As of December 31, 2018, Philips will not be manufacturing any accessories for the Philips FR2 AEDs, and the units will be considered "end of life" by Philips.
The Philips HeartStart FR2 battery M3863A includes a 3-year warranty and 5-year shelf life. The battery typically lasts 3 years installed keeping your Philips FR3 AED in "ready to use" condition as well as running mission-critical self-tests.
Install by Date
Philips FR2 battery M3863A has a 3-year Stand-By life (life while installed in the AED and in stand-by mode) so it is important to record the date you install the battery in your AED. Your 3-year life begins at the installation date as long as the battery is installed before the "Install Before" date as shown below.