Best 4 Amp Battery Chargers In November 2024

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Choosing the Best 4 Amp Battery Chargersmay be challenging as you have to screen through the large amount of similar products available on the market. Don’t worry though; we have got our hands on 10 trendy and top rated products and below is our recommendation.

To help you in your search, we have completed this list of the Best 4 Amp Battery Chargers.

Top Rated Best 4 Amp Battery Chargers Of 2024

Rank	Product Name	Score
1	GOOLOO 6V/12V Smart Battery Charger and Maintainer 6-Amp Full Automatic 6-Stages Trickle Charging Buy Now	9.7 Buy Now
2	4 amp fully automatic microprocessor controlled battery charger/maintainer Buy Now	9.5 Buy Now
3	Jethax 12V 4A Smart Car Battery Charger, Fully Automatic 3-in-1 Portable Battery Maintainer Buy Now	9.1 Buy Now
4	BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with Detachable Alligator Rings Buy Now	8.8 Buy Now
5	Automatic Smart Battery Charger/Maintainer 12V/8A 24V/4A Pulse Repair Charger with LCD Display Buy Now	8.6 Buy Now
6	NOCO Genius GENM1 4 Amp 1-Bank On-Board Battery Charger Buy Now	8.3 Buy Now
7	CRAFTSMAN V20 Lithium Ion Battery, 4.0-Amp Hour, 2 Pack (CMCB204-2) Buy Now	8.1 Buy Now
8	Adakiit 6/12V 4A Smart Battery Charger/Maintainer Fully Automatic 8-Stages Trickle Charger for Automotive Buy Now	7.8 Buy Now
9	Battery Tender 4 Amp Battery Charger and Maintainer: Switchable 6V / 12V, Automotive Buy Now	7.5 Buy Now
10	EasyAcc 26000mAh Power Bank(4A Input 4.8A Smart Output) External Battery Charger Portable Charger Buy Now	7.2 Buy Now

1. GOOLOO 6V/12V Smart Battery Charger and Maintainer 6-Amp Full Automatic 6-Stages Trickle Charging

• Smart battery maintenance - maintain various types of 6v 12v lead-acid batteries that more than 100ah. intelligent control system, strong pulse repair technology, remove vulcanization, repair slightly damaged batteries, reduce water loss, can extend the battery life. make your battery more powerful.
• 6-stage automatic charging - 12v battery charger operated with 6 stages automatic charging process by mcu controller: desulfation, soft start, bulk, absorption, battery test, floating/trickle to indicate quantity of electricity and monitor the whole charging progress. stop automatically when the battery is fully charged. (cautions: only 12v battery supports trickle char...
• Intelligent detection & intuitive lcd screen - when low-voltage, vulcanized or capacity loss is detected, lst battery maintainer charger directly prompt user to repair and charge or the battery has lost its value. and lcd screen displays charging status, battery voltage/current, battery status clearly, provide visual feedback and diagnostic information even when in main...
• Compatibility- works with all types of 6v and 12v lead-acid batteries that less than 100ah, such as agm, gel, sla, flooded(wet), calcium type deep cycle automotive or marine 4.0ah-100ah 12v battery. gooloo battery maintainer charger is a great choice for cars, trucks (small), motorbike, lawn mowers, tricycles, electric vehicles, agricultural vehicles, off-road vehicles,...
• Multiple safety protection functions made of fire retardant materials. multiple security protections , such as over current protection, over charge protection, over heat protection, reverse connection protection, short circuit protection, full charged stop protection, etc.

2. 4 amp fully automatic microprocessor controlled battery charger/maintainer

3. Jethax 12V 4A Smart Car Battery Charger, Fully Automatic 3-in-1 Portable Battery Maintainer

• 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 mo...
• 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.
• 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 switche...
• Lab-tested safety protection: stringently lab-tested in ul (underwriters laboratories) certified testing facilities, our trickle battery chargers 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 th...
• 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 m...

4. BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with Detachable Alligator Rings

• Upgraded defective battery detect/fast charging car battery boosterupdated with battery condition diagnose to detect the defective battery before charge. dc output 13.8v/5a, ac input 100-240v, 1.5a 60/50hz, with 5a dc output current, bmk 12v 5a car battery charger is suitable for charging batteries with 15-100ah. note: to better tender the battery, please make sure th...
• Upgraded with 10a fuse onto ring connectors & multi-purposes deep cycle battery chargerpb/sla/vrla/gel/agm lead acid battery charger tender, operated with vulcanization function, bmk battery maintainer charger is a great choice for lawn mower, boat, car, motorcycle, electric vehicle, electric tools and emergency battery charging, lightweight(15.87oz) allows you take i...
• Qualiry ensurance & in time servicebmk is devoted to provide boat battery trickle charger with higher qulality to meet buyers' needs better and timely after-sale services, eliminate all your worries about getting this trolling motor battery charger. just get your automotive car battery charger maintainer with confidence, and contact us if you have any problems about t...
• 4-stage smart charging - fully automatic boat battery charger 12v battery charger operated with 4 stages automatic charging process by mcu controller, 25%/50%/75%/100% to indicate quantity of electricity and monitor the whole charging progress. stop automatically when the battery is fully charged. led indicator designed to display different charging status of the 12v ...
• Upgraded 72-hour safety features/multi safety protections - battery rescue & recoverupdated with 72 hours safety feature to commence anytime the charger is onto protect marginal batteries from over charging. made of high quality abs, ip65 waterproof, multi-protects of short circuit/ ov/ oc/ overload/ polarity reverse, featured with constant pulse current maintenance f...

5. Automatic Smart Battery Charger/Maintainer 12V/8A 24V/4A Pulse Repair Charger with LCD Display

• Microprocessor-controlled - automatically adjusts the charge current and maintainability. automatic voltage detection:detection for 12v or 24v battery. finger touch charging mode button
• Pulse repair function can help to repair your loss battery and extend battery life. note: it can not activate a dead battery or repair a battery which is damaged seriously, it also can not repair a battery back to 100% new.
• Simple and practical to use: using a backlit lcd display, the foxsur battery charger clearly and visibly shows lcd screen displays charging status and battery status, charge voltage, charge current, inside temperature, battery full summer mode, winter mode, etc.
• Highly compatible: suitable for both 12v and 24v batteries, it works with sla, wet, mf, flooded, gel, vrla, agm, efb batteries, meaning that it can be used for the batteries in cars, motorcycles, boats, mowers and others.
• Total protection: the battery charger offers safety features including reverse-polarity protection, over-current protection, overload protection, over-voltage protection, over-charge protection, and over-temperature protection.

6. NOCO Genius GENM1 4 Amp 1-Bank On-Board Battery Charger

• Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection.
• One of the most advanced battery chargers in its class, which is certified to ul1236, iso 8846, 33 cfr 183. 410, plus backed by a 5-year .
• Rugged and waterproof construction capable of submersion down to 3-meters and rated ip68 and nema 6p.
• A 4 amp (4 amp per bank) on-board battery charger for charging and maintaining one 12-volt battery.
• Safely charge all types of lead-acid batteries from 20-120ah, including wet, gel, agm, and deep-cycle batteries.

7. CRAFTSMAN V20 Lithium Ion Battery, 4.0-Amp Hour, 2 Pack (CMCB204-2)

• 3 year limited warranty, refer to "warranty & support" section below for full details
• Material type: plastic
• 3-led state of charge indicator for immediate battery charge feedback
• Pack of (2) 20 v max 4 ah high capacity lithium batteries
• Longer cycle life resulting in an extended battery life
• High capacity batteries provide extreme runtime for heavy duty jobsite applications

8. Adakiit 6/12V 4A Smart Battery Charger/Maintainer Fully Automatic 8-Stages Trickle Charger for

• Intuitive lcd screen &intelligent detectionthe battery charger maintainer provides you 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 ...
• 8-stage smart charging - fully automatic battery charger8-stages automatic charging process diagnosis - desulfation - softstart - bulkcharge - absorbtion - testmode - recondition - float by mcu controller,25%/50%/75%/100% to indicate quantity of electricity and monitor the whole charging progress.stop automatically when the battery is fully charged.perfect for year-...
• Multi safety protections - battery rescue & recoverthis battery charger offers multi protection against reverse polarity, short circuit, over voltage/current, over charge/discharge, overload, overheat, features constant pulse current maintenance function to avoid overcharge and discharge, full-loaded and burn-in test prove its high reliable efficiency, stable performance
• Qualiry ensurance battery maintainer- updated with battery condition diagnose to detect the defective battery before charge and 72-hour safety features, just get portable 6v 12v trickle charger for car batteries with confidence, adakiit smart battery charger offer 2-year quality assurance & 12-month refund & timely after-sale services.
• Multi-purposes battery charger6v 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 5...

9. Battery Tender 4 Amp Battery Charger and Maintainer: Switchable 6V / 12V, Automotive

• 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 charger 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
• Safe and secure: our battery charger 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. 5 year industry leading warranty
• Stay charged: the 4 amp charger 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
• 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

10. EasyAcc 26000mAh Power Bank(4A Input 4.8A Smart Output) External Battery Charger Portable Charger

• Fast charging: 4.8a output with 4 usb ports. charging 4 devices simultaneously. auto detects and changes its charging speed unique to your device for fastest charging speed up to 2.4a as quickly as plugging it into the wall (2 times faster than a computer usb port)
• Safety protection: sophisticated protection ics that effectively prevent overcharge, overcurrent and short circuits as well as conform to ce, rohs, and fcc specifications. package includes: easyacc power bank, micro-usb charging cable and user guide. outstanding customer service provides 18 months warranty
• Just one enough on-the-go. the top rated power bank.
• 26000mah high capacity: charge an iphone 6 up to 10 times, a samsung s6 up to 7 times or an ipad mini 3 about 2.8 times. no need to worry about your battery running out.
• Save time: 4a input dual port design, can be filled up in 8 hours, reduce the recharging time up to 50%.