Hpl504068 1540mah 3.7v Lithium Polymer Battery

Preliminary Specification of HPL504068 1540mAh 3.7V Lithium Polymer Battery:
1.General:
Battery with safety circuit and wires
Cell: HPL504068 1540mAh 3.7V
PCM: Seiko IC is available
NTC: 10 kOhm or 100 kOhm (available)
Configuration: 1S1P
Weight: approx. 32g
2.Electrical Specification:
Rated Capacity: 1500 mAh min, 1540 mAh typical
Nominal Voltage: 3.7V
Watt-hour rating: 6.1 Wh
Charging Method: Constant Current + Constant Voltage
Max. Charge Voltage [V]: 4.20 (+/-50MV)
Max. Continuous Charge Current: 1540 mA
Rec. Charge cut off: by current 30.8mA or timer 2.5h
Max. Continuous Discharge Current: 1540 mA
Rec. Discharge cut off: 3.0V
Internal Impedance: tbd
Exp. Cycle Life: 400 cycles more than 80% of initial cap. (1C at 20 C)
Cell protection
Overcharge Detection: 4.35+/-0.025V
(0.5 to 1.5 sec. delay, resume 4.15+/0.05V or at discharging current)
Overdischarge Detection: 2.30+/0.05V
(0.1 to 0.2 sec. delay, resume 2.90+/0.1V)
Overcurrent Detection: 3.08 A to 3.85A (5 to 30msec. delay at discharge)
3.Ambient Conditions:
Temperature Range
-Charge: 0 to +45 C
-Discharge: -20 to 60 C
-Charge Retention/Storage[%]: 1 year at -20 to +25 C
3 month at -20 to +45 C
Humidity: 65+/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.
This battery meets the requirements of Battery Directives, and the batte