LiFePO4 Battery 3.2V 1500mAh 18650

Item

Dimension (mm)

Diameter

18.2±0.1

Height(H)

64.8±0.4

No.

Item

Standard

Note

1

Standard Capacity

1500mAh

0.5C,( current valueof 1500mA at 1C)

2

Capacity Range

1450~1550mAh

0.5C

3

Standard Voltage

3.2 V

4

Alternating Internal Resistance

≤60mΩ

with PTC

5

Charge Conditions

Cut-off Voltage

3.65±0.05V

constant-current charge to 3.65V at 0.5C,

constant voltage charge to stop until 0.01C mA

Cut-off Current

0.01C

6

Discharge Cut-off Voltage

2.5V

7

Cycle Characteristic

2000 times

100% DOD, the residual capacity is no less than 80% of rated capacity at 1C rate.

8

Max. Continuous Discharge Current

4.5A

9

Pulse Discharge Current

10A, 5s

10

Working Temperature

Charge:0°C~55°C

Discharge:-20°C~60°C

11

Storage Temperature

-20°C ~ 45°C

12

Battery Weight

42 g (Approx.)

NO.

Item

Test Method

Standard

1 

Overcharge

After normal charge, test the batteries’ initial state and capacity. Charge to 10.0V at 3C, then charge at CV mode to 0.01C. Observe battery’s variation of appearance.

No explosion, No fire.

2

Over Discharge

After normal charge, test the batteries’ initial state. When the batteries are normal, Discharge to 0V at 0.5C. Observe battery’s variation of appearance.

No explosion, No fire.

3

External Short-circuit

After normal charge, test the batteries initial state, Keep the battery into explosion protection cover, short-circuit the positive and negative terminals directly (general resistance shall be less than or equal to 50mΩ). Stop the test when the temperature falls to 10℃ lower than the peak value. Observe the variation of the batteries’ appearance and temperature.

No explosion, No fire.

4

Thermal Abuse  

Test the batteries’ initial state and capacity. Standard charge. Put battery into oven, increase the temperature to 130±2℃ at rate of (5±2℃)/min, and keep it for 30min. Observe the variation of batteries’ appearance.

No explosion, No fire.

5

Drop

After normal charge, test the batteries’ initial state and capacity. Then let it fall from a height of 1m (the lowest height) to a smooth cement floor, twice.

No explosion, No fire.

6

Heavy Impact

A diameter of 15.8 mm steel rod is placed in the middle of the fully charged battery, then the weight of 10Kg hammer from 1.0m height free falls to the battery upper.

No explosion, No fire.

7

Extrusion Test

Place the battery in between the pressing surface of extrusion apparatus, parallel the axes of cylindrical battery to the pressing surface, and gradually increase pressure up to 13KN, keeping the pressure for 1min.

No explosion, No fire.