The Defibtech Lifeline AED 7-Year Battery Pack (DBP-2800 / DCF-210) is the official OEM replacement for the Defibtech Lifeline AED DCF-100 series. With a 7-year standby life, capacity for up to 300 shocks or 16 hours of continuous operation, and FAA/FDA compliance, this high-capacity battery ensures your AED is always ready. Includes a 9V lithium battery for self-testing and a plug-and-play design for easy installation.