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

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

2,989 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)
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.
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Rank No. #2
MTYTOT 4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug
MTYTOT 4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug
  • Input: 100-240 V AC 50/60 Hz; Output: DC 4.2V 1A(1000mA) MAX .
  • DC plug size: 5.5mmx2.5mm ; Inside diameter is positive” +”,outer diameter is negative” - “; Please confirm whether the DC interface of this adapter matches the interface of your device before purchasing.
  • This product has many kinds of protection functions, With over-current protection, over-voltage protection, overcharge protection, short circuit protection.enter the protection mode, LED lights will flashing red light. When this happens, unplug the adapter immediately and check if the circuit is short-circuited, if the electrical power exceeds the rated power of the adapter, etc.
  • 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.
  • the adapter used for the aircraft model aircraft, remote control airplanes, electric cars and other toy model aircraft / Less than 1A
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SaleRank No. #3
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
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）.
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Rank No. #4
iCreatin AC/DC 4.2V 2A Power Adaptor Lithium Battery Charger Single String Polymer Battery Charger 18650 Lithium Battery Charger Full Stop Automatically
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）
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Rank No. #5
5PCS 3.7V 4.2V Lithium Liion Battery Charger Board Adjustable DC-DC Step Up Module Boost Charge Discharge Integrated Module TP4056 DIY Kit Parts
5PCS 3.7V 4.2V Lithium Liion Battery Charger Board Adjustable DC-DC Step Up Module Boost Charge Discharge Integrated Module TP4056 DIY Kit Parts
  • The charge boost and discharge integrated module for 3.7V Lithium Battery
  • Input voltage: 4.5-8V DC; Output voltage: 4.3-27V DC (Continuously adjustable); Charging voltage: 4.2V DC; Charging current: Max. 1A; Discharging current: Max. 2A
  • NOTE: The OUT+Port can output an adjustable voltage.
  • Application:The module can be can be used for multimeter, converted to lithium battery charging. For example: VIN+Port input 5V solar panels, BAT+port can output 4.2V to charger 3.7V 18 650 battery
  • Package included: 5 x Step Up Boost Module
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Rank No. #6
Charger for Wahl Trimmer 9818 9818L 9888L 9854L 9876L Groomer Clipper 9854-600 97581-405 9867-300 79600-2101 97581-1105 S004mu0400090 Replacement Wahl Shaver Trimmer Power Cord 4V 1A (Compatible 4.2V)
Charger for Wahl Trimmer 9818 9818L 9888L 9854L 9876L Groomer Clipper 9854-600 97581-405 9867-300 79600-2101 97581-1105 S004mu0400090 Replacement Wahl Shaver Trimmer Power Cord 4V 1A (Compatible 4.2V)
  • Power Specifications: Input 110V-240V, Output 4V 1A (Compatible with 4.2V 1A), Length of power cable: 6.0FT/1.8M（You will receive a replacement Wahl charger）
  • Safety & Reliable: this CE FCC RoHS certied 4V~4.2V for wahl groomer clipper charger enables a variety of protections through a built-in chip management system, including over current protection, over voltage protection, short circuit protection, over temperature protection
  • Replacement Wahl Shaver Trimmer Power Cord : This replacement Wahl Clipper charger power cord has been fully tested and tested with Wahl hair clippers and trimmers to ensure it can be used in charge of the WAHL Hair Clipper series products
  • The for wahl charger compatible models: Compatible with Wahl Clipper and Trimmer 9818 (old model), 9818L (old model), 9888L, 9888-600, 9880L, WNT-8, WNT-9, 9766, 9818-5001, 9854, 9854L, 9854-2401, 9854-600, 9854-600B, 9860, 9860-700, 9864, 9865, 9865-2801, 9867-300, 9876, 9876L, 9891-100, 8777 8779 8779L, 9916-4301, 9916-4501, 9916-1008, 9916-1117, 9918C, 9918D, 9918-6171, 9937, 9953-1301, 79600-2101, 79600-2102, 79600-2101P, 79600-3301, 79608, 97581-405, 97581-1105, 97581-1305, 97581-6005, 97619-1000 97620
  • Replacement wahl trimmer power cord P/N: S003HU0420060 S004MU0400090, S005BDU0400090, S005BDU0420060, ZDJ037010US, ZDJ035100US, ZDJ035020US, ZD5F042060US, RHD10W060100, GMA042060US. Still Fit with Wahl Groomsman Beard Trimming 5621 5622 5623
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Rank No. #7
SoulBay 4.2V Charger Cord for Wahl Trimmer Clipper 9818 9818L 9854L WNT-8 WNT-9 9864 9876L 9880L 9888L Lithium Ion Beard Shaver Groomer S003HU0420060 S004mu0400090 Class 2 Power Supply Replacement
SoulBay 4.2V Charger Cord for Wahl Trimmer Clipper 9818 9818L 9854L WNT-8 WNT-9 9864 9876L 9880L 9888L Lithium Ion Beard Shaver Groomer S003HU0420060 S004mu0400090 Class 2 Power Supply Replacement
  • COMPATIBILITY: charger for Wahl WH Clippers Groomer Shaver Trimmers 9818 9818L 9880L 9888L 9865 9854 9854L 9860 9876 9876L 9766, 8779 8777 8779L, fv9880L 09864, 9864 9916D 9918D 9918C 9937, WNT-8 WNT-9, 5623 5622 5621, 79608 and more.
  • REPLACEMENT CHARGER: Wahl S003HU0420060, Gma04206ous, 9854-600, 9867-300, 9591-2100, 97581-405, PPL H12 9600-2101, 600-2101, 09854-600B 79600-2101P 796002101 S004mu0400090 ZDJ035020US ZDJ035100US ZDJ037010US part number power cord.
  • SAFE & RELIABLE: Certificated by ETL/CE provides Over-Load protection, Over-Current protection and Short Circuit protection! ( Note: this charger is only for the listed Wahl clippers models. )
  • SPECIFICATIONS: Input: AC 100-240V 50/60Hz. Output: DC 4.2V 600mA (1A max), 4V compatible, US standard plug( NOTE⚠️trimmer model 9818&9818L only for Round plug, not for new model with trapezoidal plug; Please Check the charging port type carefully!)
  • POWER CORD: Measures 5 Feet in length, long enough to charger your WAHL beard groomer clipper in daily use. Charging indicator light on the back turns Red when charging, turns Green when fully charged.
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Rank No. #8
KNACRO AC-DC 4.2V 1A Adaptor Lithium Battery Charger Suitable for 3.7V 4.2V Single String Polymer Battery Lithium Battery Charger with LED Indicator Full Stop Automatically 5.5mm * 2.5mm 2.1mm Plug
KNACRO AC-DC 4.2V 1A Adaptor Lithium Battery Charger Suitable for 3.7V 4.2V Single String Polymer Battery Lithium Battery Charger with LED Indicator Full Stop Automatically 5.5mm * 2.5mm 2.1mm Plug
  • Input voltage: AC 110V / 220V (AC100V-240V suitable for anywhere in the world voltage level).
  • 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.
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Rank No. #9
26650 Battery Charger 2-Bay Fast Charging for 18650 26650 14500 3.7 4.2V Rechargeable Lithium Batteries - Not Battery
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.
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Rank No. #10
18650 Battery Charger 2 Bay for 18350/26500/Li-ion/Ni-Cd/NiMh Rechargeable Batteries, 4.2V 1A USB Charging
18650 Battery Charger 2 Bay for 18350/26500/Li-ion/Ni-Cd/NiMh Rechargeable Batteries, 4.2V 1A USB Charging
  • Universal battery charger for AAA/AA/Ni-MH/Li-Ion/Ni-Cd rechargeable batteries
  • Input: DC 5V 1-3A, Output: DC 4.2Volts 1000Mah
  • Independant double battery charging slots, Built-in metal pong and springs for one hand easy operation
  • USB plug power thourgh power bank, car charger, wall charger, ac adapter, Laptop or PC
  • 2.5 feet charging cord
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Last update on 2023-04-26 / Affiliate links / Images from Amazon Product Advertising API

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  1. Brand Value: Every brand of 4.2V Charger has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 4.2V Charger?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 4.2V Charger.
  5. Customer Ratings: Number ratings grade 4.2V Charger objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4.2V Charger.
  7. Product Quality: You don’t always get what you pay for with an 4.2V Charger, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 4.2V Charger is should be an indication of how long it will work out for you.

We always remember that maintaining 4.2V Charger information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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