While installed in the unit this replacement AED battery has enough power for 8 hours of continual usage (125 shocks) and will last for 5 years, with daily, weekly, monthly and quarterly self-tests to give you the peace of mind of knowing that you will never be caught without power.

Each battery pack comes with a new DAC-410 9-volt lithium battery

(used to power the AED’s active status indicator - expected life of one year once installed)