Renata battery is mercury-free and has a capacity of 60 mAh. Suitable for analog and basic digital watches and handheld devices that have a continuous, low power consumption. These batteries has a reported failure rate of less than 1%. Renata offers a suitable power source for any electronic device requiring an ultra-compact, long lasting, low voltage power source.High capacity retention on storage (low self-discharge)Swiss quality and consistently great performance, battery after batteryWorks for toys, watches, cameras, calculators, car security alarm, keyless car remotes, organizers, computer equipment (memory backup battery)