Safe Low Impedance 1000 Cycles 3.7V 4.5Ah NCA 21700 Lithium Ion Battery for EV

NO.

Items

Specifications

1

Charge voltage

4.20±0.03V

2

Nominal voltage

3.60V @ 0.2C

3

Nominal capacity

4500mAh @ 1C Discharge to 2.5V

4

Charge current

Standard Charging: 0.5C(2250mA)

Discharging: 1C(4500mA)

5

Standard Charging method

0.5C CC(constant current)charge to 4.2V,

then CV(constant voltage 4.2V)charge 

till charge current decline to 90mA±5mA

6

Charging time

Standard Charge: 3hours(Ref.)

Rapid Charge: 1.5hours(Ref.)

7

Max.charge current

1.2C(45℃≥T≥25℃)

8

Max.discharge current

3.0C(35℃≥T>25℃)

9

Discharge cut-off voltage

2.5±0.05V

10

Operating temperature

Charging: 0℃~45℃

Discharging: -20℃~60℃

11

Long Time Storage Condition

-20℃~ +20℃, 65±25%R.H.

12

Battery Weight

70g±2g

13

Battery Dimension

Height: 21.7±0.2mm (not including tabs)

Diameter: 70.9±0.2mm