The highly affordable, Varta V625U LR09 PX625A 1. 5V Alkaline Battery is a popular choice of battery for use in a wide range of small electronic devices, thanks to its impressive qualities at an attractively low price. It's commonly used to power small electronic devices such as digital clocks, calculators and key fobs and guarantees trouble-free power delivery to all of your devices that are compatible with the size and power rating of the V625 coin cell battery. As an alkaline battery manufactured by an industry leader, Varta's V625U LR09 PX625A 1. 5V alkaline batteries can be expected to remain fully operational over a long period of use, and with their long shelf life and low self-discharge rate, if kept as spares, they can also be expected to remain at full operating potential.