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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.
Once installed in the AED, it has an estimated 1-year life, longer than both alkaline and carbon-zinc batteries.
Defibtech AEDs operate on batteries only. It is advisable to always have extra batteries available.