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August 24, 2026
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🛑 The Quick Answer:
Defibtech Lifeline batteries are not interchangeable between models. The standard Defibtech Lifeline (yellow, no screen) uses either a 5-year (DCF-200) or 7-year (DCF-210) yellow battery pack, plus a separate 9V lithium battery for daily self-tests. The Defibtech Lifeline VIEW (with the color video screen) uses a smaller, black 4-year battery pack (DCF-2003) and does NOT require a separate 9V battery.
Defibtech AED Battery Compatibility Chart
Using the wrong battery will result in a failed self-test and a beeping AED. Use this chart to identify the correct power source for your specific machine:
| AED Model | Screen Type | Battery Part # | Lifespan |
|---|---|---|---|
| Standard Lifeline / AUTO | NO Screen | DCF-200 (or DCF-210) | 5 Years (or 7 Years) |
| Lifeline VIEW / ECG / PRO | Color Video Screen | DCF-2003 | 4 Years |
Finding the Right Battery for Your Defibtech AED
1. Standard Defibtech Lifeline Batteries (Yellow AED, No Screen)
If your AED is bright yellow with a simple two-button interface, you have the standard DDU-100 series. The battery pack slides into the back of the unit. You have two options for this machine, both of which require a secondary 9V lithium battery to run the internal self-tests without draining the main power cell.
- DCF-200 (5-Year Battery): The standard replacement pack. Good for 5 years of standby life or 125 shocks.
- DCF-210 (7-Year Battery): The high-capacity version. Good for 7 years of standby life or 300 shocks.
➡️ Buy Standard Lifeline 5-Year Battery (DCF-200) Here »
*Note: Ensure you also replace the 9V lithium battery (DAC-410) located inside the main battery pack every year.
2. Defibtech Lifeline VIEW Battery (With Video Screen)
If your AED features a full-color interactive screen that plays video instructions, you have the DDU-2000 series. This model uses a highly specialized, slimmer black battery pack to accommodate the screen technology. It is a 4-year battery and does not use a separate 9V battery for self-tests.
➡️ Buy Lifeline VIEW 4-Year Battery (DCF-2003) Here »
Frequently Asked Questions (FAQ)
Q: Why does my standard Defibtech Lifeline use a 9-volt battery?
A: The standard Lifeline uses a 9V lithium battery (inserted into a slot on the main battery pack) specifically to run the AED’s daily, weekly, and monthly self-tests and power the flashing green status light. This preserves the main battery (DCF-200) so it has 100% of its power available for a cardiac emergency.
Q: Can I use the 7-year DCF-210 battery in my standard Lifeline instead of the 5-year DCF-200?
A: Yes. Both the DCF-200 (5-year) and DCF-210 (7-year) batteries are the exact same physical size and fit interchangeably into the standard Defibtech Lifeline AED. The 7-year simply contains more internal cells for a longer standby life.
Q: Where do I find the expiration date on a Defibtech battery?
A: The expiration date is printed directly on the manufacturer’s label on the back of the battery pack (often indicated by an hourglass symbol). You must replace the main battery pack on or before this exact date, regardless of when you first installed it. (Note: The small 9V lithium battery inserted into standard Lifeline packs has its own separate expiration date and is typically replaced once a year).
