Cardiac Science Powerheart G3 Intellisense Lithium Battery 9146-302This yellow Intellisense Long Life Battery powers the Cardiac Science Powerheart G3. It is an OEM product that comes from Cardiac Science. It includes a four year factory warranty. Each replacement battery undergoes thorough testing at Cardiac Science before being sold. Once installed in your G3 AED, the unit performs a daily self test to ensure the battery is in working order. Internal Intellisense battery circuitry works with Cardiac Sciences