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Specification for Lithium-Ion Rechargeable Cell
XCell N18650CP-35E
1 Preface
This specification describes the type, dimension, performance, technical characteristics, warnings and cautions of the lithium ion recharge-
able cell. The specification only applies to N 18650CP cell supplied by energy inside.
2 Definition
2.1 Standard charge method
At 25 ± 2°C, the cell is charged to 4.2 V at constant current of 0.5 C (1625 mA), then charged at constant voltage of 4.2 V until the current
tapers to ≤ 0.01C (32 mA) followed by resting for 5 min.
2.2 Standard discharge method
Under 25 ± 2°C, the cell is discharged to 2.5 V at a constant current of 0.2 C (650 mA).
2.3 Nominal capacity
Nominal capacity, signed as capacity and using mAh as unit, is obtained by discharging a cell via standard discharge method after it is stan-
dard charged.
3 Cell model and dimensions
3.1 Description and model
Description: Cylindrical Li-Ion rechargeable cell
3.2 Cell dimensions
Cell physical dimensions listed in Figure 1 (unit: mm), withtube
4 Cell characteristics
Unless otherwise specified, the cell is fresh cell and tested by standard charge and standard discharge.
Nominal capacity
3350mAh by standard charge and discharge
Minimum capacity
3250mAh by standard charge and discharge
Nominal voltage
3.6 V
Charge cut-off voltage
4.20 V
Discharge cut-off voltage
2.50 V
Max charge current
1C (25°C, not for cycle life)
Max discharge current
3C (25°C, not for cycle life)
Storage temperature
1 year: -20~25°C
3 months: -20~45°C
1 month: -20~60°C
Humidity range
0 ~ 60% RH (non-condensing)
Internal resistance
≤ 35 mΩ (AC Impedance, 1000 Hz)
Weight
≤ 49g
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