ITEM

UNIT

SPECIFICATIONS

CONDITIONS

Nominal voltage

V

3.0

Standard discharge

Nominal capacity

mAh

540

Standard discharge

Instantaneous short-circuit current

mA

≥350

Time≤0.5second

Off-load voltage

V

≥3.20

Unit cell

Storage temperature

°C

0-35

Standard weight

g

6.5

Unit cell

Service

output

Initial

h

496

Continuous discharge with load 3 kΩ,till 2.0v end-voltage at 20-25°C

After 12 months storage

h

486

ITEM

CONDITIONS

CHARACTERISTICS

Self-discharge

rate

Stored for 12 months at normal temperature, 

then continuously discharged with 15 kΩ load till 2.0v end-voltage

Less than ≤2%

NO

ITEM

TEST METHODS

STANDARED

1

Dimensions

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

Diameter

24.5(-0.15)mm

Height

5.00(-0.20)mm

2

Off-load

voltage

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

≥3.20V

3

Instantaneous

Short-circuit

current

Time of short-circuit should be less than 0.5

Second and avoid repeated test within half

An hour

≥350mA

4

Appearance

Eyeballing

Bright, clean, no rust, no leakage, 

and no flaw

5

Capacity

Continuously discharge for 8 hour with load

3 kΩ,temperature at 20-25°C,humidity at 65

±20% till 2.0v end-voltage(for fresh battery

only: within 3 months)

≥478h

6

Vibration test

Put battery on the platform of the vibrations

Machine, start the machine and adjust the

Frequency form 10 times per minute to 15

Times per minute. keep it running for an hour

Characteristics keep stability

7

Leakage at

high

temperature

Stored under temperature(45°C)for 30 days

Leakage rate≤0.5%

8

Over

Discharge

Test

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

No leakage allowed