Philips replacement Lithium-Ion 4-Year Battery for the Heartstart FRx AED and OnSite AED models. 200+ shock capacity, just like your original battery pack for your FRx or OnSite AED. Philips Part Number M5070A
Replacement brought to you by AED Battery Exchange, this battery works with the Philps FRx and Philips OnSite AEDs.