Cylindrical lithium ion 18650 battery packs 7.4V 2200mAh

Preliminary Specification

1.General:

Battery with safety circuit and wires

Cell: ICR18650 2200mAh 7.4V

PCM: Seiko IC

NTC: 10 kOhm or 100 kOhm (available)

Configuration: 2S1P

Weight: approx. 90g

2.Electrical Specification:

Rated Capacity: 2150 mAh min, 2200 mAh typical

Nominal Voltage: 7.4V

Watt-hour rating: 15 Wh

Charging Method: Constant Current + Constant Voltage

Max. Charge Voltage [V]: 8.40 (+/-50MV)

Max. Continuous Charge Current: 2200 mA

Rec. Charge cut off: by current 44 mA or timer 2.5h

Max. Continuous Discharge Current: 2200 mA

Rec. Discharge cut off: 6.0V

Internal Impedance: tbd

Exp. Cycle Life: 400 cycles more than 80% of initial cap. (1C at 20C)

Cell protection

Overcharge Detection: 8.7+/-0.025V

(0.5 to 1.5 sec. delay, resume 8.3+/-0.05V or at discharging current)

Overdischarge Detection: 4.60+/-0.05V

(0.1 to 0.2 sec. delay, resume 5.80+/-0.1V)

Overcurrent Detection: 4.4 A to 5.5 A (5 to 30msec. delay at discharge)

3.Ambient Conditions:

Temperature Range

-Charge:    0 to +45C

-Discharge: -20 to 60C

-Charge Retention/Storage[%]: 1 year at -20 to +25C

                            3 month at -20 to +45C

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 battery parts are RoHS-Compliant