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation
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9.6 Greet
Product Highlights
  • Meet the GENIUS10 - Similar to our G7200, just better. It's 24% smaller and delivers over 120% more power. And it's simpler and easier to use than ever before.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use.
  • Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.
  • Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
3
Schumacher SC1281 6/12V Fully Automatic Battery Charger and 30/100A Engine Starter with Advanced Diagnostic Testing
Schumacher Schumacher SC1281 6/12V Fully Automatic Battery Charger and 30/100A Engine Starter with Advanced Diagnostic Testing
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9.5 Greet
Product Highlights
  • Features 30A quick boost and 100A jump start, powerful enough to start SUVs, trucks and large batteries
  • Battery and alternator tester provides charge level and helps diagnose electrical problems
  • Features multi-stage charging and auto-voltage detection for added precision, safety and battery life. UL Safety Certifications
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries
4
Battery Tender Plus 12V, 1.25A Battery Charger
Battery Tender Battery Tender Plus 12V, 1.25A Battery Charger
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9.1 Greet
Product Highlights
  • Fully automatic: The Battery Tender plus is a 1.25A battery charger designed to fully charge a battery and maintain It at proper storage voltage without the damaging effects caused by trickle chargers
  • Fast and efficient: This 1.25-Amp charger will charge as fast or faster than any 3-amp charger available
  • Convenient: Included is a quick connect harness for hard to reach areas. Ac power cord length is 6 feet - 18AWG, DC output cord length 4.5 feet - 18AWG, DC accessory length 1.5 feet - 18 AWG
  • Safe: reverse polarity protection to ensure user safety, red and green lights alternately flash in this condition
  • Included: The package includes Battery Tender ring terminals and alligator clips
6
Schumacher SC1280 6/12V Rapid Battery Charger and 15A Maintainer
Schumacher Schumacher SC1280 6/12V Rapid Battery Charger and 15A Maintainer
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8.7 Very good
Product Highlights
  • Features 15A to charge and 3A to maintain your battery
  • Auto voltage detection automatically detects 6 or 12V batteries
  • Automatically selects charge rate for charging and maintaining
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries
7
BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps
BLACK+DECKER BLACK+DECKER BM3B Fully Automatic 6V/12V Battery Charger/Maintainer with Cable Clamps
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8.3 Very good
Product Highlights
  • Charges and maintains 12 volt and 6 volt AGM, GEL and WET batteries
  • Easy connection to vehicle battery using battery clips and O-ring terminals
  • Stops charging automatically when battery is fully charged or topped off, switching to float mode monitoring
  • Built-in circuit protection guards against overcharging, reverse polarity, or short circuit; ETL certified for performance and safety
  • Mounting bracket built-in to charger for convenient placement
8
NOCO Genius G3500 6V/12V 3.5 Amp Battery Charger and Maintainer
NOCO NOCO Genius G3500 6V/12V 3.5 Amp Battery Charger and Maintainer
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8 Very good
Product Highlights
  • The most versatile all-in-one battery charger any vehicle owner would need to quickly recharge its battery in hours, including cars, boats, trucks, RVs, tractors and much more up to 120 amp-hours.
  • Perfect for keeping your vehicles fully-charged and maintained during year-round battery maintenance or long-term storage for improved performance and longevity.
  • Works with all types of 6-volt and 12-volt lead-acid batteries, including Wet, Gel, and AGM, or any common automotive, deep-cycle, marine, or maintenance-free battery.
  • Keep your battery fully charged without worry or overcharge. Simply plug-in and let our advanced charging technology automatically monitor and maintain your battery.
  • Use our advanced Repair Mode to reverse the damaging effects when batteries are left uncharged for extended periods to improve battery performance and longevity.
  • An optimized charge mode for safely charging and maintaining 12-volt lithium-ion batteries, and recommended with use on lithium batteries with an internal BMS.
  • One of the most advanced and safest battery chargers, including spark-proof technology, and reverse polarity protection, plus backed by our 5-year and endless accessories.
9
Milwaukee Genuine OEM 48-59-2401 M12 Lithium Ion 12 Volt Battery Charger w/LED Indicating
Milwaukee Milwaukee Genuine OEM 48-59-2401 M12 Lithium Ion 12 Volt Battery Charger w/LED Indicating
More info
7.9 Good
Product Highlights
  • 30 Minutes of charging
  • M12 Battery Charger
  • Mfg# 48-59-2401
10
NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation
NOCO NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation
More info
7.6 Good
Product Highlights
  • Meet the GENIUS1 - Similar to our G750, just better. It's 22% smaller and delivers over 30% more power. And it's simpler and easier to use than ever before.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charges dead batteries as low as 1-volt. Or use the all-new Force Mode that allows you to take control and manually begin charging dead batteries down to zero volts.
  • Simple to set up and use - Plug-in, connect to the battery, select a charge mode, and start charging your battery. A fully-automatic, worry-free battery charger for year-round use.
  • Restore your battery - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.
  • Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.

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