The Best 18650 Capacity Tester of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best 18650 Capacity Tester of 2022. Check our ranking below.

2,229 (random num) Reviews Scanned

Rank No. #1

DWEII 1pcs 18650 Lithium Battery Capacity Tester Module MAh MWh Digital Battery Power Detector Module 18650 Tester Type-C (4 Channel)

1pcs 18650 Battery Capacity Tester LCD Display Digital Automatic Charge and Discharge Internal Resistance Tester MAh MWh Lithium Battery Type-C Port Tester with Type-c to USB Cable
Supports four-channel capacity and internal resistance measurement.（(User manual available if do as follow: click "DWEII"(you can find "Sold by DWEII" under Buy Now button), in the new page, click "Ask a question".)we will send you the manual asap）
Measurement parameters: Working voltage: DC5V;Detection voltage: less than or equal to DC5V;Capacity measurement range: 0~99999mAh;Battery internal resistance measurement: support;Measurement error is about 10%;Display real-time voltage/power/current: support;Discharge load: 10W.
Applications：The 18650 battery capacity tester is specially used to check the capacity, internal resistance, voltage, current, power and other information of the 18650 battery.The integration of charge and discharge saves the tedious operation of disassembling and assembling the battery when replacing the equipment。
The 1.77 inch screen simultaneously displays information such as internal resistance, capacity, voltage, current, and battery level, providing comprehensive data for analysis

Rank No. #2

EBL 18650 Battery Charger with Discharge & Testing Functions, Lithium Battery Charger for 3.6V/3.7V/3.85V Li-ion/IMR/INR/ICR/3.2VLiFePO4, 1.2V Ni-MH/Ni-CD Rechargeable Batteries

PD4 Universal Charger: For 3.7V/3.6V/3.85V Lithium ion/IMR/INR/ICR 3.2V LiFePO4 rechargeable batteries 18650/26650/21700/10440/14500/14650/RCR16340/16650/17500/17650/17670/18350/18490/18500/20700/22700/26700/32650/32700, 1.2V Ni-MH Ni-Cd rechargeable AA AAA C SC D.
Multi-Functional 18650 Battery Charger: Designed with Discharging Function, Capacity Test Function, '0'V Activation Function, Auto-Cut Off Function, Adjustable Charge Current, and Auto-identify Battery Types, can make rechargeable batteries maximize their best capacity.
Fast Battery Charger: The battery charger with 4 individual speedy charge slots, and max charge current of channels 1 and 4 up to 2000mA is 4 times faster than a normal lithium charger.
Smart LCD Screen: The rechargeable battery charger with a large LCD screen, not only shows real-time comprehensive and accurate information on battery charge status, but also the battery type and charge time.
Safety Guarantee: The smart battery charger with over-charging protection, over-current protection, over-voltage protection, over-heat protection, short-circuit protection, and reverse polarity, make sure your safe charging.

SaleRank No. #3

ZORZA 1Pcs Type-C 18650 Battery Capacity Tester Lithium Battery Internal Resistance Tester 4-Channel Automatic Charge Discharge Module for Flat Ends 18650 Batteries

Our battery tester supports independent 4-channel internal resistance and capacity measurements, allowing you to accurately assess your batteries.
It features a charging function with automatic cutoff when the batteries are fully charged, ensuring their safety and longevity.The discharge function automatically stops when predetermined conditions are met, preventing over-discharging.In automatic charging mode, it supports up to 9 cycles of charging and discharging, optimizing battery performance.
The compact design of the 18650 battery holder supports flat top batteries and allows for easy measurement (compatible with batteries with discharge voltage between 2.5V and 3.5V, and charging voltage at 4.2V).Please note automatic charging and discharging function is not suitable for lithium iron phosphate batteries.
Switching between Chinese and English interface: Press and hold the "Menu/M" button while powering on. Release the button when the screen lights up. After turning on, wait for 10 seconds before disconnecting the power. When powered on again, the language switch will be completed.
This battery tester operates on a DC5V power supply and is equipped with dual Type-C ports (power cord not included, compatible with C-type phone cables). It utilizes a direct current two-wire method for internal resistance measurement and provides status indicators. It also offers high-temperature protection and active heat dissipation.

Rank No. #4

WISSBLUE 18650 Battery Charger, LCD Screen Can Display Capacity, Adjustable 2A 18650 Charger, Suitable for 26650 21700 18350 17500 14500 18650,NiMH NiCd AAA AA

【WIDE COMPATIBILITY】: The Fast 18650 Charger Is Compatible With All 3.7v Lithium Batteries And 1.2v Nimh/Nicd Aa Aaa Batteries. Smooth And Durable Stainless Steel Rails For Cell Lengths From 34mm To 75mm
【SMART LCD DISPLAY】;Lcd4 18650 Charger Monitors Detailed Real Battery Condition, Time Per Charge/Charging Capacity, Battery Voltage, Charging Progress %, Battery Type, Charging Speed To Identify The Real Capacity Of The Battery
【SAFELY ADJUST CHARGING SPEED】: Switch Between Slow/Medium/Fast Charging As Needed, Shorten Charging Time By Up To 35%, Intelligent Circuit To Prevent Short Circuit, Overheating, And Overvoltage，Automatic Stop When Full
【18650 BATTERY CHARGING TIME】: 2.3 Hours Full Lithium Ion Panasonic Ncr18650b 3400mah, 3.5 Hours Full 21700 Battery 5000mah, 0.5 Hours Full Amazonbasics 800mah AAA Battery,1.5 Hours Full Eneloop 2500mah AA, 1.5 Hours Full 3.6v 2500mah Lithium Ion High Power Consumption Lg He2
【UNIVERSAL CHARGER】: Universal Usb Interface, You Can Use Solar Charger, Mobile Power, Computer, Car Charger, Usb Wall Charger, Etc. To Charge 18650 Batteries Anytime And Anywhere. Best 18650 Battery Charger 4 Slots, Suitable For Home Or Outdoor

Rank No. #5

IMREN 18650 Capacity Tester,18650 Battery Charger with Discharge & Testing Function, 21700 Battery Charger with LCD Screen Display Capacity Suit for 18650 21700 20700 1.2V Ni-MH/Ni-CD LiFePO4 Battery

【Automatic LCD Display】- This is a smart 18650 battery charger with LCD Display, Automatically adjust and choose the best charging current for different batteries to maximize battery life, also could automatically detect Li-ion and Ni-MH batteries at same time or separately. Comes with a car adapter, easily charge your 18650 batteries in your big truck
【C4 Channel 18650 Battery Tester】-Put the 18650 battery into the charger's C4 channel,then Press SLOT and MODE both keys for 2 seconds till flashes.After 5 seconds,it will automatically enter Battery Capacity Analysis Mode.In this mode,the battery is first fully charged,and then discharged at a constant current of 500mAh.After a cycle process of charging and discharging, the capacity of the corresponding battery is displayed on the screen. (only for the C4 channel 18650 battery tester)
【18650 Battery Charger】- the Battery Charger suit for IMR / Li-ion(4.2V / 4.35V) / LiFePO4(3.6V) 10340 / 10350 / 10440 / 10500 / 12340 / 12500 / 12650 / 13450 / 13500 / 13650 / 14350 / 14430 / 14500 / 14650 / 16500 / 16340(RCR123) / 16650 / 17350 / 17500 / 17650 / 17670 / 18350 / 18490 / 18500 / 18650 / 18700 / 20700 / 21700 / 22500 / 22650 / 25500 / 26500 / 26650 Ni-MH / Cd(1.48V) A AA AAA AAAA C SC.(Support car charge, Includes Car Adapter)
【1000mA*4pcs 18650 Battery Charger】- The battery charger with 4 individual speedy charge slots, and the charge current 1000mA*4pcs 18650 Battery. The Charger can Charge 4PCS 3000mAH 18650 batteries at the same time in just 3 hours;The 18650 charger Input：AC 110-240V 50/60Hz, DC 12V
【Practical slot and smart LED】- Short press "SLOT" to view C1, C2, C3, C4, the information displayed on the current screen is the charging status information for each channel. This 21700 battery charger with large screen can show charging capacity, battery voltage, percentage, charging time, easily to understand the charging datum. The 18650 battery charger LCD back-light will become dark after 30 sec. without any operation

Rank No. #6

1PACK 18650 Lithium Battery Capacity Tester Module MAh MWh Digital Battery Power Detector Module 18650 Battery Tester Type-C

❃❃LCD Display: The 1.77in screen displays internal resistance, capacity, voltage, current, power and other information at the same time.
❃❃This battery capacity tester is mainly used for test the capacity of 18650 battery
❃❃Supply Voltage: DC5-12V lithium battery (not include)；Measurement Accuracy: 1mAH；Standby Current: 5mA；Discharge Current: About 500mA；Load Power: 10W 8Ω

Rank No. #7

WWZMDiB 2Pcs ZB2L3 Battery Capacity Tester Discharge Type 1.2-12V External Load Capacity of The Battery and Other Tests 18650 Tools

💎【ZB2L3 Battery Capacity Tester】:Discharge Type 1.2-12V External Load Capacity of the Battery and Other Tests 18650 Tools
⚡【Supply Voltage】:DC4.5-6V MAX 3A
⚡【Discharge Voltage】: 1.00V-15.00V Resolution 0.01V ;
📐【Product Size】: 50 x 36 x 17mm (Containing copper foot height)
🥇Support Detection 18650 Li-ion Lithium Lead-Acid Battery

Rank No. #8

DWEII 2PACK 18650 Lithium Battery Capacity Tester Module MAh MWh Digital Battery Power Detector Module 18650 Battery Tester Type-C (4 Channel)

2PACK18650 Battery Capacity Tester LCD Display Digital Automatic Charge and Discharge Internal Resistance Tester MAh MWh Lithium Battery Type-C Port Tester with Type-c to USB Cable
Supports four-channel capacity and internal resistance measurement.
Measurement parameters: Working voltage: DC5V;Detection voltage: less than or equal to DC5V;Capacity measurement range: 0~99999mAh;Battery internal resistance measurement: support;Measurement error is about 10%;Display real-time voltage/power/current: support;Discharge load: 10W.
Applications：The 18650 battery capacity tester is specially used to check the capacity, internal resistance, voltage, current, power and other information of the 18650 battery.The integration of charge and discharge saves the tedious operation of disassembling and assembling the battery when replacing the equipment。
The 1.77 inch screen simultaneously displays information such as internal resistance, capacity, voltage, current, and battery level, providing comprehensive data for analysis

Rank No. #9

ZORZA 1Pcs Dual-Channel 18650 Battery Internal Resistance Tester Accurate Battery Capacity Tester Master Your Battery Health & Capacity with Auto Charge-Discharge & Type-C Power Module DC5V

Unleash the full potential of your 18650 lithium batteries with our state-of-the-art 18650 Battery Internal Resistance Tester. Precision-engineered for accuracy and reliability, this multifunctional device is your go-to solution for comprehensive battery health assessment, including capacity testing. Powered by DC5V via a Type-C interface, it's designed for the discerning electronic enthusiast, battery maintenance professionals, and engineers alike
Innovatively utilizing a direct current 2-wire method, our Battery Health Tester delivers high precision in full-charge condition measurements, making it ideal for comparative analysis among batteries of the same batch. Catering to a wide range of applications, from home use to workshops, it's the perfect tool for ensuring your batteries' performance and longevity
Our battery capacity tester is versatile and user-friendly, supporting a broad spectrum of battery voltages from the cessation of discharge voltages between 2.5V to 3.5V. With discharge currents up to approximately 1A, it is suitable for almost all batteries meeting the voltage range of 2.8V to 4.2V, providing a thorough and reliable battery management system
Designed with convenience in mind, our TypeC Battery Testing Module offers 11 adjustable discharge stop voltages from 2.5V up to 3.5V. Together with a specialized battery charging chip, it ensures optimal charging performance up to approximately 1A, automatically stopping once the charging current dips below 0.1A at a full charge voltage of 4.2V
Ensure the peak performance and health of your batteries with our robust 18650 Lithium Battery 2-Channel Capacity Automatic Charging and Discharging Module. It's not just a tool but a comprehensive solution tailored for enthusiasts who demand precision, reliability, and versatility in their battery maintenance and testing tasks

Rank No. #10

4-Bay 18650 Battery Charger，Test Battery Capacity，Touch Button,Universal Battery Charger for: 3.7V 26650 20700 18650 18350 1.2V NiMH/Cd AA AAA Size Batteries

☆【Universal Battery Charger】4 bay battery charger is fully compatible with 3.7V Rechargeable Batteries：18650,26650,22650,20700,18350,18490,18500,18700,17335,17670,17500,16340 ,14500, 10440 , 14650, 25500,32650, 1.2V NiMH/Cd: AA, AAA，SC, C Size.(It cannot charge all 1.5V batteries, including AA AAA batteries)
☆【Fast Charge, Easy to Use】The charger can change independent charging or different current selection according to the corresponding touch point function, as well as mixed charging of different batteries, which is easy to operate; in the working state, you can tap (1-2, 3-4) touch points to view the corresponding channel current (mA) /Capacity(mAh)/Voltage(V)/Time(h) and other data reference values.
☆【Touch Button 4-Bay Battery Charger】Long press the MODE touch point to switch between these four modes: first tap the 1-2 or 3-4 touch point to select the channel, then long press MODE to change the original mode, tap MODE to select the desired mode, press CURRENT The touch point changes the current size, and it enters the working state without any action for 8 seconds after selection, which is easy to use.
☆With CHARGE, DISCHARGE, TEST and STORAGE four working modes, can work in separate channels at the same time, independently set charging/DISCHARGE capacity detection, normal capacity detection function;In test mode, the normal battery capacity test process consists of three steps (1. Fully charged, 2. Then discharged fully, 3. Fully charged);Charge mode and test mode can work at the same time; charging capacity test / normal capacity test function can be set independently.
☆Touch button adopts the design of touch buttons, and it will send out a "beep" sound feedback when touched. Responsive and easy to operate.

Last update on 2025-05-10 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best 18650 Capacity Tester?

Do you get stressed out thinking about shopping for a great 18650 Capacity Tester? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 18650 Capacity Tester, which is why we have assembled a comprehensive list of the greatest 18650 Capacity Tester available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 18650 Capacity Tester that you consider buying. Your questions might include the following:

Is it worth buying an 18650 Capacity Tester?
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Why is it crucial to invest in any 18650 Capacity Tester, much less the best one?
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We’re convinced that you likely have far more questions than just these regarding 18650 Capacity Tester, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 18650 Capacity Tester, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 18650 Capacity Tester. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 18650 Capacity Tester buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 18650 Capacity Tester currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 18650 Capacity Tester 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 18650 Capacity Tester?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 18650 Capacity Tester.
Customer Ratings: Number ratings grade 18650 Capacity Tester objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 18650 Capacity Tester.
Product Quality: You don’t always get what you pay for with an 18650 Capacity Tester, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 18650 Capacity Tester is should be an indication of how long it will work out for you.

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The Best 18650 Capacity Tester of 2022 – Reviews & Buying Guide

How Do You Buy The Best 18650 Capacity Tester?

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