AED Battery Life: How Long Do AED Batteries Last?
Expert guidance from firefighter/paramedics
Learn more about our complete AED selection or read our AED buying guide.Understanding AED battery lifespan helps you budget and maintain your life-saving equipment properly.
Average AED Battery Life
- Non-rechargeable lithium batteries: 4-7 years standby
- Rechargeable lithium-ion: 2-4 years or 100-200 charges
- Combined battery/pad packs: 4 years (HeartSine)
Battery Life by Brand
- ZOLL AED Plus: 5 years / 300 shocks
- ZOLL AED 3: 5 years / 200 shocks
- Cardiac Science G5: 4 years / 280 shocks
- Philips FRx: 4 years / 200 shocks
- HeartSine (Pad-Pak): 4 years combined
What Affects Battery Life?
- Temperature extremes shorten lifespan
- Daily self-tests consume power
- Age of battery (even unused)
- Number of rescue uses
When to Replace
Replace immediately if:
- Status indicator shows low battery
- Battery expiration date has passed
- AED was used in a rescue
- AED fails self-test