Philips FRx/OnSite/HS1 AED Replacement 4-Year Battery

This Philips M5070A 4-year battery is a perfect companion for HeartStart OnSite and HeartStart FRx AEDs. If your AED battery is reaching the end of its life, it is a good idea to order a spare to have on hand so that you are never left without a working AED in your facility. This lithium battery has a 4-year life and a 4-year warranty.