Toshiba LR44 - A76 Alkaline Button Battery 1.5V Toshiba LR44 1.5V Battery is a 1.5 volt alkaline button cell battery designed for general use. The LR44 1.5V Battery is widely used in watches, calculators and medical devices. A button cell battery is a small, round battery that is 11.6mm (0.457 inch) in diameter and 5.4mm (0.21 inch) thick. Specifications: AG13 / LR44 Alkaline Button Watch Battery 1.5V Replaces 157, 103, SR44, A76, G13, L1154, LR1154, 357, 303, GP76, SR1154