Model GEB014461 Battery type Polymer li-ion battery Nominal Capacity 180mAh Nominal Voltage 3.7V Charging Cut-off Voltage 4.20V Discharge Cut-off Voltage 3.0V Impedance 110mO Dimension 1*44*61mm (T*WL) Weight 4.0g Operating Temperature Charge 0~45? Discharge –20~60? Storage Temperature -20~45? for 1Month -20~35? for 6Months We can offer the batteries, with the thickness 2.0-1.0mm. Applications for Ultrathin Polymer-Li Battery: (1) Smart banking cards and credit cards; (2) Medical and health devices; (3) Active RFID devices for luggage storage and transportation under special safety and security regulations; (4) Military, CIA and FBI special uses.