The Physio-Control LIFEPAK 1000 Non-Rechargeable LiMnO2 Battery Replacement Kit includes a discharger and instructions on the safe disposal of Battery PAK. It is designed for use with the Physio-Control LifePAK 1000. After the battery is stored for 5 years at 20° to 30°C, the device will provide 48 months of standby life. A new battery provides device power for 5 years.