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The Best 4.2 V Charger of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 4.2 V Charger of 2022. Check our ranking below.

2,095 Reviews Scanned

Rank No. #1
EIKS Universal AC/DC 4.2V 1A Power Adapter Wall Charger for 18650 Battery LED Strip Shaver Groomer Clipper, with 8 Selectable Tips (4.2V-1A)
  • [WIDE INPUT VOLTAGE] US Adapter, with wide voltage design, able to fit most district: AC 100-240V, 50-60Hz
  • [DC OUTPUT VOLTAGE] DC 4.2V 1A/1000mA Max (Also Compatible with 800mA 600mA or lower current device), Wire Length:Approx. 2.8Ft
  • [INTELLIGENT CIRCUIT DESIGN] Built in protection circuit to protect your device: Over Voltage Protection, Over Heat Protection, Over Current Protection, Short Circuiting Protection
  • [STANDARD CONNECTOR] Original plug size is 5.5*2.5mm, also package with 8 replacement plug head to fit most of device: A-3.5*1.35mm, B-4.0*1.7mm, C-4.8*1.7mm, D-5.5*1.7MM, E-5.5*2.1mm, F-5.5*2.5mm, G-6.3*3.0mm, H-6.4*4.4mm.
  • [SAFE & RELIABLE] Built in high quality electronic components which improve the longer service life and make the adapter more reliable. The outer shell of adapter are made of fire-resistant materials, PC + ABS, be able to withstand high temperatures.
SaleRank No. #2
MEROM 4.2V 2A AC/DC Power Adapter for Lithium Universal Smart Battery Charger for 3.7V Li-ion Packs, Quickly Charge and Full Stop Automatically (4.2V 2000mA Output)
  • 【Specification】Input: AC 100V-240V, Output: 4.2V 2A, Length: 5FT/1.5M, High efficiency and reliability. Short circuit and over voltage protection,Certified by FCC, CE UL and ROHS.
  • 【Compatibility】For 3.7V Li-ion Packs charger ,Suitable for 3.7V 4.2V 1-string Lithium Battery Pack
  • 【Quality Assurance】With over-current protection, over-discharge protection, over-voltage protection, overcharge protection, short circuit protection.(Enter Protection mode , with flashing red light)
  • 【Notice】⚠️ ⚠️Output interface: 5.5 x 2.1mm (With built-in leaf spring, Compatible with 5.5x2.5 / 2.1mm ).Before buying, be sure to confirm that the interface size of this product matches with yours. Wrong size will not work! (Not for charging individual Li-ion unprotected cells)
  • 【Customer Service】Product refund period is 30 days, 12-month product exchange service and lifetime professional product technical support are provided as well. Having any question about our product, please contact us to get the quick answer.
Rank No. #3
iCreatin AC/DC 4.2V 2A Power Adaptor Lithium Battery Charger Single String Polymer Battery Charger 18650 Lithium Battery Charger Full Stop Automatically
  • Input voltage: AC 110V / 220V (AC100-240V suitable for anywhere in the world voltage level).
  • Output interface: 5.5 x 2.1mm (With built-in leaf spring, Compatible with 5.5x2.5 / 2.1mm ).Before buying, be sure to confirm that the interface size of this product matches with yours. Wrong size will not work!!!
  • Output: DC 4.2V 2A (Suitable for 3.7V 4.2V 1-string Lithium Battery Pack)
  • Output Wire length: 1m / 3.28ft.
  • With over-current protection, over-discharge protection, over-voltage protection, overcharge protection, short circuit protection.(Enter Protection mode , with flashing red light)
SaleRank No. #4
RAYNAKS Total MAX Output Current 4000mAh RC217 Quick Fast Speedy Charger 3.6V 3.7V 4.2V 21700 20700 18650 Circuit Protected Li-ion Rechargeable Batteries
  • Total Max Output Charging Current 4000mAh /One channel 4.2Volts 2000mAh ⅹ 2
  • Speedy Charging equally (one independent or two simultaneous battery charging)
  • Safety Protection/ Overcharging Prevention/ Overvoltage Prevention/ Overcurrent Prevention/ Reversed Polarity Prevention
  • Compatible with 3.6V 3.7V 4.2V 21700 20700 18650 Circuit protected Li-ion Batteries
  • Package Include 1x RC217 Battery Charger/ 1x 12V Adaptor/ 1x Car Adapter Code
Rank No. #5
26650 Battery Charger 2-Bay Fast Charging for 18650 26650 14500 3.7 4.2V Rechargeable Lithium Batteries - Not Battery
  • UNIVERSAL FLASHLIGHT CHARGER: The Li-On charger are used for rechargeable batteries, like Li-ion/LiFePO4 IMR INR ICR 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14430, 14500, 14650 and etc for LED flashlights.
  • SAFE CHARGER: The Li-On lamp charger was featured overcharge and over discharge protection, short circuit protection, smart identification of damaged batteries and battery reverse polarity protection. We adopted high quality PCB and meal parts to ensure long life of charger.
  • WIDELY USE: It works from USB interface at input 5V/2A, and output 4.2V/1A (1000mAh, others are normally 500mAh and slower than this charger) to charge a Li-ion battery. The design of input from USB port can be compatible with either a mobile device or car charger port.
  • QUCK CHARGING: Portable and convenient design to support global USB directly charging. With output of current at 1A, the flashlight charger is high speed to make charging faster than normal. After UL1310 testing and certification.
  • INDICATOR & SMART CHARGER: When the indicator is RED, it means no battery installed into the charger or it is charging; when it's GREEN, it means full charged; make sure you put the battery in position and it contacts with charger. Automatically detects the battery type and start charging or stop charging; no need extra setup to charge a 3.6V battery or 4.2V battery. This charger will protect your battery when it's full charged no matter how long you will leave the battery in the charger.
Rank No. #6
Zingpaw AC to DC 4.2V 3A Wall Charger Adapter Power Supplier for Household Electronics Devices LED Strip Shaver Groomer Battery with 5.5mm x 2.5mm Tip & 8 Replaceable Tips
  • [WIDE RANGE INPUT VOLTAGE] US power adapter, adapt to input AC 100-240V, 50/60Hz, designed with wide range input voltage, fit to most district power supply.
  • [DC OUTPUT VOLTAGE] Output DC 4.2V 3A/3000mA Max (Also Compatible with 2000mA 1000mA or lower current), Power: 12.6Watt Max., Polarity: Center Positive (+).
  • [CONVENIENT ADAPTER] The adapter with integrated design can not only provide the device with the right joint, but also provide the device with the right working voltage. The package also included 8 kinds of replaceable tips for different device demand.
  • [RELIABLE DESIGN] The adapter built-in high quality electronic components which will improve the longer service life of adapter and make the adapter more reliable. The outer shell of adapter are made of fire-resistant materials, PC + ABS, which be able to withstand high temperatures.
  • [WIDE APPLICATION] Universal AC to DC 4.2V adapter, replacement power supply for many kinds of small household electronics, like USB flash drives, mice, keyboards, external hard drives, webcams, digital cameras, game controllers, mobile devices, and numerous other peripheral devices and accessories.
Rank No. #7
KNACRO AC-DC 4.2V 1A Adaptor Lithium Battery Charger Suitable for 3.7V 4.2V Single String Polymer Battery Charger Lithium Battery Charger With LED Indicator Full Stop Automatically 5.5 * 2.5mm 2.1plug
  • Using high-quality components, intelligent dual IC program control circuit, chip motherboard design.
  • Charger with the flow, overcharge, short circuit, lightning, temperature, pressure, electromagnetic field protection and other functions, constant current output, full stop automatically.
  • 4.2V 1A lithium battery charger for the aircraft model aircraft, remote control airplanes, electric cars and other toy model aircraft / toys polymer battery pack.
  • ABS plastic, exquisite appearance, high temperature wear-resistant and durable.
  • Low loss, fast transmission, power supply with an output short circuit protection, overload protection, overheating protection.
Rank No. #8
E-outstanding 4.2V Dual-Slot Charger Flashlight Charger 18650 Charger Li-ion Rechargeable Battery Charger US Plug Charger
  • Made of high-quality materials, strong and durable, and long service life.
  • Safe charging and easy to use. Overheating, overcharge and overcurrent protection, short circuit and reverse polarity protection.
  • With a LED indicator: red light stands for charging status and green light for fully charged.
  • Only suitable for rechargeable batteries.
  • Size: 100x42x32mm/3.94x1.65x1.26"; Input Voltage: 110-240V 47/63Hz; Output: 4.2V/600mA.
SaleRank No. #9
PowerSource 7Ft Extra Long 4.2V UL Listed AC-Adapter-Charger for Multiple Wahl Trimmer-Shaver-Clipper Lithium-Ion Models Including 9888L 9916D 9818L 9918 S003HU0420060 ZD5F042060US Power-Supply Cord
  • IMPORTANT! Most Wahl shavers are not designed to be used while being charged. If your device doesn't work immediately after charging, please wait at least 15 minutes and try again. POWER SPECS - Output Max: 4.2V 1.0A / Input Volt Range: 110-240V / Original Wahl Charger AC Adapter Power Cord Replacement by PowerSource
  • COMPATIBILITY - This charger product is compatible with the following Wahl Trimmer-Shaver-Clipper-Razor-Groomer model numbers: 5622, 79600, 79600-2101, 79608, 8779, 97581-1305, 97581-405, 9818, 9818L, 9854, 9854L, 9854-600, 9860, 9864, 9865, 9867-300, 9876L, 9880L, 9880-100, 9880-116, 9888, 9888L, 9916D, 9918, 9918C, 9918D, 9918-6171, 9937, 9953; Part Numbers: PPL H12 796002101, Gma042060us, S003HU0420060, S004MU0400090, S005BDU0420060
  • SAFETY / UL LISTED - Underwriters Laboratories, the leading American consumer product testing laboratory, lists this PowerSource product as meeting their standards for electrical safety and design in the United States and Canada. Don't buy potentially inferior or dangerous chargers that can harm your laptop or worse!
  • PERFORMANCE, SAFETY, RELIABILITY - All of our product lines are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. We guarantee our products will charge your device as efficiently as the original charger, or any other replacement. In addition, our products are in compliance with top industry standards, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent, and internal overheating.
  • MONEY BACK GUARANTEE - As an American company, headquartered in Biloxi, MS, we are proud to stand behind our products as we greatly value repeat business. That’s why we offer an industry-leading return and exchange policy: Within 30 days of purchase, we offer a no-questions-asked full money back guarantee. Additionally, for two years from the date of purchase, we will exchange your product free of charge should it become defective. NOBODY beats our guarantee!
Rank No. #10
LM YN 4.2V 1A Power Adapter Li-ion Battery Charger with LED Indicator 5.5 x 2.5 2.1mm DC Interface Suitable for 3.7V 4.2V 1-String Lithium Battery Pack
  • NOTE:【The DC output port specification of this adapter is 5.5x2.5mm compatible with 5.5x2.1mm, which is not suitable for other specifications of the interface. Please be sure to confirm the DC port specifications of your device before ordering. If the two do not match, it will not work】
  • Input voltage: AC 120V / 220V (AC90-264V suitable for anywhere in the world voltage ).
  • Output: DC 4.2V±0.2V 1A (Suitable for 3.7V 4.2V 1-String Lithium Battery Pack),Output Wire length: 1.1meters / 3.6ft.
  • Output interface: 5.5 * 2.5mm / 2.1mm (With built-in leaf spring, Compatible with 5.5x2.5 / 2.1mm ).
  • With over-current protection, over-discharge protection, over-voltage protection, overcharge protection, short circuit protection.(Enter Protection mode , with flashing red light).

Last update on 2022-11-01 / Affiliate links / Images from Amazon Product Advertising API

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