Maxell Battery SR521SW 379

The Silver Oxide Button Cell Battery from Maxell is quite competent to be able to power up electronic devices like wrist watches, pocket watches, medical devices, calculators, cameras and toys. These batteries have a DC output of 1.55V and make use of silver oxide to provide that power. Their small size can also be used in combination to provide power to smaller devices which can't be powered by normal AA or AAA sized batteries. With a shelf life of 5 years, one cell will be enough for years to come. .(1)Compatible with a lot of watches around the world.(2)Used in devices like cameras, calculators, toys, audio books and more.(3)DC output voltage of 1.55 V.(4)Shelf life of 5 years so that you don't have to keep buying the cells frequently..