Cylindrical Battery
18650 -1S2P Cylindrical Battery Pack
time:2019-11-04 20:25:48
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Product Features:

1. No memory effect;

2. Lead free, no harm;

3. High energy density, low internal resistance;

4. Excellent safety performance, no explosion, no fire;

5. Can be flexibly made into battery packs with different voltages, capacities, and size;

6. Long cycle life, after 500cycles continuously discharging, 70% of nominal capacity remaining;

7. Wide application range: notebook, interphone, portable DVD, instrument and meter, stereo system, electric torch, video camera, etc.

Model:

18650 -1S2P Cylindrical Battery Pack

Product  Description

No.

Items

Specifications

Remark

1

Voltage

3.7V

LIR18650 4400mah 3.7V Rechargeable  Li-ion Battery

2

 

Capacity

 

Nominal Capacity: 4400mAh

0.2C Standard discharge

Minimum Capacity: 4400mAh

3

Charge Voltage

4.2V±0.03V

By standard charge method

4

Discharge Cut-off Voltage 

3.0V

 

5

Standard charging method

0.2C constant current,4.2V constant voltage charge to 4.2V,continue charging till current decline to 0.01C

 

6

Charge current

0.2C

Standard charge, charge time:6.5h(Ref)

 

 

0.3C

Rapid Charge, charge time:5.5h(Ref)

7

Standard discharging method

0.2C constant current discharge to 3.0V,

 

8

Cell Internal Impedance

160mΩ

Internal resistance measured at AC 1KHZ after 50% charge

9

Maximum charge current

0.3C

For continuous charging mod

10

Maximum discharge current

1C

For continuous discharge mod

11

Operation Temperature and relative humidity Range

Charge: 0~60 60±25%R.H.

 

Charge at a very low temperature such as blew 0,will be get a lower capacity and reduce cycle life of the battery

 

 

Discharge: -10~80 60±25%R.H.

12

Storage temperature for a long time

-20~25
60±25%R.H.

Do not storage exceed half year. Must charge once when storage for half year. Must charge the battery which with protect circuit when storage for three mouths.

13

Allow swellingThickness

10% of Initial Thickness

 

14

Rated Capacity at 0.2C(Min.)

After standard charge, the capacity shall be measured on 0.2C discharge till the voltage discharge to 3.0V,

≥4400mAh100%

 15

Rated Capacity at0.5C(Min.)

After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 3.0V,

Retention capacity

98%

 16

Rated Capacity at 1C(Min.)

Charging and discharging battery as blew conditions

0.2C standard charge to 4.2V end-off

0.2C standard discharge to 3.0V cut-off

Continuous charge and discharge for 500 cycles, the capacity will be measure after the 500th cycle
 

 70% of initial capacity

17

Size

19*38*65mm

18

Net Weight

90g/pc