Product Feature 1: Specially used to measure 18650 battery capacity 2: The integration of charging and discharging eliminates the tedious operation of disassembling and assembling the battery to replace the charging and discharging of the device 3: The size of the discharge current can be switched and it is convenient to use 4: Small size, easy to carry 5: stable performance This product is a 18650 battery capacity tester, which is specially used to measure the capacity of 18650 batteries. The 1.77-inch TFT display can simultaneously display information such as battery internal resistance, capacity, voltage, current, power, etc.; The tedious operation of charging and discharging equipment; preset three modes of automatic, charging and discharging, after selecting the corresponding mode, start the equipment, and the program will run automatically; the size of the discharge current can be switched for convenience. technical parameter ①Install the power supply 18650 battery and the 18650 battery to be tested; ②Use the Type-C data cable to connect the Type-C power supply port to the 5V power supply. The external power supply is used to charge the battery in the CHG state. If you only need to discharge the DSG, you can leave it unconnected; ③Select the mode, the default is AUTO automatic mode; ④Click the Start button to start the program; ⑤Wait for the process to end and the status indication to stop. About power-off storage: This product has no power-off storage function. Shutting down, restarting, and switching the working mode can cause the accumulated data to be cleared (as shown below). 01 It can be used well The working mode corresponds to the state change Product name: 18650 battery capacity internal resistance tester charging and discharging integrated version Working voltage: DC5V Detection voltage: ≤DC5V Capacity measurement range: 0~99999mAh Energy measurement range: 0~99999mWh Battery internal resistance measurement: support, measurement error is about 10% Display real-time voltage: support Display real-time current: support Display real-time power: support Log run time: support Working mode indication: support Current Status Indication: Supported Simultaneous discharge: not supported (simultaneous discharge of 18650 battery Test① and external power supply Test② is not supported) Discharge load: 10W 8ΩJ cement resistance × 2 Discharge current selection: ≈0.5A or ≈1A Charging interface: Type-C External discharge interface: Type-C Preset discharge stop voltage: 3V (not adjustable) Preset full stop voltage: 4.2V (not adjustable) Data storage: The measurement data is not saved, and the accumulated data is automatically cleared when the power is turned off or when the working mode is switched. Product size: 108×85×24mm Product weight: 80g (net weight) Charge and discharge time reference: AUTO (automatic mode): The battery (discharged in advance) is charged ~ the default current is about 1A to discharge 1704mAh ~ it is fully charged again to trigger the program to stop, which takes 437 minutes and 23 seconds. DSG (discharge mode): When the battery is fully charged, it uses a current of about 1A to discharge 1681mAh, which takes 118 minutes and 55 seconds. CHG (Charging Mode): The capacity and energy are not measured during charging, only the time is recorded, which takes 164 minutes and 51 seconds Package list 1*18650 battery capacity internal resistance detector automatic charging and discharging module On Feb 5, 2025 at 20:15:40 PST, seller added the following information: