PRODUCT SPECIFICATION
CONFIDENTIAL
Description
Date
Rev
Lithium Ion ICR18650 B3 2600mAh
2007-09-14
1
4/8
3. Appearance and Dimension
3.1 Appearance
There shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may
adversely affect the commercial value of the cell.
3.2 Dimension
Diameter :
18.29 ± 0.11 mm
Height :
≤
65.05 mm
4. Performance Specification
4.1 Standard test condition
4.1.1 Standard Charge
Unless otherwise specified, “Standard Charge” shall consist of charging at constant current of 0.5C. The
cell shall then be charged at constant voltage of 4.2V while tapering the charge current. Charging shall
be terminated when the charging current has tapered to 50mA. For test purposes, charging shall be
performed at 23ºC ± 2ºC.
4.1.2 Standard Discharge
“Standard Discharge” shall consist of discharging at a constant current of 0.2C to 3.0V. Discharging is
to be performed at 23 ºC ± 2 ºC unless otherwise noted (such as capacity versus temperature).
4.1.3 Fast Charge / discharge condition
Cells shall be charged at constant current of 0.5C to 4.2V with end current of 50mA. Cells shall be
discharged at constant current of 0.5C to 3.0V. Cells are to rest 10 minutes after charge and 20 minutes
after discharge.
4.2 Electrical Specification
Item
Condition
Specification
4.2.1
Initial AC Impedance
Cell shall be measured at 1kHz after charge per
4.1.1.
≤
70 m
Ω
, with PTC
4.2.2
Initial Capacity
Cells shall be charged per 4.1.1 and discharged
per 4.1.2 within 1h after full charge.
≥
2500 mAh (C
min
)
4.2.3
Cycle Life
Cells shall be charged and discharged per 4.1.3
300 cycles. A cycle is defined as one charge
and one discharge. 301st discharge capacity
shall be measured per 4.1.1 and 4.1.2
≥
80% (of C
min
in 2.1)