The 16 Best Smart Battery Charger for Every Budget 2022

One is enough>> Designed to charge 12V,24V, 36V, 48V batteries pack. Now you only need one charger to charge different batteries like SLA, AGM, GEL, LiFePO4, lithium, deep cycle battery. It can be used to charge car, motorcycle, vehicle, RV, ATV, SUV, Golf Cart, Marine, Boat.

Two charging modes>> Normal mode and “H” mode(pulse of high-voltage). Normal mode for daily charging, turn the AMPERE knob to set the charging rate, “HIGH” for an emergency quick charge. “H” mode for battery maintenance, “LOW” rate charging is recommended.

Why need maintainance>> After using a period of time, sulfate crystals will be deposited on the plate, and the acid stratification will be caused by gravity, which will reduce battery capacity and increase corrosion at the bottom of the plate.

What is "H" mode>> "H" mode is also an EQUALIZING CHARGE mode, which not only restores lost battery performance but also compensates for the balance between batteries and extends battery life. Turn the voltage knob to the "H" position, and set the current to the lowest. Charge your lead-acid battery slowly at high voltage, which removes lead sulfate and reverses acid stratification more efficiently.

Connect it& Forget it>> Overload circuit breaker and automatic control chip give you full protection. Just plug it, charging your batteries 24/7 without worry.

Lightweight version: Compared to our model C40 , it is 1/4 lighter and cannot charge 60V/ 72V batteries. Current: 12V-12A(max), 24V-10A(max), 36V-8A(max), 48V-6A(max)

Meet the GEN5X2 - Similar to our GENM2, only better. It's 37% smaller and delivers 43% more power. It's one of the best performing onboard marine battery chargers we have ever made.

Multiple banks - A two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.

Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and 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.

Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise.

Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater.

What's in the box - GEN5X2 10-amp 2-bank waterproof onboard marine battery chargers (120-240VAC) with a 72-Inch DC cables with 3/8-inch eyelets and a 72-inch Type-B AC cable, (2) self-tapping mounting screws, user guide, and 3-year warranty.

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 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.

Meet the GENIUS2X2 - It's the all-in-one 2-bank solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.

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.

The Blue Smart IP65 12-Volt 15 amp Battery Charger is the new professional battery charger with built-in bluetooth

The 7-step charging algorithm gets the best out of your battery. The charger gives the battery the power it needs, maintains its health, ensures better performance and a longer life

The Blue Smart IP65 Charger will attempt to recharge a deeply-discharged battery by force-feeding it with a low current. Normal charging will then be resumed as soon as there is sufficient voltage across the battery terminals

The charger comes with both crocodile clips and M8 eyelets, making it easy to connect to the battery, If you wish, you can leave it permanently connected

The Blue Smart IP65 Charger is waterproof and can be used on devices in your workshop and on motor or marine vehicles, such as (classic) cars, boats, yachts and motorbikes

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

√ Perfect for all 12V lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell); It's smart car battery charger for automobiles, automotive, marine, boats, camper, trolling motor, RVs, ATVs, watercraft, powersport, riding lawnmower, lawn tractor, snowmobiles, etc.

√ Safety Guarantee - Multi protection against Reverse polarity/ Short Circuit/ Over Voltage/ Over Current/ Overload/ Overheat; Spark proof during lead connection; Water and dust resistant float charger, full-loaded and burn-in test proves its stable performance and high reliability.

√ 4-Stage Automatic Charging - Features with detachable ring or alligator connectors, charge and maintain your battery wherever you go; the battery maintenance charger monitor the whole charging process, automatically switches to float mode after fully charging the battery by MCU controlled; LST motorcycle battery charger will recover batteries more effectively and extend the battery life.

√ Intuitive LED Indicator - 12 volt automotive battery maintainer charger provide visual state-of-charge feedback and diagnostic information, even when in maintenance mode. Input 100-240V, ultra-compact and lightweight, easy to carry the 12v battery charger everywhere.

√ 100% Satisfactory Float Charger - You will get awesome trickle chargers for 12 volt batteries with decent package; LST trickle battery charger offer 3-Year quality assurance & 12-Month refund & timely after-sale services.

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 and auto-voltage detection. Battery Type: Standard, AGM, Gel, Deep-Cycle

SAFE AND RELIABLE: Reverse hook-up protection ensures charger will not operate if clamps are reversed

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.

(Safety with ETL Listed): Spark proof during lead connection, reverse polarity protected and includes a 8 foot output cord and 2 year warranty

Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell), also Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode)

Small size 3.9 x 2.4 x 1.25 in and suitable for Most Vehicles: adapts to all kinds of 12V battery for automobiles, motorcycles, ATVs, personal watercraft, RVs, boats, airplanes, golf carts, back-up generator systems lawn mower, etc, batteries using either the ring or alligator connectors, automatically switches to float, maintenance voltage after fully charging the battery

Intuitive LED indicators provide visual state-of-charge feedback and diagnostic information, even when in maintenance mode.

It will charge and maintain your battery so that it is ready to go when you are! It's lightweight, fully automatic and easy to use