Primary Lithium Button Cell Battery with 75mAh Nominal Capacity Primary button batteryLithium cellNominal voltage: 3VCut-off voltage: 2. ... 0VNominal capacity: 75mAhPulse current: 10mA (maximum)Maximum. dimensions: Ø20 x 1.6mmWeight: approximately 1 ... hearing aid, calculators, electronics, games, cameras, and more Button Cell Battery