This aviation battery is for use with Philips Defibrillator Model 861388 and is TSO/FAA compliant (TSO-C142a).
Philips HeartStart FR3 aviation battery (989803150171) 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. Using the AED in the course of an emergency rescue or training activity will place a greater drain on the battery and lessen the install life. The Philips FR3 defibrillator battery has the capacity to deliver 300 shocks or 12 hours of patient monitoring.
Philips FR3 aviation battery 989803150171 has a 3-year stand-by life (life while installed in the AED and in stand-by mode). The FR3 battery has an "install by date" printed on it. The install date is generally 5 years out from the date of purchase. This means you have a 4-year shelf life (new and uninstalled). So your Philips FR3 aviation battery's expected expiration date is 3 years from the date you install your battery as long as you install the battery within the "install by date".