Battery Type: Lithium thionyl chloride battery Battery Brand: VCELL/OEM Model: ER14505M Nominal Voltage: 3.6V Nominal Capacity: 1800mAh Discharge Cut-Off Voltage: 2.0V Max constant discharge current: 400mA Max. Pulse discharge current capability: 1000mA Work temperature: -60 -85 Self-discharge rate: 10 years