10 Best Car Battery Charger For Dead Battery of December 2025

• Charge All Lead Acid Batteries: Always stay powered - the Jethax 4A Smart Car Battery Charger charges every type of 12V 4Ah-100Ah capacity lead acid battery on the market today: sealed lead acid (SLA), absorbent glass mat (AGM), gel, VRLA, deep cycle batteries and more, making battery trickle charging and maintenance of your car, scooter, snowmobile, motorcycle, lawn mower, and other vehicles a breeze and keeping you in motion.
• Turnkey Solution: No additional purchase required, just plug in and go! Your 3-in-1 portable battery charger comes readily equipped with heavy-duty alligator clips and ring terminals to quickly and conveniently 1) repair, 2) charge, and 3) maintain your vehicles/equipment. Built-in LCD screen allows you to monitor charging, battery status, charge voltage, current, and much more, giving you the power to be your own home mechanic
• 4-Stage Fully Automatic Battery Charging: Our smart charger is smarter than the others. Jethax's smart battery charging technology, the “brain” behind our 12V battery charger, utilizes a 4-stage charging program: Initialization, Bulk Charge, Absorption Mode, and Float Mode. This process protects you from overcharging: the battery charger/maintainer automatically switches to lower voltage output in Float Mode when the battery is full, and switches to higher voltage output when the battery is low.
• Lab-tested Safety Protection: Stringently lab-tested in UL (Underwriters Laboratories) certified testing facilities, our trickle battery charger’s fully automatic charging system is specifically designed to protect from reverse polarity, overcharging, discharging, sparking, over current, short circuiting, and overheating. This allows you to safely maintain and extend the battery life of your lead-acid batteries, while allowing your vehicles/equipment to operate more efficiently and stably.
• Top-Notch Customer Service: your Jethax car battery charger comes with an industry leading 1-year assurance and incredibly friendly and experienced customer support. For any after sales technical assistance or product quality issues, simply click the “Contact Seller” button in “My Orders” to message us.

Jethax

• Meet the 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, battery maintainer, trickle charger, plus battery desulfator.
• 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 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.
• Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
• 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.

NOCO

• 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 safety
• Automatically compensates for lower voltage caused by extension cords

STANLEY

• 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 charger, battery maintainer, trickle charger, plus battery desulfator.
• 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 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.
• Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
• 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.

NOCO

• Meet the GENIUS2 - Similar to our G1100, just better. It's 30% smaller and delivers 140% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
• 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 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.
• Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
• 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.

NOCO

• 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

Schumacher

• POWERFUL LIFE SAVER: This GOOLOO emergency jump starter has enough power (800A peak current) to jump start most 12 volt vehicles on the road! (up to 7.0L gas or 5.5L diesel engines) Works with cars, motorcycles, watercrafts, ATVs, UTVs, SUVs, lawn mowers, yachts, boat, pickup,snowmobiles, etc. Fully charges in 5 hours and can hold a charge for more than 3 months.
• QUICK-CHARGE USB PORTS: Designed with dual USB outputs (5V/2.1A, 5V 2.4A/9V 2A), the quick-charge 3.0 USB port charges your devices faster and is compatible with almost all USB charging devices – including cell phones, tablets, Kindles or digital cameras. Charging is fast and efficient – helping you save time.
• ADVANCED PROTECTION TECHNOLOGY: The intelligent jumper clamp features multiple advanced safety technologies including over-current protection, overload protection, over-voltage protection, over-charge protection and high-temperature protection – ensuring it’s safe for anyone to use.
• LED FLASHLIGHT: The LED work light has 3 modes: Flash Light, Strobe Light and SOS Light. This multi-purpose flashlight is great for camping, outdoors, indoors, emergencies, travel, etc.
• WHAT’S INCLUDED: 1 x GOOLOO Ultra Compact Automotive Jump Starter GP37-Plus, 1 x Smart Jumper Clamp, 1 x Wall Charger (With UL Certification), 1 x Car Charger, 1 x Micro-USB Cable, 1 x Carry Bag, 1 x User Manual.

GOOLOO

• 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

Schumacher

• 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 safety

BLACK+DECKER

• Heavy-duty transformer
• Heavy-duty Steel case with handle
• 6-Ft. Power cord & output cables for a total 12-ft reach
• LEDs display charging status
• Color -coded clamps for top and side mount battery posts

Schumacher