14.8V 4000mAh Li-Polymer Battery Pack, Rechargeable Battery Pack (YJ458095-4S 4000mAh 14.8V)

- Apr 23, 2018-

Basic Info

Product Description

  • Model NO.: YJ458095-4S 4000mAh 14.8V

  • Connection Mode: Series Connection

  • Shape: Square Battery Pack

  • Nominal Voltage: 14.8V

  • Size: 25*81*97mm

  • Export Markets: Global

  • Specification: RoHS

  • HS Code: 85076000

  • Type: Polymer Li-ion Battery

  • Model No.: Yj458095-4s 4000mAh 14.8V

  • Capacity: 4000mAh

  • Discharge Rate: Medium Discharge Rate 6.0A

  • Weight: 350g

  • Trademark: OEM

  • Origin: Shenzhen

Product Description
Lithium ion polymer battery pack
Battery model: YJ458095-4S 4000mAh 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
Size: 25*81*97mm
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 Operation Temperature 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 Storage Humidity Range 60±25%RH.  
15 Weight Approx: 350g Whole product
16 Product Dimension Length: Max. 97mm Initialdimension
Width: Max. 81mm
Thickness: Max. 25mm
17 Package Standard International transportation package, based on UN3480 PI965[RLI] Lithium lon Cells/Batteries ONLY                              


2) Electric features:
No. Item Type value Unit
1 Over charge detection voltage 17.12±0.12 V
2 Over charge detection delay time 80-200ms  
3 Over charge release voltage 16.32±0.12 V
4 Over discharge detection voltage 12.0±0.32 V
5 Over discharge detection delay time 20-60ms V
6 Over discharge release voltage 12.0±1.0 V
7 Over current detection voltage 150±30mv V
8 Over current protection current 3.2±2.0 A
9 Over current detection delay time 10-20ms  
10 Cycle life ≤500 times(≥70% 0.5C)


3) Commercial condition:
1 Payment term TT in advance, PayPal, L/C and so on.
2 Lead time 15-30 days after order confirmed.
3 Samples Offered in 5-15 days.
4 Shipping method Express or customer's demands.