Long-life LIFEPAK non-rechargeable Lithium Battery for the Physio-Control 1000 AED Defibrillator: 5 years standby-life.Specification:Suitable for model: Physio Control Lifepak 1000Type of product: BatteryAdult or Paediatric: N/AItem number: 11141-000100Manufacturer: Physio-ControlLife: 5 years.