Some batteries that are the same as the G13A are the Vinnic L1154, the NEDA 1166, and any battery that is marked A13 or AG13. This battery is marked A76 by Duracell, Energizer, Rayovac, Phillips, and Eveready. It may also have an initial prefix, like Kodak’s KA76. The LR44 name is used by Maxell, Panasonic, and Sony.
The G13A battery is an alkaline button-cell battery with 1.5 volts that can be used in watches, calculators, and medical devices in general. It is 5.4 millimetres thick and has a diameter of 11.6 millimetres. It cannot be charged.
It can be used instead of a silver oxide battery and costs less. It has a high capacity and can be used for a long time. Alternatives to silver oxide are high-drain and may have the same numbers as their alkaline counterparts or a label that says RW22, RW82, Timex J, or 357.