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7.4V 4000mAh 2S Li-ion Battery Pack Nov 03, 2017

Basic Info

Product Description

  • Model NO.:2S 4400mAh 7.4V

  • Connection Mode: Parallel Connection

  • Trademark: OEM

  • Origin: Shenzhen

  • Transport Method: Express or Air

  • Specification: RoHS

  • HS Code: 85076000

7.4V 4000mAh 2S Li-ion battery pack

Cylindrical Lithium ion battery pack
Battery model: 2S 7.4V 4000mAh
Material of Case iron packing
Nominal Capacity: 4000mAh
Nominal Voltage: 7.4 V
Charge method CC/CV (constant current/constant voltage)
Size: 26.4*52.5*65.5mm
Weight: About 167g
Rechargeable battery with no less than 500 times cycle life

7.4V 4000mAh polymer battery pack 2S
1) Specification Sheet:
No. Item Rated Performance Remark
1 Rated Capacity Typical 4000mAh Discharge at 0.2C after standard charge fully.
Minimum 3900mAh
2 Nominal Voltage 7.4V Mean operation voltage during standard discharge.
3 Voltage at end of
Discharge
6.0V Discharge cut-off voltage.
4 Charging Voltage 8.4±0.03V  
5 AC  (1KHz) Impedance New Cell Max.(mW) 100≤mΩ  
6 Standard Charge Constant Current 0.5C
Constant Voltage 8.4V
Cut-off current 0.01C
Charge time: Approx 4.0h.
7 Standard Discharge Constant current 0.2 C
end voltage 6.0V
 
8 Fast Charge Constant Current 1C
Constant Voltage 8.4V
Cut-off current 0.01C
Charge time: Approx 2.5h.
9 Fast Discharge Constant current 1 C
end voltage 6.0V
 
10 Maximum Continuous Charge Current 1.0C  
11 Maximum Continuous Discharge Current 1.5C  
12 OperationTemperature Range Charge: 0~45C 60±25%RH.
Bare Cell.
Discharge: -20~60C
13 Storage Temperature
Range
Less than 1 year: -20~25C  
Less than 3 months: -20~40C  
Less than 1 months: -30~45C  
Less than 12 hour: 45~60C  
14 StorageHumidity Range 60±25%RH.  
15 Weight Approx: 167g Whole product
16 Product Dimension Length: Max.65.5mm Initialdimension
Width: Max. 52.5mm
Thickness: Max.26.4mm
17 Package Standard International transportation package, based on UN3480 PI965[RLI] Lithium lon Cells/Batteries ONLY