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The 8 Best 4 amp battery chargers of 2024

Are you trying to find 4 amp battery chargers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling 4 amp battery chargers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 27 hours of research and did 24 4 amp battery chargers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best 4 amp battery chargers you can buy today

No. 1
Battery Tender 4 AMP Car Battery Charger and Maintainer: Switchable 6V / 12V, Automotive Battery Charger and Maintainer for Cars, Trucks, and SUVs, Lead Acid & Lithium - 022-0209-BT-WH
  • 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
SaleNo. 2
ULTRAPOWER 4-Amp 14.6 Volt LiFePO4 Battery Charger,12.8 Volt LiPO Lithium Battery Charger,4-Stages Smart Battery Charger for Cars,Motocycles,Golf Carts,UAV,Fishing Boat,Automatically Active BMS
  • [LiFePO4 Battery Charger]:The ULTRAPOWER 4-Amp LiFePO4 Lithium battery charger is designed for 12.8 Volt-14.6 Volt batteries.perfect for charging Car,Motorcycle,Racing,ATV,UTV,Trucks,Fishing Boat,RV,Lawn Tractors,Electric Sports,Law Mowers,Snowmobiles,Golf Carts,Golf trolley battereis ect.
  • [4-Amp Quick Battery Charger]:Voltage and Current Stabilized Battery Charger with Optimization of Charging Rate,it can charger battereis quickly and efficiently, it can fully charge your battery in just a few hours,saves your time.
  • [Smart Charging Tech]:LFP battery charger equipped with advanced microprocessor technology.automatically detects the battery status and adjusts the charging rate accordingly,featuring activate"Sleep Battery"BMS,automatic"CUT-OFF"the output once battery is fully charged ,Auto"Re-charging"manages the battery`s health on it`s own.to ensure optimal performance and longevity of batteries.
  • [Multi-Protection]:Equipped with multiple protection features to protect the batteries from over-charging,short-circuiting,over-heating and reverse polariyt etc.
  • [Easy-To-Use]:This LiPO battery charger is designed with user-friendliness in mind,featuring 4LEDs disply that shows the battery status 25%-100% and indicate fault alarm,fish clips accessory cables,5525 DC plug cables and lotus plug cable to meet your needs.
No. 3
Energizer ENC4A ENC4A 4-Amp Battery Charger/Maintainer
1,637 Consomer Reviews
Energizer ENC4A ENC4A 4-Amp Battery Charger/Maintainer
  • 9-step smart battery charger keeps batteries at optimal charge and lasting longer than simple chargers
  • Auto voltage detection between 6-volt and 12-volt batteries
  • Built-in protection guards against overcharging, reverse polarity, or short circuits
  • LCD display shows status and battery voltage measurement
  • Automatically adjusts the amperage rate to charge and maintain batteries
SaleNo. 4
Sailnovo 4A Smart Car Battery Charger, 6V 12V Automotive Charger Maintainer Fully Automatic 8-Stages Trickle Charger for Automotive Motorcycle Car Battery, Portable 4A Car Battery Charger 6V 12V
  • MULTI-PURPOSES BATTERY CHARGER: 6V and 12V Pb/ SLA/ VRLA/ GEL/ AGM lead acid battery charger tender, operated with vulcanization function, Adakiit battery maintainer charger is a great choice for lawn mower, boat, car, motorcycle, ATV, scooter, snowmobile, trucks (small), electric vehicle, electric tools, etc. (4-120Ah) Used as Trickle Battery Charger as well. UPGRADED WITH 50A FUSE ONTO RING CONNECTORS
  • 8-STAGE SMART CHARGING - FULLY AUTOMATIC BATTERY CHARGER: 8-stage automatic charging process [ Diagnosis - Desulfation - SoftStart - BulkCharge - Absorption - Test Mode - Recondition - Float ] by MCU controller,25%/ 50%/ 75%/ 100% to indicate the quantity of electricity and monitor the whole charging progress. Stop automatically when the battery is fully charged. Perfect for year-round battery maintenance or long-term storage for improved performance and longevity.
  • INTUITIVE LCD SCREEN &INTELLIGENT DETECTION: The battery charger maintainer provides you with the status of the charging directly and diagnostic information, even when in maintenance mode.LCD screen displays charging voltage/current, charging mode, battery type, and percentage of power remaining. When the charger is turned on, it restores the last settings used, making your life easier. It also automatically detects sulfated batteries and attempts to repair them if possible
  • MULTI SAFETY PROTECTIONS - BATTERY RESCUE & RECOVER: This battery charger offers multi-protection against Reverse Polarity, Short Circuits, Over Voltage/ Current, Over Charge/ Discharge, Overload, Overheating; features Constant Pulse Current Maintenance function to avoid overcharge and discharge; Full-loaded and burn-in test proves its high reliable efficiency, stable performance
  • QUALITY INSURANCE Battery Maintainer: Updated with battery condition diagnosis to detect the defective battery before charge and 72-hour safety features, just get a portable 6v 12v trickle charger for car batteries with confidence; Adakiit smart battery charger offers 2-year quality assurance & 12-month refund & timely after-sale services
  • This battery charger is a 4A smart battery charger. If you need a 1A, 4A, 6A, or 10A smart battery charger, please scroll down to the link's details page to view the options.
No. 5
Kinverch 4A Battery Charger/Maintainer Fully Automatic 6V/12 V Smart Charger,Trickle Charger, Desulfator for Motorcycles, Boats, Trucks, SUVs
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Intuitive LED Screen - And LCD screen displays charging modes, failure display, voltage or failure code display, battery capacity or charging display, battery type clearly.
  • 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.
  • Works with all types of 6V and 12V lead-acid batteries - such as AGM, GEL, SLA, Flooded(WET), CA, EFB, and LIB. Kinverch battery maintainer charger is a great choice for cars, trucks (small), motorbike, lawn mowers, tricycles, electric vehicles, agricultural vehicles, off-road vehicles, pickup trucks, boats, yachts, motorboat.
No. 6
Duracell DRMC4A 4 Amp Battery Charger Maintainer with LCD Display for 6V, 12V, Lithium Ion Battery
  • The Charger/Maintainer's multi-stage charging protocol ensures an optimal charge on all types of 6V, 12V, and Lithium-Ion vehicle batteries
  • The 4 Amp charger/maintainer features a backlit LCD screen for best in class user experience, and is rated IP65 for weatherproof construction.
  • The charger includes alligator clamps for periodic charging, as well as ring terminals for semi-permanent battery attachment (ideal for maintenance).
No. 7
4 Modes Car Battery Charger, 24V/12V Battery Charger Automotive, 4A/8A LCD Battery Charger Switching Automatically from Fast Charging to Trickle Charging for AGM Lead-Acid Batteries
  • 🔋【Four Modes for Every Need】①Vehicle Mode: Max power (8.2A, 13.5V) for 85-95AH lead-acid batteries in your vehicle. ②AGM Battery Mode: Pro-level charging (8.2A, 13.5V) for 10-150AH AGM batteries. ③Motorcycle Mode: Smooth ride maintenance (1.45A, 13.5V) for 2-15AH motorcycle batteries. ④Repair Mode: Revive low voltage batteries with a boost (14.9V). Upgrade your charging game with these versatile modes to meet your battery needs.
  • 🔋【Supercharge Your Life with SUHU Battery Charger】Designed for 12V/24V lead-acid batteries, including AGM, EFB, GEL, SLA, and Flooded (WET) types, our SUHU car battery charger is a versatile all-in-one solution. Perfect for cars, trucks, motorcycles, boats, and more, it's the ultimate battery charger automotive and a reliable trickle charger for car battery. Rest easy knowing we offer replacements for any quality issues.
  • 🔋【Smooth Charging】The SUHU trickle charger for car battery offers 8 robust protections for a smooth experience. With a durable ABS shell and built-in circuit protection, this 24V/12V battery charger automotive safeguards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits, and overheating. Enjoy stable performance and peace of mind with its adaptive charging process that automatically stops when your battery is fully charged.
  • 🔋【Revive Your Battery with The Powerful Pulse Repair Function】Equipped with an intelligent control system and robust pulse repair technology, the SUHU 12V battery charger can breathe new life into tired batteries, extending their overall lifespan. Please note that while the SUHU trickle charger for lawn mower can work wonders, it cannot revive a completely dead battery or make it brand new again..
  • 🔋【Plug, Select Modes, and Play】This agm battery charger is as easy as 1-2-3! The SUHU trickle charger for lawn mower is designed to automatically adjust the charge current and voltage, ensuring optimal charging performance regardless of the weather, be it winter or summer.
  • 🔋【Built to Last, Backed by Top-notch Service】Count on the SUHU agm battery charger for its durable and efficient design. Our experienced engineers and dedicated support team are always here to lend a helping hand. If you encounter any issues, please reach out to us via email. Just a friendly reminder, this is a battery trickle charger, not a car jump-starter.
No. 8
MOTOPOWER MP00207 6V and 12V 4AMP Automatic Smart Battery Charger, Battery Maintainer, Battery Desulfator with Force Charging Recondition Mode
  • ✅ An intelligent battery charger and maintainer for all types of 6V and 12V lead-acid batteries, including Conventional Flooded (wet), Factory Activated Maintenance Free (MF/FA), Absorbed Glass Mat Maintenance Free (AGM), and Gel (Gel Electrolyte) type batteries. Input Voltage: 100-120V AC
  • ✅ FULLY AUTOMATIC - Voltage Auto Detection for 6V or 12V batteries - Dead battery detection and warning - Plug and go for charging and maintaining. The microprocessor controlled program will monitor the whole charging progress and automatically stop when the battery is fully charged. Then it will monitor the battery voltage and maintain the battery with a float charging current.
  • ✅ 7 CHARGING STAGES & Repair Mode - Diagnosis, Soft Start, Bulk Charge, Absorption, Float, Maintenance and Recovery.Two charging rates (2Amp or 4Amp) can be selected to charge 12V batteries in different capacities. 2 amp charge rate for 6v battery. Repair mode for sulfated batteries.
  • ✅ SAFETY ENSURED - Advanced micro technology ensure the safety against overcharge, short circuit and reverse palarity. Spark free technology.
  • ✅ LED INDICATION & SAE QUICK CONNECTION - Easy to read LED lights indicate power on, 6v or 12v mode, 2 amp or 4 amp charge rate, and battery charge status.Includes SAE quick disconnect Battery Terminal and Alligator Clip leads for ease of use.
No. 9
GOOLOO S4 4 Amp Car Battery Charger Automotive, 6V/2A 12V/4A Smart Trickle Charger Maintainer with Supply Mode, Automatic Motorcycle Battery Charger for Truck Lawn Mower RV Boat Lead-Acid Battery
  • It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Designed for 6-volt and 12-volt lead-acid batteries, like WET, SLA, GEL, AGM, FLOODED, VRLA batteries, and more, plus 12volt LiFePO4 batteries.
  • Auto repair and pulse current charging devulcanize battery to restore the battery lost performance with the GOOLOO 10-stage intelligence charging program, and can charges batteries as low as 3 volt.
  • Intelligently adapt to different ambient temperatures to eliminate over-charging in hot climates and under-charging in cold climates.
  • The LCD display showing charging voltage, charging mode, battery levels.etc. 'V' blinks on the screen means enter maintenance mode.
  • Not only a battery trickle charger, also an advanced battery charger maintainer. A fully-automatic, worry-free smart battery charger for everyday and long time use with zero overcharge, for cars, automobiles, motorcycles, scooters, lawn mowers, ATVs, tractors, trucks, SUVs, RVs, boats, PWCs and more.
  • We provide an 18-month warranty, if you have any questions, please feel free contact us, our customer service team will provide you with technical support and warranty services.
No. 10
NOCO GENIUS2X2, 2-Bank, 4A (2A/Bank) Smart Car Battery Charger, 6V/12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV and Lithium Batteries
  • Meet the GENIUS2X2 - A two-bank battery charger for charging multiple batteries. It's the all-in-one universal charging solution for 2 batteries - battery charger, battery maintainer, trickle charger, float 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, ATVs, boats, RVs, trucks, lawn mowers, tractors and more.
  • Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
  • Enjoy precision charging - An integrated digital 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 - An advanced battery repair mode uses slow pulse reconditioner technology to detect 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 battery trickle charger, it's an advanced battery charger maintainer. A fully-automatic, worry-free smart battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of gas and diesel vehicles - Charge and maintain cars, automobiles, motorcycles, dirt bikes, scooters, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, snowmobiles, golf carts, classic cars, and more.
SaleNo. 11
DEWALT DXAEWPC4 Fully Automatic 4 Amp 12V Waterproof Battery Charger/Maintainer with Cable Clamps
341 Consomer Reviews
DEWALT DXAEWPC4 Fully Automatic 4 Amp 12V Waterproof Battery Charger/Maintainer with Cable Clamps
  • 4 amp battery charger/maintainer is compatible with any AGM, GEL, or WET automotive or marine 12V battery
  • Fully automatic high frequency charging; Offers 3 ways to connect: 12V DC accessory plug, powder coated battery clamps, or battery terminal rings
  • Features an IP67 rating which certifies a completely sealed, waterproof and dust proof housing capable of withstanding direct water or rain exposure
  • Offers 3 ways to connect: 12V DC accessory plug, heavy duty powder coated battery clamps, or battery terminal rings
  • Built-in circuit protection guards against overcharging, reverse polarity, and short circuiting; ETL Certified for performance and safety
No. 12
DWEII 3pcs Type C BMS 2S 3S 4S 1A 2A 4A 18650 Lithium Battery Charger Board USB C Step-up Boost Module for Li-Po Polymer Power Bank(3pcs 4S 2A)
  • 3pcs Type C BMS 4S 2A 18650 Lithium Battery Charger Board USB C Step-up Boost Module for Li-Po Polymer Power Bank(3pcs 4S 2A)
  • Input Type-C 5V; Operating Temperature-40℃ to +85℃;
  • Protection for Battery Voltage Being Low than Input and Short Battery Good adaptability to Input Supply with Limited Driving Capability
  • Size :39mm x 18mm x 6.3mm;Weight : 5g; Battery Overvoltage Protection
  • Led indicator : ''CR'' LED is charge status indicator ''OK'' LED is fully charged OR Constant voltage mode;
SaleNo. 13
Sailnovo 4A Battery Charger, 6V and 12V Smart Trickle Charger, 10-Stages 14.6 Volt LiFePO4 Automatic Battery Maintainer with Supply Mode for Motorcycle Car Lawn Mower Boat Marine Lead Acid Batteries
  • 【Meet the Sailvono 4A Battery Charger】An ALL IN 1 battery charger, 10-stages battery maintainer,trickle charger, and battery desulfator. Designed for all types of 6V and 12V lead-acid (Plus 12volt LiFePO4) batteries. Operating Temperature : -4°F to 104° F ( -20° Cto 40° C)
  • 【Wide Applycation】Perfect for 6-volt and 12-volt lead-acid automotive, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free batteries and more (Plus 12volt LiFePO4 Batteries) . Charge and maintain cars, automobiles, motorcycles, dirt bikes, scooters, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, snowmobiles, golf carts, classic cars, and more.
  • 【Pulse Repair to Restore Your Battery】Use advance pulse current charge technology, auto repair and pulse current charging devulcanize battery to restore the battery lost performance with the Sailvono 10-stage intelligence charging program, and charges batteries down to 3 volt.
  • 【Precise Charging】Using Large LCD Display, the battery charger automotive clearly and visibly shows an LCD screen displaying the charging status and battery status,'V' blinks on the screen means enter maintenance mode. Different modes set different off voltages to make optimal charging. A fully-automatic, worry-free smart battery charger for everyday use - 24/7 - with zero overcharge.
  • 【Supply Mode】Sailvoo 4A battery charger and maintainer can also be used as a DC power supply for powering some of the 12V DC devices( 5-14 volt, 3A MAX CURRENT) or as a memory keeper when replacing a battery.
  • 【Work in Different Climate】Intelligently adapt to different ambient temperatures to eliminate over-charging in hot climates and under-charging in cold climates.
  • 【Accessories & Protable】4A battery charger and battery maintainer with and 5-foot output cord. Fused-ring terminal harness for hard-to-reach batteries and alligator clip accessory cables.The convenient hooks for easy hanging on the wall, and weigh only 0.65kg (1.43lbs).
  • 【Safe & Secure】Use Upgraded IP 65 protection, which means you can use it anywhere with an outlet.Spark-proof circuitry ensures no-spark connections, and automatic reversed hook-up detection verifies correct connection. Offer 2-Year quality assurance & 12-Month refund & timely after-sale services,just get portable 6v 12v trickle charger for car batteries with confidence.
No. 15
hogardsujia 58.8V 4A Battery Charger for 48V (51.8V 52V) 14S Lithium Battery Pack with DC 5.5x2.1mm Plug
  • Fast Charging - Output Max 58.8V 4A, Input 100-240VAC, faster charging speed to save your time.
  • Well-Designed - The PCB board material in the lithium battery charger is FR-4, small size, light weight, high efficiency, which is stronger and more stable.
  • LED Tips - LED indicator lamp glows red when charging and green when charging is complete.This is an automatic battery charger which turns itself off when the charging cycle is complete to prevent overcharging.
  • Multiple Safety Protections - Overcurrent protection, overvoltage protection, short circuit protection, overheating protection, overcharge protection. Multiple safety protection designs make you safer and more assured in use.
SaleNo. 16
Car Battery Charger, 12V 6A Smart Battery Trickle Charger Automotive 12V Battery Maintainer Desulfator with Temperature Compensation for Car Truck Motorcycle Lawn Mower Marine Lead Acid Batteries
  • 【QUICK BATTERY CHARGER】12 volt 6-Amp quick car battery charger, can charge or repair all 12-volt and 24-volt lead-acid automotive, marine and deep-cycle batteries including AGM, GEL, SLA, Flooded in cars, trucks, SUVs, motorcycles, lawn mowers, boats, etc. Perfect household tool and gift for New Year!
  • 【WINTER HOLIDAY BATTERY HOUSEKEEPER】Smart control, temp compensation in hot or cold climates, reverse protection, cooling system, overcurrent, fireproof material, overcharge, short circuit. Battery trickle charger with multiple protections ensures the safety of charging perfectly for maintaining batteries for months over the winter or holidays. Avoid battery failure in advance. No worries!
  • 【HIGH-EFFICIENCY PULSE REPAIR】battery charger automotive detects battery sulfation and acid stratification, take newest pulse repair function to restore lost battery performance for stronger engine starts and extended battery life. NOTE: can not activate or charging totally dead batteries.
  • 【VISUALIZED CHARGING】 Large LCD display the charging and battery status; charge voltage, charge current, inside temperature, charge percentage, summer mode, winter mode, etc. More convenient to use.
  • 【PLUG AND PLAY】 no complicated steps, just plug and charge, stay at home and charge your batteries on your own. All-in-one battery solution as car battery charger, battery maintainer, trickle charger, plus battery desulfator. The must-have tool for your garage.
  • 【FLOAT/TRICKLE CHARGE】 Switch to float/trickle charge mode to maintain batteries over the winter: 1, Choosing corresponding modes(STD/AGM,GEL/WET/MOTORCYCLE) to fully charge the battery, screen display "FUL" 2, Then switch to "MOTORCYCLE" mode will auto-enter trickle charging mode to keep batteries stay charged for a long time.
SaleNo. 17
ABLY Battery Charger 8-Amp - 12V and 24V Automotive Trickle Charger for Car Battery, Fully-Automatic Temperature Compensation, Battery Maintainer for Car Truck Motorcycle Lawn Mower Boat Marine
  • [Do More with ABLY 8-Amp Battery Charger] ABLY Car Battery Charger is designed for all types of 12-volt and 24-volt lead-acid automotive, marine, and deep-cycle batteries, including AGM, EFB, GEL, SLA, Flooded (WET) in cars, trucks, SUVs, motorcycles, lawn mowers, boats, motorboats, etc. NOTE: LITHIUM BATTERY DISABLED.
  • [Enjoy Precision Charging] Optimized for any climate, easy to deal with various harsh voltage environments. 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. NOTE: IT CAN'T JUMP-START THE CAR, HAS A BATTERY CHARGING FUNCTION.
  • [Restore Your Battery] Built-in advanced battery REPAIR mode to help to recover old/idle batteries and extend battery life. If the battery cannot be charged, please use" REPAIR " mode. The high-frequency and low-frequency pulse technology has good repair and activation effects. NOTE: It can not activate a dead battery or repair a damaged battery;
  • [Intelligent LCD Touch Digital Display] Portable trickle charger for car battery with LCD screen displays battery status, charge voltage, charge current, inside temperature, summer mode, winter mode, etc., simple operation and an easy-to-read display—automatic charging and maintenance of your batteries for a long time when plugged in.
  • [Multiple Safety Protection, No Worries!] Adopt ABS flame-retardant shell, fireproof, electric shock, corrosion resistant, solid and durable, Built circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits and overheating, stable performance for longer life. This 12V 24V car battery charger ensures the adaptive charging process with maximum safety and automatically stops when fully charged.
No. 18
SKY TOPPOWER Battery Charger 6V/12V 4A Smart Battery Maintainer, with LCD Display,Fully Automatic Trickle Charger for Automotive Car Motorcycle, Lawn Mower,Motorcycle, Boats.
  • 🚜【WIDELY COMPATIBLE BATTERY CHARGER】🚜SKY TOPPOWER smart battery charger is a great helper for charging batteries, suitable for 6V/12V (1.2Ah-120Ah) lead acid batteries, it works with Calcium,AGM,EFB,MF, FLOODED, VRLA,SLA and Wet batteries, it can be used for the batteries in car motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more. ⚠️⚠️⚠️ NOT FOR LITHIUM BATTERY⚠️⚠️⚠️
  • 🚘【FULLY AUTOMATIC BATTERY CHARGER】🚘It only work with 110v, auto detects battery volts and outputs desired charging voltage and current, then auto switch to trickle charge after reaching full battery capacity. Has automatic charging process from ( DIAGNOSIS - DESULFATION - SOFTSTART - BULKCHARGE - ABSORBTION - TESTMODE - RECONDITION to FLOAT ), Specially designed for 6V/12V battery, charging current 1-4A ladder charging.
  • 🚖【LCD SCREEN & INTELLIGENT DETECTION】🚖 The battery charger maintainer adopt a backlit LCD display, clearly and visibly displays charging voltage, current, battery type, charging mode, and the percentage of power remaining. Allow quick and easy to use the trickle charger in the dark or at night. It also automatically detects batteries, maintain and charge them.
  • 🚚【SAFETY TO USE & MULTI PROTECTIONS】🚚This 6V/12V battery charger offers multi protections including circuit protection,spark free system,reverse polarity protection,over-charge,over-voltage and over-temperature protection, the automatic battery trickle charger is full-loaded and burn-in test proves its stable performance and high reliability.
  • ⛵【MANUFACTURER GUARANTEE 】⛵: Buying a portable 6v/12v trickle charger for car batteries, enjoy 30 days money free back, 12 month warranty service. Please contact SKY TOPPOWER freely for any query, will be replied within 24 hours.
No. 19
ACEIRMC 12pcs 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell
  • HIGH-ACCURACY, HIGHLY DURABLE: High-accuracy voltage detection circuit, fine workmanship and durable, Effective life greater than 50000 hours.
  • MULTIPLE PROTECTION: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection; A combination of 4 safety features that work together to provide ultimate protection
  • LOW STANDBY CURRENT: MOS transistor can control the battery charge and discharge, low standby current consumption.
  • WIDELY APPLICATIONS: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc.
  • ATTENTION: Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output.
SaleNo. 20
PulseTech XC400 Xtreme Charge 4 AMP Battery Charger Maintainer
  • Extended Battery Life - PulseTech uses patented technology to break down sulfation crystals back into the solution of vehicle batteries allowing them to recover, charge deeper and last up to 3x longer! A longer battery life reduces recycling and pollution, making our planet a better place to live. Our unique Pulse Technology has been independently tested by Ohio State University and proven to recover and extend the battery life of 12-volt lead-acid batteries.
  • The XC400 evaluates the battery during initial connection and tests it continually to determine the appropriate charge rate based on your battery’s current capacity and condition. This TEST step also includes a “Bad Battery” indication if it determines the battery is faulty and cannot be re-charged.
  • Pulse conditioning provided by PulseTech Products increases performance and life cycles of any size or type of 12V lead-acid battery.
  • Ultra Safe - Fuse-protected, spark-proof, and water-resistant battery charger. No overheating or overcharging no matter how long the battery maintainer is connected.
  • Advanced Design - 4-amp battery charger features Pulse Technology. Most battery chargers say their “pulse” loads batteries with a higher voltage charge to break off sulfation in larger pieces allowing amp hours to return to normal. This sulfation collects at the bottom, causing an arc of power to transfer from one plate to another shorting the cell. Our Pulse Technology breaks down sulfation crystals into the solution of vehicle batteries allowing the battery to recover and charge deeper.
  • In the box - The XC400 battery maintenance charger features a rugged plastic protective case. It comes with an eyelet lead and clip lead. Five-Year Limited Warranty.
  • Versatile Use: The XC400 battery charger and maintainer is perfect for all land or water vehicles like RVs, outdoor equipment, small boats or watercraft, and automobiles.
  • PulseTech is an American company with a team of customer service technicians to answer any questions you may have.

How to choose a good 4 amp battery chargers

Does the idea of finding a fantastic 4 amp battery chargers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in 4 amp battery chargers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top 4 amp battery chargers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top 4 amp battery chargers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top 4 amp battery chargers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top 4 amp battery chargers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the 4 amp battery chargers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good 4 amp battery chargers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your 4 amp battery chargers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting 4 amp battery chargers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our 4 amp battery chargers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what 4 amp battery chargers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on 4 amp battery chargers.