Cordless Body Massager Lithium Battery

We are offering our customers a wide range of Cordless body massager lithium battery, which are available following Specifications :-
1.General:
Battery with safety circuit and wires
Cell: HPL701838 440mAh 3.7V
PCM: Seiko IC is available
NTC: 10 kOhm or 100 kOhm (available)
Configuration: 1S1P
Weight: approx. 9g
2.Electrical Specification:
Rated Capacity: 420 mAh min, 440 mAh typical
Nominal Voltage: 3.7V
Watt-hour rating: 1.85 Wh
Charging Method: Constant Current + Constant Voltage
Max. Charge Voltage [V]: 4.20 (A 50MV)
Max. Continuous Charge Current: 440 mA
Rec. Charge cut off: by current 8.8mA or timer 2.5h
Max. Continuous Discharge Current: 440 mA
Rec. Discharge cut off: 3.0V
Internal Impedance: tbd
Exp. Cycle Life: 400 cycles i 80% of initial cap. (1C at 20A C)
Cell protection
Overcharge Detection: 4.35A 0.025V
(0.5 to 1.5 sec. delay, resume 4.15A 0.05V or at discharging current)
Overdischarge Detection: 2.30A 0.05V
(0.1 to 0.2 sec. delay, resume 2.90A 0.1V)
Overcurrent Detection: 0.88 A to 1.1A (5 to 30msec. delay at discharge)
3.Ambient Conditions:
Temperature Range
-Charge: 0 to +45A C
-Discharge: -20 to 60A C
-Charge Retention/Storage[%]: 1 year at -20 to +25A C
3 month at -20 to +45A C
Humidity: 65A 20%RH
4.Environmental and Safety:
Please follow Hypercell Handling and Safety Precautions for Li ion and Li polymer
The cell is approved according UL 1642.