Best Auto Battery Charger – Top 8 of 2021

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We checked out tons reviews, and put together a list of the best sellers. Check out the top Auto Battery Charger below.


SaleNo. 1
Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart Battery Charger 100A Engine Starter and 30A Boost...
276 Reviews
Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart Battery Charger 100A Engine Starter and 30A Boost...
  • VERSATILE COMPATIBILITY: Charges compatible battery types, including standard, AGM, gel, and deep-cycle batteries
  • MULTIPLE MODES: Features 30 Amp quick boost and 100 Amp jumpstart, powerful enough to start SUVs, trucks, and large batteries
  • FULLY AUTOMATIC: Microprocessor-controlled system automatically adjusts amperage; includes LED indicator lights
  • EASE OF USE: Battery and alternator tester provides charge level and helps diagnose electrical problems automatically; multi-stage charging...
  • SAFE & RELIABLE: Reverse hook-up protection ensures charger will not operate if clamps are reversed
SaleNo. 2
NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger,...
5 Reviews
NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger,...
  • GENIUS10 - Similar to our G7200, just better. It's 17% smaller and delivers 115% more power. It's the all in one solution battery charger,...
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM,...
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in...
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin...
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger...
SaleNo. 3
BLACK+DECKER BC15BD Fully Automatic 15 Amp 12V Bench Battery Charger/Maintainer with 40A Engine Start, Alternator Check,...
1,150 Reviews
BLACK+DECKER BC15BD Fully Automatic 15 Amp 12V Bench Battery Charger/Maintainer with 40A Engine Start, Alternator Check,...
  • 15 amp bench battery charger maintains and charges any AGM, GEL, or WET automotive or marine 12V battery
  • Fully automatic high frequency charging delivers 3 stage charging, automatically switching from fast charge, to top-off, to trickle charge
  • Battery reconditioning feature helps extend battery life; 40 amp engine start helps start your vehicle in about 90 seconds
  • Equipped with reverse polarity protection; LCD screen displays charging status and battery status with easy to understand icons
  • Features a patented alternator check which indicates if the alternator is maintaining battery level; ETL Certified for performance and...
SaleNo. 4
NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and...
29 Reviews
NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and...
  • Meet the GENIUS5 - Similar to our G3500, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery...
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM,...
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in...
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin...
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger...
SaleNo. 5
NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and...
6 Reviews
NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and...
  • Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. It's the all-in-one solution - battery...
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM,...
  • Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in...
  • Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin...
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger...
SaleNo. 6
Schumacher Fully Automatic Battery Charger, Maintainer, and Auto Desulfator with Battery Detection – 15 Amp/3 Amp,...
  • RELIABLE POWER: Delivers 15 Amp charge and 3 Amp to maintain car, truck, SUV, RV, and marine batteries; compatible with standard AGM, and...
  • SMART CHARGING: Microprocessor-controlled automatic amperage rate adjustment and multi-stage charging for added precision, safety, and...
  • LED DISPLAY: Includes digital display, LED light indicators, and simple button controls for ease of use
  • VOLTAGE DETECTION: Automatically detects 6V or 12V batteries
  • SAFE & RELIABLE: Reverse hook-up protection prevents the charger from operating if the clamps are reversed
No. 7
Schumacher Battery Charger with Engine Starter, Boost, and Maintainer - 200 Amp/40 Amp, 6V/12V - for Cars, Trucks, SUVs,...
77 Reviews
Schumacher Battery Charger with Engine Starter, Boost, and Maintainer - 200 Amp/40 Amp, 6V/12V - for Cars, Trucks, SUVs,...
  • RELIABLE POWER: 40 Amp quick boost mode and 200 Amp engine start for cars, trucks, SUVs, marine vehicles, and RVs; compatible with standard...
  • AUTO AMP ADJUST: Microprocessor-controlled to automatically adjust the amperage rate to charge and maintain
  • BUILT-IN TESTER: Battery and alternator tester provides charge level and helps diagnose electrical problems; auto voltage detection feature...
  • FLOAT MODE: Float mode monitoring automatically maintains optimum battery charge
  • SAFE AND RELIABLE: Reverse hook-up protection helps prevent damage to battery
No. 8
Schumacher Automatic Battery Charger and Engine Starter – 200 Amp, 12V – Cars, SUVs, and Small Trucks 
37 Reviews
Schumacher Automatic Battery Charger and Engine Starter – 200 Amp, 12V – Cars, SUVs, and Small Trucks 
  • POWERFUL MODES: Provides 40 Amp quick boost and 200 Amp jump start, powerful enough to start cars, SUVs, and small trucks
  • HEAVY DUTY: Includes heavy duty transformer and rugged steel case for durability in all terrains
  • FULLY AUTOMATIC: Microprocessor-controlled system automatically adjusts amperage; includes LED indicator lights
  • SAFE & RELIABLE: Reverse hook-up protection helps prevent damage to battery and charger
  • EASY TRANSPORT:  Compact wheels and retractable handle make moving and storing the unit simple; 6-foot power cord and output cables for...