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- To ensure that an AED will be rescue-ready in an emergency, its system battery must be replaced periodically. The Philips HeartStart OnSite AED replacement
battery is a high quality, long-life lithium battery that typically lasts 4 years when the AED is in standby mode.
- 4 year standby life (installed)
- 5 year shelf life (not installed)
- Philips 4 year factory warranty