The Lithium Ion 9V battery is inserted into the Battery Pack of the Lifeline™ and Lifeline Auto AEDs to power the AED’s Active Status indicator. It also drives the AED’s self-checks.
This replaceable long-life lithium battery powers the Defibtech Lifeline™ or Lifeline AUTO AED's self-checks and lasts up to 5 times longer than ordinary alkaline 9V batteries (and 10 times longer than carbon-zinc batteries).
Defibtech brand AEDs operate on batteries only. Always have a fully charged spare available.