The medical grade IntelliSense battery is the power behind the Powerheart® G3 AED. This dependable battery is tested rigorously at Cardiac Science and then tested each day it is installed in your Powerheart® G3 AED for presence and functionality to ensure readiness. Once IntelliSense™ supplies are installed in your Powerheart® G3 AED, years of unmatched performance is delivered. In fact, each IntelliSense AED battery comes with a 4-year performance guarantee. This IntelliSense lithium battery is for use in Powerheart® AED G3 9300E, 9300A, 9390E, and 9390A.9142-101