TrueRC

4000mAh 

PRODUCT  SPECIFICATION              

                                                                                        

1、 Battery Type and Model                                                                  

1.1 Battery Type：Lithium Ion Polymer Battery                                             

1.2 Battery Model：4000                                                                          

1.3 Outer Dimension(mm)：6.0(T)×50(W)×140(L)                                                

                                                                                                 

2、 Performance                                                                              

                                                                                                    

Item

Specification

Remark

Nominal Capacity

4000(mAh)

10C Continuous discharge

15C Max burst

Nominal Voltage

3.7V

 

End Voltage

2.75V

 

Charging Current (Std.)

0.2CA(=800mA)

0～+40℃

Charging Current (Max.)

1.0CA(=4000mA)

0～+40℃

Charging Voltage

4.2±0.03V

 

Discharging Current (Std.)

800mA

-20～+60℃

Discharging Current (Max) (Max.)

40A Continuous

60A Max burst 

-20～+60℃

Internal Resistance

<25mΩ

 

Weight

88g / 3.1oz

 

Temperature

range for

storage

<1 month

-20～+60℃

Percentage of recoverable

Capacity 80%

<3 month

-20～+45℃

<12month

-20～+20℃

 

 

3、 Electrical Characteristics Test

Item

Test   Method

Criterion

3.1 0.2C Discharging Capacity

Within 1 hour after fully charged, discharge at 0.2CmA continuously down to end voltage 2.75V. Recording discharging time.

≥300min

3.2 1.0C Discharging Capacity

Within 1 hour after fully charged, discharge at 1.0CmA continuously down to end voltage 2.75V. Recording discharging time.

≥51min

3.3  Cycle Life

Charge at 1.0CmA continuously down to voltage 4.2V, Then charge at voltage continuously down to end current 20mA,10minutes later, Discharge at 1.0CmA continuously down to voltage 2.75V.After 500 cycles, recording discharging time.

≥36min


                                                                                                                                                                                        

3.4 High Temperature

After fully charged, stored for 4 hours at 60℃, Discharge at 0.2CmA continuously down to end voltage 2.75V. Recording discharging time.

≥270min。

3.5 Low Temperature

After fully charged, stored for 4 hours at -10℃, Discharge at 0.2CmA continuously down to end voltage 2.75V. Recording discharging time.

≥240min。

3.6 Storage

Characteristics

After fully charged, stored for 30 days at 20±5℃, Recording discharging time according to 3.1.

≥240min。

 

 

4、 Safety Performance Test

 

Item

Test  Method

Criterion

4.1  Over- charge Test

Fully discharged battery, charge at 0.2CmA for 12.5 hours, at 20±5℃.

No rupture, fire or smoke

4.2 Exterior short- circuit Test

After standard charge, the battery is to be short-circuited by connecting the positive and negative terminals of the battery with copper wire having a maximum resistance load of 50mΩ, Keeping 6 hours.

 No rupture, fire or smoke

4.3   Drop-Test

Drop the battery in the shipment condition from 10m height onto 5cm or thicker concrete with p-tile on it 1 time at 20±5℃.

 No rupture, fire or smoke

 

 

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2100 mAh specs