4s Lipo Battery

4s Lipo Battery Base information Other specification for 4s Lipo Battery Initial Performance Test For Cell Mechanical characteristics and Safety Test witl UN38.3 Standard 1 / Vibration Test : After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the...

Product Details

4s Lipo Battery

Base information

 

item  data remark
1 16000mah standard capacity
2 15500mah Min  capacity
3 3.7v  voltage
4 4.2±0.03V 100% full charge
5 0.5c  charge current
6 0.5c  dishcharge current
7 5 pin molex 51146. connector
8 peak current 2A
9 continue current 1.5A

Other specification for 4s Lipo Battery

 

Number

Item

General data

Remark

1

Internal Impedance

 

≤80mΩ

The measure must uses the new batteries that within one week after shipment and cycles less than 5 times test by internal resistance measured at AC 1KHZ after 50% charge

 

2

Standard charge

 

Constant Current 0.5C5A

Constant Voltage 4.2V

0.01 C5A cut-off

 

Charge time about  4.0h

 

3

Standard discharge

 

Constant current 0.2 C5A

end voltage 3.0V

 

 
4

Fast charge

(

Constant Current 1C5A

Constant Voltage 4.2V

0.01 C5A cut-off

 

Charge time about 2.5h

Initial Performance Test For Cell

tem

Test Method and Condition

Requirements

Open-Circuit

Voltage

 

The open-circuit voltage shall be measured within 24 hours after standard charge.

≥4.08V

Internal impedance

Internal resistance measured at AC 1KHz after 50% charge.

≤80mΩ

Minimal Rated

Capacity

 

The capacity on 0.2C5A discharge till the voltage tapered to 3.0V shall be measured after rested for 30min then finish standard charge.

 

Discharge Capacity

 

≥4000mAh

 

Mechanical characteristics and Safety Test witl UN38.3 Standard

1 / Vibration Test :

After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz an 55Hz, the excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of XYZ axes.

pass standard: No explosion,No fire

 

2 / Drop Test

The cell is to be dropped from a height of 1 meter twice onto concrete ground.

pass standard: No explosion,No fire

 

3 / Crush Test

Fresh,Fully charged

Crush between two flat plates. Applied force is about 13kN(1.72Mpa) for 30min.

pass standard: No explosion,No fire

 

4 / Short Circuit Test (20±2℃ ).

samples require: Fresh,Fully charged

Each test sample battery, in turn, is to be short-

circuited by connecting the (+) and (-) terminals of the battery with a Cu wire having a maximum resistance load of 0.1Ω.Tests are to be conducted at room temperature(20±2℃ ).

pass standard:  No explosion, No fire The Temperature of the surface of the Cells are lower than 150℃

 

5 / Short Circuit(60±2℃ ) test

samples require: Fresh, Fully charged

Each test sample battery, in turn, is to be short-

circuited by connecting the (+) and (-) terminals of the battery with a Cu wire having a maximum resistance load of 0.1Ω.Tests are to be conducted at temperature(60±2℃ ).

pass standard: No explosion, No fire The Temperature of the surface of the Cells are lower than 150℃

 

6 / Impact test

samples require: Fresh,Fully charged

A 56mm diameter bar is inlayed into the bottom of a 10kg weight. And the weight is to be dropped from a height of 1m onto a sample battery and then the bar will be across the center of the sample.

pass standard:No explosion, No fire

 

7 / Forced Discharge test

samples require: Fresh,Fully charged

Discharge at a current of 1 C5A for 2.5h.

pass standard:No explosion, No fire

 

8 / Nail Pricking test

samples require: Fresh,Fully charged

Prick through the sample battery with a nail having a diameter of 3mm and remain 2h.

pass standard:No explosion, No fire

 

Drawing for 4s Lipo Battery For 

Max.08.0

W

 

50.5+0.5 –0.5

H

 

110+0.5 –0.5

UNIT

 

mm

 

     

 

 

 

Product Photos

 

SUNLAND is one of the leading manufacturers and suppliers of 4s lipo battery in China. Under strict quality control system, our quality energy storage products made in our own professional factory must be your best choice.
Inquiry