The Best 21700 battery charger of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 21700 battery charger of 2022. Check our ranking below.
2,063 Reviews Scanned
Rank No. #1
Fenix are-A2 Smart Battery Charger for 21700/18650/16340 with EdisonBright BBX5 Battery Carry case
- Charge 1 or 2 batteries at the same time
- Compatible Batteries 10440 14500 16340 18650 21700 26650 Ni-MH / NiCd: AA, AAA and C
- Multiple levels of protection Short-Circuit Protection Over-Current protection, Over-Voltage protection, Reverse Polarity protection,
- LCD screen display
- Bundle includes EdisonBright BBX5 battery carry case
Rank No. #2
POWXS Universal Lithium 18650 Battery Charger for 3.7V Li-ion 18650 26650 18490 17670 17500 22650 21700 20700 18350 16340 RCR123A 14500, AA AAA & C Ni-MH Ni-CD Rechargeable Batteries
- ⚡⚡⚡High Speed Charging: With POWXS advanced charging technology, POWXS 18650 battery charger delivers a blazing fast charge to your batteries, max 950mA each slot output for 3.7V batteries and max 450mA each slot output for 1.2V Ni-MH batteries , provide the fastest possible charge to all Brand C/AAA/AA batteries and 3.7V batteries in 4 hours. Good efficiency to save a lot time for you !
- ⚡⚡⚡Micro-USB& Type-C Dual Input: Universal Micro-USB& Type-C dual input , POWXS Universal 18650 battery charger can adapt for any 5V 2A power bank, computer , car charger, USB Wall Charger etc. POWXS 18650 charger can freely charge batteries any time and anywhere.（comes with cord）
- ⚡⚡⚡Universal Battery Charger: POWXS 18650 battery charger can charge for any 1.2V Ni-MH C AA AAA batteries and 3.7V 18490 18350 17670 17500 16340（RCR123）14500 18650 Li-ion Batteries, easily charge 1 -4pcs of different kinds of batteries at one time , which is your home life good partner and the reliable travel friend.
- ⚡⚡⚡Multi Protection : POWXS smart battery charger adopted high quality fire-proof material, along with multiple protection technologies, could effectively keep your battery away from over-charging, over-current, over-voltage, over-heated and short circuit, etc. Which eliminate your worries about fire/explosion/battery leakage.
- ⚡⚡⚡Smart LCD Display: With smart LCD display, POWXS Universal AA AAA battery charger can easily let you know about the charging process. The LCD display could not only flash to show the real-time power capacity when charging, but also identify the bad batteries and give signal, make your charging experience more intelligent.
Rank No. #3
Fenix are-D1 USB Powered Smart Battery Charger for 21700/18650/16340 with EdisonBright BBX5 Battery Carry case
- Compatible with Battery Types 26650、21700 18650、16340 14500、10440 AA AAA C
- Batteries NOT included
- USB powered battery charger
- Single charging bay
- Bundle includes EdisonBright BBX5 battery carry case
SaleRank No. #4
Nitecore UMS4 Intelligent USB Four Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with LumenTac Battery Organizer
- FAST AND EFFICIENT CHARGING- Reach a maximum total of 2000mA when using a 2A output USB power adapter. Connect a quick charge (QC) power adapter for high speed charging and reach a single slot max output of 3000mA.
- LCD DISPLAY- Reports key realtime information such as battery health, charging status and charging mode.
- INTELLIGENT CHARGING- Automatically selects appropriate charging current and voltage.
- BATTERY TYPES & SIZES - Compatible with various battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and common battery sizes including (18650, 21700, 16340,14500 and more).
- PERFECT FOR TRAVEL AND EDC - This bundle includes a LumenTac battery organizer to keep you organized when you are on the go.
Rank No. #5
Nitecore UMS2 Intelligent USB Dual-Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with LumenTac Battery Organizer
- FAST AND EFFICIENT CHARGING- Reach a maximum total of 4000mA for two slots, 3000mA for one slot when pairing with a 9V QC2.0+ output USB power source. Reach a maximum 1000mA charging current per slot when paring with a standard 5V/2A USB source.
- LCD DISPLAY- Reports key realtime information such as battery health, charging status and charging mode.
- INTELLIGENT CHARGING- Automatically selects appropriate charging current and voltage to protect the batteries and prolong its lifespan
- BATTERY TYPES & SIZES - Compatible with various battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and common battery sizes including (18650, 16340,14500, rechargeable AA, AAA).
- PERFECT FOR TRAVEL AND EDC - This bundle includes a LumenTac battery organizer to keep you organized when you are on the go.
Rank No. #6
LCD-2 18650 21700 Battery Charger, LCD Displayable Capacity Mah, Intelligent Universal 2a Fast Charger, Suitable for 3.7v Li-Ion and 1.2v Ni-Mh/Ni-Cd Aa AAA Batteries
- [WIDE COMPATIBILITY]: Compatible With All 3.7v Lithium Batteries And 1.2v Ni-mh / Ni-cd AA Batteries. The Charger Will Automatically Recognize The Battery Type And Charge Independently. The Applicable Battery Length Ranges From 29mm To 75mm
- [LCD SCREEN FOR DETAILED INFORMATION]: 18650 Battery Charger Unique Button "C", Can Switch The Battery Charging Information Of Different Ports, Can Display Charging Time/charge Capacity, Battery Voltage, Charging Progress%, Battery Type, Charging Speed
- [SAFE AND ADJUSTABLE CHARGING SPEED]: 18650 Battery Charger Button "a" Can Switch 0.5a / 1a / 2a Charging Speed, Switch Between Slow Charging / Fast Charging As Needed, Unique Discharge Function Can Reduce Battery Damage, Smart The Circuit Provides Protection Against Short Circuit, Over Heat, Over Voltage And Over Discharge
- 【EXAMPLE OF CHARGING TIME】: The battery charging time is 2500mah AA 1.5 Hour, Amazonbasics 800mah AAA 0.5-hour At 1 Amp Rapid Current, Flat Top 3.7v 3400mah Lithium Ion Panasonic Ncr18650b 2-hour, 3.6v 2500mah Li Ion High Drain Lg He2 1.5-hour
- [Portable And Compact]: 2 Slot Battery Charger Design Can Charge 2 Different Batteries At The Same Time, It Becomes Your Best Travel 18650 Universal Charger. If You Encounter Any Problems During Use, You Can Contact Us.
SaleRank No. #7
XTAR VC4 Plus Battery Charger, 4 Bay Rechargeable 3A Fast Battery Charger Extend Version for 3.6V 3.7V IMR INR ICR for 1.2V AAA SC Ni-MH Ni-CD with QC3.0 Adapter
- ⚡[Smart Rechargeable Battery Charger] Upgraded battery charger from XTAR VC4S extend version, with USB C port and 18W adapter, able to charge Lithium-ion and Ni-MH batteries at the same time with different but suitable charging methods, Rechargeable batteries of 3.6V 3.7V 10440 14500 14650 16340 17335 17500 17670 18350 18490 18500 18650 18700 20700 21700 22650 25500 26650 32650 Li-ion and 1.2V AAAA AAA AA A SC C D Ni-MH Ni-CD are compatible with xtar VC4 plus rechargeable battery charger.
- ⚡[Smart LCD Display ] The smart LCD screen will show charging current, battery voltage, charging capacity, internal resistance and battery type of the rechargeable batteries on the screen when XTAR VC4 plus battery charger is connected to power supply and batteries are inserted
- ⚡[Special Design for Using ] 3A,2A,1A,0.5A and 0.25A optional charging current for your choice, stripe crack for better heat losing, upgraded microchip for multiple protection of the batteries, upgraded 3 operation modes for checking the health status of batteries, XTAR VC4 plus battery charger is designed to offer the best using experience
- ⚡[Triple Operation Mode] Fast 21700 battery charger XTAR VC4 PLUS can test your batteries’ real capacity with the grade mode. 18650 battery and charger VC4 Plus can maximize your batteries lifespan with the Storage mode
- 🥰[ Power up Your Rechargeable Batteries ] Get the rechargeable batteries reused and live a eco-friendly life! Before using a battery charger, please check your batteries to see if they are rechargeable and if they are compatible with the battery charger. You will get: VC4 Plus Charger, USB C cable, Manual, US Quick Charge 18W adapter 30-day money-back guarantee & 24-Month friendly customer servic. Please contact us if you have any issue, We will solve the issue for you within 24 hours.
Rank No. #8
Protected 21700 Charger XTAR New X2 3.7V 2 Bay Universal Battery Charger Protected 20700 Fast Charger with LCD Display for 18650 14500 26650 1.2V AA AAA Battery Max 2A with AC Adapter Mirco USB Ports
- XTAR Universal Charger: XTAR New X2 extended version can charge all protected 20700 and 21700 batteries and 3.6V/3.7V 14500-26650 Li-ion batteries, 1.2V Ni-MH and Ni-CD batteries, Charge for all your flashlights batteries.
- 18650 Fast Charger: As a Smart charger, it can Intelligently select the charging current among 0.5A for 2 slots, 1A for 2 slots and 2A for 1 slot, and fully charge a 18650 2500mAh battery in 1.5 hours with 2A current.
- Two Input Ports, More convenient: With AC input port and Micro USB input port, powered by the power cord and AC input port indoors ( Come with AC Adapter), or phone adapter and Micro USB port for outdoors charging.
- LCD dispaly battery charger , Innovative dial-LCD screen display power percentage, battery voltage, charge current, battery charged capacity. Compared to other chargers, it’s much easier for you to know the real status of your batteries.
- Nice Gift Choice, Package : 1* New X2 Charger（Without Battery）, 1*Power Cord, 1*Manual. (Stickers and battery sleeve will be randomly given as gifts). Any quality problems or questions, just feel free to contact us.If specific instructions are required, you may contact us via Amazon message for an electronic file user manual. If the product is damaged during transportation , please let us know and we will send a new one to you from Texas warehouse
Rank No. #9
IMREN 18650 Battery Charger for 3.7V Li-ion Rechargeable Battery 18650 18490 18350 17670 17500 16340 14500 21700 Lithium Battery (2 Bay)
- 【IMREN 18650 Battery Charger】- Compatible for 3.7V Li-ion Lithium-ion IMR INR ICR 26650 25500 22650 18650 18490 18500 18350 16340 RCR123A 14500 10440 Rechargeable CR123 CR123A Li ion Batteries.
- 【Extremely Compact & Convenient】- This 18650 battery charger is small enough that you can throw it in your pocket or purse, the best choice for traveling.
- 【IMREN USB Battery Charger】- The intelligent battery charger comes with worldwide usage USB input, applicable for 5V/2A power bank, computer, car charger, USB wall charger, etc.
- 【IMREN Smart Charger】- Input: DC 5V/2A，Output: 4.2V/2*1A(1000mA).2 slots work independently each slots is powered with 1A (1000ma), it will stop once completing charge intelligently. Really smart and fast battery charger for you.
- 【NOTE:】 -IMREN provides 24-hour after-sales service and will serve you wholeheartedly.Don't charge any non-rechargeable batteries, it will be danger.
Rank No. #10
Nitecore Ci2 2 Bay Universal Battery Charger Support 16340 14500 18650 21700 Lithium Ion AA AAA Ni-MH Ni-CD, USB-C QC PD with Lumentac Battery Organizer
- UNIVERSAL BATTERY CHARGER - The Nitecore Ci2 automatically detects and charges up to 2 Ni-Mh, Ni-cd or lithium ion batteries such as AAA,AA, 18650, 21700, 16340, 14500 and more.
- FAST CHARGING - reaches a single slot maximum charging current of 3000mA equipped with a USB-C input that is QC PD compatible.
- BUILT-IN SAFEGUARDS - Built from durable fire retardant materials the Ci2 provides multiple charging safeguards to prevent reverse polarity, overcharge, and overheating.
- LIGHTWEIGHT AND COMPACT - Weighing 4.25 ounces and less than 6 inches in length, the lightweight and compact size of the Ci2 allows you to carry it with you on the go.
- CONTENTS - Nitecore Ci2, USB-C Charging Cable, LumenTac Battery Organizer
Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API
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- Brand Value: Every brand of 21700 battery 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.
- Features: What bells and whistles matter for an 21700 battery charger?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your 21700 battery charger.
- Customer Ratings: Number ratings grade 21700 battery charger objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 21700 battery charger.
- Product Quality: You don’t always get what you pay for with an 21700 battery charger, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an 21700 battery charger is should be an indication of how long it will work out for you.
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