3V CR927 button cell battery

ITEM

UNIT

SPECIFICATIONS

CONDITIONS

Nominal voltage

V

3.0

Standard discharge

Nominal capacity

mAh

30

Standard discharge

Instantaneous short-circuit current

mA

≥60

Time≤0.5second

Off-load voltage

V

≥3.20

Unit cell

Storage temperature

°C

0-35

Standard weight

g

0.6

Unit cell

Service

output

Initial

h

130

Continuous discharge with load 15 kΩ,

till 2.0v end-voltage at 20-25°C

After 12 months storage

h

129

ITEM

CONDITIONS

CHARACTERISTICS

Self-discharge

rate

Stored for 12 months at normal temperature, 

then continuously discharged with 68 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

9.50(-0.15)

mm

Height

2.70(-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

≥60mA

   4

Appearance

Eyeballing

Bright ,clean, no rust, 

no leakage, And no flaw

   5

Capacity

Continuously discharge for 8 hour with load

15K,temperature at 20-25°C,humidity at 65

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

only: within 3 months)

≥130h

   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≤05%

8

Over

Discharge

Test

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

No leakage allowed