The Best Battery Tender For Car of June: Reviews & Buyers Guide

EXTEND BATTERY LIFE: Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. Complete 4-step charging program (Initialization, Bulk Charge, Float Mode) allows for optimization of battery power, without overcharging

INCLUDES: 12V, 750mA battery charger, fused ring terminal and alligator clip accessory cables, 5-year warranty, and lifetime customer support

EASY TO USE: Low maintenance design is quick and easy to use, this universal powersport vehicle charger and maintainer is 3.3 x 1.3 x 2.4 inches, 1 lb (charger only)

MONITOR POWER LEVELS: Solid-state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, adaptive charging will resume full charger output power. Automatic charge cycle functionality switches to float mode after fully charging the battery

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, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

EXTEND BATTERY LIFE: Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. Complete 4-step charging program (Initialization, Bulk Charge, Float Mode) allows for optimization of battery power, without overcharging

INCLUDES: 12V, 1.25 AMP battery charger, fused ring terminal and alligator clip accessory cables, 10-year warranty, and lifetime customer support

EASY TO USE: Low maintenance design is quick and easy to use, this universal powersport vehicle charger and maintainer is 4.87 x 3.25 x 2.93 inches, 1.45 lbs (charger only)

MONITOR POWER LEVELS: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, charging will resume full charger output power

STAY CHARGED: The 4 amp car battery charger automotive provides a full charge to your machine's battery before automatically switching to float mode to maintain proper voltage levels for your battery without overcharging

FULLY SELECTABLE: With the push of a button, easily switch from AGM or flooded and lithium ion (LiFePO4) batteries to provide and maintain an optimal charge level for 6 and 12 volt batteries alike

HIGH POWERED: 4 amp switchable car battery charger automotive delivers a powerful charge to keep your car, SUV, pickup truck, or boat battery at peak performance by providing reliable engine starts and extended battery life

EASY TO USE: A low maintenance design that's quick and simple to use, our switchable automobile charger and maintainer is compact and lightweight to operate everywhere, even in small storage spaces

SAFE AND SECURE: Our car battery charger automotive and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power. 5 Year Industry Leading Warranty

Award-winning, Most-Trusted 12V Battery Charger: From the company that created the 12v battery charger comes tried and tested technology used by over 40 of the world’s most prestigious vehicle manufacturers.

Built-In Temperature Compensation: Built in automatic charge voltage compensation ensures the most efficient charging in extreme cold or hot weather conditions.

Patented Desulphation Function and Reconditioning Mode: Unused batteries lose their power and their life is shortened through sulphation. The charger analyzes the state of the battery and, if possible, recovers the battery and its power. Reconditioning mode restores stratified and deeply discharged batteries.

Dedicated AGM Mode: Dedicated AGM Mode sets the absorption and float voltages and stage timing so that they are optimal for AGM batteries.

Connect and Forget: Simple plug and play operation. Select the program and mode and leave the charger to do the rest.

Safe and Easy to Use: Splash and dustproof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. Clean voltage and current delivery ensures no surges or spikes.

Protects Sensitive Equipment: Unlike less-sophisticated chargers, there is no need to disconnect the battery; the MXS 5.0 is specially designed to not damage electronic systems. No overcharge or undercharge ever.

Multiple accessories included: Clamps and practical eyelet connector, for easier access to the battery, as well as a handy storage bag, all supplied as standard.

5-year warranty.

Meet the all-new GENIUS2X2 - a two-bank battery charger, battery maintainer, trickle charger, and battery desulfator - the perfect all-in-one solution for battery maintenance.

Multiple banks - A two-bank battery charger maintainer rated a 4-amps - 2-amps per bank - designed to charge and maintain multiple vehicles like cars, motorcycles, boats, ATVs, RVs, lawn mowers, lawn tractors, trucks, and more.

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.

STAY CHARGED: The 3 amp car battery charger automotive provides a full charge to your car, SUV, or truck battery before switching to float mode to maintain proper voltage levels without overcharging or damaging the battery

ELITE VERSATILITY: Our car battery charger automotive is compatible with lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell) and allows you to recharge 6 or 12 volt batteries with the push of a button

HIGH POWERED: This three amp car battery automotive charger delivers a powerful electronic charge to keep your vehicle running at peak performance by providing stronger, more reliable engine starts and extended battery life

EASY TO USE: A low maintenance design that's quick and simple to use, our switchable automobile charger and maintainer is compact and lightweight to operate everywhere, even in small storage spaces

SAFE AND SECURE: Our car battery charger automotive and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power. 5 Year Industry Leading Warranty

RELIABLE POWER: Delivers 1.5 Amp maintain to car, motorcycle, lawn tractor, and power sport batteries; compatible with standard and AGM batteries

UNDER-THE-HOOD MOUNT: Easily mount the maintainer under the hood of your vehicle for easy access and convenience

SMART CHARGING: Microprocessor-controlled automatic amperage rate adjustment and multi-stage charging for added precision, safety, and battery life

VOLTAGE DETECTION: Automatically detects 6V or 12V batteries

SAFE & RELIABLE: Reverse hook-up protection prevents the charger from operating if the clamps are reversed

For all types of 12V Battery Charger lead-acid batteries, including Gel and AGM

Auto-charging or selectable charging rates: 2A slow charge, 8A charge, 15A rapid charge

Selectable battery types: standard, AGM, Gel

Interactive LCD display shows charging rate selected, battery type selected, battery percentage charged, error messages

Spark proof, reverse hook-up protection, and short circuit protection

STAY CHARGED: Provides a full charge to your machine’s battery before switching to float mode to maintain proper voltage levels for safe, long term storage without overcharging or damaging the battery. Input: 120VAC @ 60 Hz

EASY TO USE: Low maintenance designed to be quick and easy to use, our universal power sport vehicle 12 volt battery charger and maintainer is compact and lightweight to operate everywhere, even in small storage spaces

EXTENDED BATTERY LIFE: Compatible with lead-acid, flooded, and sealed maintenance free batteries (AGM and gel cell) to be ideal for use in long term storage to provide and maintain an optimal charge

MONITOR POWER LEVELS: Solid state two-color LED light indicates the state of the charge and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger outputReverse Polarity Protection to ensure user safety. Red & Green Lights Alternately Flash in this condition

SAFE AND SECURE: Our smart 12 volt battery charger charger and maintainer is spark proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power, California compliant charger