1pcs XH-M240 18650 lithium battery Capacity tester maH mwH digital discharge electronic load battery monitor

Instructions for 18650 Lithium Battery Real Capacity Tester

I. Usage Methods

(I) Regarding 18650 Batteries

   The minimum discharge cut-off voltage of an 18650 battery is generally 2.75V. Under normal circumstances, when the voltage drops to 0.875 times the rated voltage (3.24V), it should be recharged. If use continues, the voltage will drop rapidly, and there is a risk of damage due to over-discharge, which affects the battery life. (It is recommended to set the discharge cut-off voltage to 3.5V.) The charging voltage is generally 4.20V - 4.3V/4.35V.

(II) Calculation of Measurement Time

   Assuming the battery capacity is 2000mAh and the discharge current of this tester is approximately 500mAh, the measurement time ≈ 2000 ÷ 500 = 4 hours.

II. Product Parameters

● Name: 18650 Lithium Battery Real Capacity Tester

● Display Precision: 0.1

● Measurement Precision: 1mAh

● Power Supply Voltage: DC5 - 12V / Powered by 18650 battery

● Standby Current: 5 - 7mA

● Discharge Current: Approximately 500mA

● Load Power: 10W 8Ω

● External Dimensions: 1108025mm

● Installation Dimensions: 72*53

● Mounting Hole Diameter: 3mm

● Product Weight: 62g