10 Best Auto Battery Charger of August 2025

• 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

• 【Versatility & Efficient】 2A/8A/15A/Auto charging rate, fully automatic high frequency charging for all types of 12V lead acid batteries, including GEL, AGM and STD. Automatically selects charge rate for charging and maintaining (Do not charge a frozen or battery that has gone below 3V).
• 【Complete 7-step Charging Program】Desulphation, Soft Start, Bulk Charge, Absorption, Battery Test, Recondition and Floating, allow for optimization of battery power, without overcharging or damaging.
• 【Multi-Protection】 Microprocessor-controlled, with multi-stage charging for added precision, safety and battery life. Including Over Voltage, Over Heat, Overtime Charging, Short Circuit and Reverse Polarity.
• 【LCD Screen Display】The battery charger equipped with advanced LCD Display. LCD screen displays charging status, charging current, voltage, battery type and error information with easy to understand icons.
• 【Advanced Winter Charging Mode】Specialized design for charging battery in winter weather conditions to sustain a longer life of battery and to ensure perfect charging.

TowerTop

• 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

• Delivers 40A boost and 200A engine start to jumpstart your SUV, truck or other large vehicle battery
• Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life
• Auto voltage detection automatically detects 6 or 12V batteries
• Float-mode monitoring automatically maintains optimum battery charge
• Battery and alternator tester provides charge level and helps diagnose electrical problems

Schumacher

• 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

• ✔ Smart Fast Charger: 2A / 8A / 15A / Auto charging rate, fully automatic high frequency charging for all types of 12V lead acid batteries, including GEL, AGM and STD. Not only do you choose the charging rate manually, but also the optimal function can automatically select the charge rate best fit for your type of battery.
• ✔ Excellent Winter Charging Mode: Specialized design for charging battery in winter weather conditions to sustain a longer life of battery and to ensure perfect charging
• ✔ Safety Protection: Microprocessor-controlled, with multi-stage charging for added precision, safety, and battery life. No worry about battery Over Voltage, Over Heat, Overtime Charging, Short Circuit and Reverse Polarity
• ✔ Advanced LCD Display: Intuitive words and vivid icon, easily keeping track of charging status, charging current, voltage, battery type, and error information
• ✔ Complete 6-step Charging Program: Desulphation, Soft Start, Bulk Charge, Absorption, Battery Test and Floating, allow for optimization of battery power, without overcharging or damaging. Household Use Only. (Do not charge a frozen or dead battery!)

Ampeak

• 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

• Micro processor controlled, fully automatic, 5-stage charging process for precise charging and monitoring batteries
• LED indictor will flash if clamps are reversed and charger will not operate
• Features battery maintaining to prevent overcharging, charging will resume if battery becomes discharged
• Versatile quick-connect harness with 50A clamps, 12V accessory plug or permanent ring connectors
• Quick connect harness's install fast for hard-to-reach motorcycle batteries

DieHard

• Delivers serious jump-starting power with 1000 peak amps and 500 instant starting amps
• Reverse polarity alarm alerts when there is an improper connection; Connect the clamps to the battery, turn on the switch and start your vehicle. All Metal Powder Coated Clamps
• Features a 120 PSI air compressor to help inflate tires with low pressure; High-powered LED light rotates 270 degrees to help you work in the dark
• Built-in 12V DC outlet and USB port provide portable power for electronic devices; Includes a limited 1 year manufacturer warranty
• Jump starter should be charged every 30 days when not in use; Charges using a standard household extension cord (sold separately)

STANLEY

• Dependable and safe to use; In an emergency, the 75-amp engine start helps jump start your vehicle in about 90 seconds
• Successfully maintains the battery on any AGM, GEL, or WET automotive or marine 12V battery with the push of a button
• High-frequency smart charging technology keeps battery at an optimal charge and automatically switches from fast charge, to top-off, to trickle charge
• Allows you to monitor and charge your battery in the quickest and safest way possible; Provides extended longevity
• Front of battery charger features four different options; LCD screen displays battery status with understandable icons
• Fit Type: Universal

STANLEY