Cardiac Science Powerheart G5 AED battery has a 4-year stand-by life (life while installed in the AED and in stand-by mode). The G5 AED battery has a "manufactured on date" printed on it and a 5 year shelf life (new and uninstalled) from the manufactured on date. The expected expiration date is 4 years from the date you install your battery as long as you install the battery within 5 years of the manufacture date.

Cardiac Science AED Batteries are for use with the Powerheart G5 AED. Powerheart AED batteries should only be purchased from Authorized Cardiac Science Dealers.