No

ITEM

TEST METHODS

STANDARED

1

Dimensions

Using vernier caliper (accuracy≥0.02) while avoiding short-circuit

Diameter

9.5(-0.20) mm

Height

2.7(-0.20) mm

2

Off-load voltage

Using multimeter (accuracy≥0.25%) internal resistance≥1MΩ

≥3.25v

3

Instantaneous short-circuit current

Time of short-circuit should be less than 0.5 second and avoid repeated test within half an hour

≥50 mA

4

Appearance

Eyeballing

Bright, clean, no rust, no leakage, And no flaw

5

Capacity

Continuously discharge for 8 hours with load 15kΩ, temperature at 20~25°C, humidity at 65±20% till 2.0v end-voltage (for fresh battery only: within 3 months )

≥150h

6

Leakage at high temperature

Stored under temperature (45°C) for 30 days

Leakage rate≤0.6%

7

Over discharge

Test

After 2.0v end-voltage, continuously discharged for 5 hours

No leakage allowed