14.8V 4000mAh Li-Polymer Battery Pack 855571-4S

- May 17, 2018-

Product Description

  • Model NO.: YJ855571-4S 4000mAh

  • Connection Mode: Series Connection

  • Shape: Square Battery Pack

  • Nominal Voltage: 14.8V

  • Size: 43*57*73mm

  • Export Markets: Global

  • Specification: RoHS

  • HS Code: 85076000

  • Type: Polymer Li-ion Battery, Li-Polymer Battery Pack

  • Model No.: Yj855571-4s 4000mAh

  • Capacity: 4000mAh

  • Discharge Rate: Medium Discharge Rate 6.0A

  • Weight: 350g

  • Trademark: OEM

  • Origin: Shenzhen

Lithium ion polymer battery pack
Battery model: 4S 14.8V
Material of Case Soft Al-film packing foil
Nominal Capacity 4000mAh
Nominal Voltage: 14.8 V
Max Charge Current: 1.0C
Max Discharge Current: 1.5C
Charge method CC/CV (constant current/constant voltage)
Size: 43*57*73mm
Weight: About 350g
Rechargeable battery with no less than 500 times cycle life

14.8V 4000mAh li-polymer battery pack
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 14.8V Mean operation voltage during standard discharge.
3 Voltage at end of
12.0V Discharge cut-off voltage.
4 Charging Voltage 16.8±0.03V  
5 AC  (1KHz) Impedance New Cell Max.(mW) ≤100mΩ  
6 Standard Charge Constant Current 0.5C
Constant Voltage 16.8V
Cut-off current 0.01C
Charge time: Approx 4.0h.
7 Standard Discharge Constant current 0.2 C
end voltage 12.0V
8 Fast Charge Constant Current 1C
Constant Voltage 16.8V
Cut-off current 0.01C
Charge time: Approx 2.5h.
9 Fast Discharge Constant current 1 C
end voltage 12.0V
10 Maximum Continuous Charge Current 1.0C 4.0A
11 Maximum Continuous Discharge Current 1.5C 6.0A
12 OperationTemperature Range Charge: 0~45C 60±25%RH.
Bare Cell.
Discharge: -20~60C
13 Storage Temperature
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: 350g Whole product
16 Product Dimension Length: Max. 73mm Initialdimension
Width: Max. 57mm
Thickness: Max. 43mm
17 Package Standard International transportation package, based on UN3480 PI965[RLI] Lithium lon Cells/Batteries ONLY