Datasheet

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Quality Data Inspection
.
Item Measuring Procedure Standard
1.Appearance Visual check Clean, unscratched and
clearly labeled
2.Dimenaions Measured by calipers with precision of
0.02mm
Max φ14.5×50.5mm
3.Weight Weighed by balance with precision of 0.1g Max 19g
4.Open-circuit
voltage
Measure by volt-meter with precision of
0.01V
≥3.65V
5.Operating
voltage
Measure by volt-meter with precision of
0.01V, connecting an impedance of 620Ω
in series, Reaching the target voltage in 5
seconds.
≥3.45V
6.Nominal
discharge
620Ω,20±2, Constant discharge to 2.0V. ≥1800mAh
7.Rapid discharge 220Ω,20±2, Constant discharge to 2.0V.. ≥1650mAh
8. Discharge at
high temperature
Put battery in constant ambient
temperature of 55 ± 2  for 16 hours,
discharge at 620Ω to 2.0V/cell..
≥1850mAh
9.Discharge at
low temperature
Put battery in constant ambient
temperature of -40± 2  for 16 hours,
discharge at 6.8K Ω to 2.0V/cell
≥900mAh
10.Charge Prohibited Prohibited
11.Over-discharge Prohibited Prohibited
12.Self discharge Store the batteries at constant temperature
of 20±5, Measure the nominal capacity
yearly for 10 years.
≤1%