Defibtech 7-Year Lifeline AED Replacement Battery Pack (DCF-210). This replacement battery pack (DBP-2800) has a standby life (installed in the unit) of 7 years (including daily, weekly, monthly and quarterly self-tests), 300 defibrillation shocks, or 16 hours of continuous operating time. Price per each.
Each battery pack also comes with a new DAC-410 9-volt lithium battery.