The Maxell 389 SR1130W is a silver oxide coin cell battery that suited for watches, heart-rate monitors, digital thermometers, calculators, and small electronic toys. Silver oxide button cells are known for their low self-discharge and stable output voltage, so the Maxell 389 will provide constant power to devices over the course of its service life. The Maxell 389 has the ability to operate in various temperatures ranging from cold to hot making it the ideal battery for devices that are taken everywhere.
