Product Parameters:
Product name: 18650 lithium battery true capacity tester
Product model: XH-M240
Display accuracy: 0.1
Measurement accuracy: 1mAH
Power supply voltage: DC5-12V/18650 battery power supply
Standby current: 5-7mA
Discharge current: about 500mA
Load power: 10W8Ω
Instructions:
About 18650 battery
The minimum discharge stop voltage of the 18650 battery is generally: 2.75V. Generally, when the voltage drops to 0.875 times the rated voltage (3.24V), it should be charged, and then continue to use, the voltage will drop rapidly, and overdischarge may occur. , Affect life. (It is recommended to set the end-of-discharge voltage to 3.5V)
The charging voltage is generally: 4.20V-4.3V/4.35V.
Measurement time calculation
Assuming the battery capacity is 2000mAH, the discharge current of this detector is about 500mAH (2000/500=4), and the measurement time is about 4 hours.
For Example:
1. First supply power to the detector, 18650 battery or external DC5V-12V power supply and battery to be tested, turn on the power switch, the screen displays 4.1U, indicating that the remaining voltage of the battery to be tested is 4.1V.
2. Set the end voltage:
Press the + or-button to display the termination voltage, and then press the +- button to set it to 3.5V, and it will automatically save and exit without operation. (The default value is 3V)
3. Press the start button to start checking the capacity. Because it comes with a discharge load, there is no need for an external discharge device (discharge current is about 500mA)
4. Press the display switch button once to display in mAH (milliampere hour)
