The Best 18650 Tester of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 18650 Tester of 2022. Check our ranking below.
2,530 Reviews Scanned
SaleRank 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
- 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
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. #3
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. #4
18650 Battery Charger, MIEKLALE 4-Bay 3A Fast Rechargeable Battery Charger with Smart LCD Display,Discharge & Testing Functions for Rechargeable Batteries Li-ion 16340 18650 26650 10440 14500
- New Design LCD Display: This Smart 18650 battery charger can display all Information in One Screen. Included Voltage(V),Current(mA),Time(h),Battery Capacity(mah),temperature(℃).These informations can be clearly displayed during the charging process.
- Faster and efficient charger:This 18650 Battery Charger can quickly charge with 3A current, included a power adapter(12V/5A), It can make our chargers and batteries safer, and perform efficient and fast charging prograss.
- Mult-ifunctional: Our 4 Bay 3A Fast Battery Charger can choose automatic and manual modes. And it has four functions can work in different modes (Charge battery, discharge and test capacity, repair bad battery).
- Battery Capacity Tester: This multifunctional Battery charger can test the capacity of our batteries. In TEST mode, the battery capacity can be tested in three steps: fully charged, fully discharged, and then recharged, Achieve accuracy in detecting capacity.
- Intelligent and safe: This Smart Battery charger has Multi-protection functions. Over Charge and Discharge,Short-Circuited,Over Temp,OV Activation,Intelligent Identification of Bad Battery and Anti-Reverse Protection.(Note :It Can Not Be Charge AA/AAA Li-ion 1.5V batteries and LiFePO4 batteries)
Rank No. #5
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. #6
18650 Battery Charger, MIEKLALE 4-Bay Rechargeable Battery Charger with Smart LCD Display, Discharge & Testing Functions for Rechargeable Batteries Li-ion 26650 14500 17500 RCR123,Ni-MH/Cd AA AAA
- Fast and Efficient : This 18650 battery charger included a power adapter(12V/3A), When choice the 2A charge current, It can make our charger and batteries safer, and perform efficient and fast charging prograss.
- Battery Capacity Tester: This Multifunctional Battery charger can test the capacity of our batteries. In TEST mode, the battery capacity can be tested in three steps: fully charged, fully discharged, and then recharged, Achieve accuracy in detecting capacity.
- Battery Type and Size: Our 4 Bay Fast Bettery Battery charger suitable for most rechargeable Batteries, It can charge batteries from 30mm to 72mm in length. Included Rechargeable Batteries Li-ion 26650 21700 17500 RCR123,Ni-MH/Cd AA AAA.(Note :It Can Not Be Charge AA/AAA Li-ion 1.5V batteries and LiFePO4 batteries)
- Intelligent and safe: This 18650 Battery charger has Multi-protection functions. Over Charge and Discharge,Short-Circuited,Over Temp,OV Activation,Intelligent Identification of Bad Battery and Anti-Reverse Protection.
- Yellow LCD Display: Our Universal battery charger can display all Information in One Screen. Included Voltage(V),Current(mA),Time(h),Battery Capacity(mah) .Black appearance and yellow LCD display meet your multiple aesthetic.
Rank No. #7
KOOBOOK 1Pcs Type-C 18650 Lithium Battery Capacity Tester 8 Channel MAh MWh Digital Battery Power Detector Module Internal Resistance Tester Support Automatic Charge Discharge
- 18650 battery holder using compact battery holder, suitable for flat battery measurement.Voltage and current curve display, real-time voltage and current, DC two-wire method to measure internal resistance, only for the same batch sorting analogy
- 8 independent channels, each unrelated, independent operation, without mutual influence.support 8 channels to set up synchronisation, also can set up each channel parameter individually
- The blue segment at the upper end is the external discharge terminal, and the lower end has the working indicator of the corresponding channel.U-shaped groove at the back is combined with PCB board, and the fan actively dissipates heat to form a heat dissipation channel
- Only support charging-discharging-charging 1 cycle in automatic mode, do not support multiple cycles. support external test,can be discharged through the 2P terminal external, a single channel single time only and can only support the battery holder or external test in one, can not be used at the same time the battery holder and external battery test
- Working voltage: DC5V 10A (standard bare metal, without power supply), overpressure must burn machine.Power supply reverse protection,prohibit reverse power supply
Rank No. #8
SaleRank No. #9
Universal Battery Tester, Dlypow Small Digital Battery Checker with LCD Display for Household Batteries AA AAA C D 9V 18650 CR123A LR44 CR2032 CR2 CRV3 1.5V/3V Button Cell Batteries, Cable Included
- Works for all：Universal battery tester is compatible with 1.2V Ni-MH/CD, 1.5V Alkaline, 3.0V Lithium, 3.7V Li-ion and 9.0V batteries, including AAA AA C SC D N 18650 CR123A LR44 CR2032 CR2450 CR2 CRV3 1.5V/3V Button Cells, ect. Test a wide range of home batteries with just one device
- Easy Operation in 3 Steps：1) Press SELECT button to choose voltage range; 2) Insert battery with correct polarity; 3) LCD displays battery voltage and status. Battery Checker perfect for daily testing and household needs
- Battery Health Analyzer：Digital battery tester shows which batteries to keep or recycle with fun expressions—'Good' (green), 'Weak' (yellow), 'Replace' (red). No more guessing battery life or overcharging
- Compact & Hold Battery Better：With the magnetic buckle, the household battery tester securely holds the battery better. Lightweight and Portable, easy to use and store. Simple and quick! Ready to use
- Rechargeable & Long-Lasting：Small battery checker with USB-C stays standby for 2 - 3 months per full charge , reducing frequent battery swaps. Open-circuit test draws no power from the tested battery, ideal for daily checks and health management
Rank No. #10
Generic Battery Charger Tester Analyzer for Household Rechargeable Batteries AA AAA NiMH NiCd Li-ion 18650 26650
- For Li-ion (Lithium ion) NiMH or NiCd rechargeable batteries.
- Four indepentent channels can be programmed individually or all together.
- Selectable charging rate from 200 to 2000 mA. (1000 mA max 4 channels)
- Five modes of operation for each channel: Charge: Discharge: Discharge Refresh: Charge Test: Quick Test:
- NiMH/NiCd sizes: AAAA, AAA, AA, A, C and SubC. Li-ion sizes: 10440, 14500, 14650, RCR123A (17340), 17500, 17670, 18350, 18500, 18650, 19670 (protected 18650), 25500, 26500, 26650. Maximum length 70mm.
Last update on 2025-11-13 / Affiliate links / Images from Amazon Product Advertising API
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- Specifications: How powerful they are can be measured.
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