Philips HeartStart HS1/FRx AED Defibrillator BatteryThe HeartStart FRx Defibrillator comes equipped with a disposable, lithium manganese dioxide, long-life battery that will typically last - in standby mode - for four years in the defibrillator.It's vital to always keep a spare battery with your defibrillator. If you use your defibrillator frequently or for training, it is advisable to stock further spare batteries.This battery is also compatible with HeartStart OnSite/HS1 Defibrillators.Key Features: 4 hours continuous operating time or 200 defibrillation shocks (new) Long 5-year shelf life allowing spare to be always on hand Installed standby life of up to 4 years in standby mode Disposable design, no need for recharging Suitable for Philips HS1 and FRx Devices Technical Specifications: Weight: 0.7kg Shelf life: battery is labelled with install-by date 5 years from the date of manufacture Standby life: 4 years typical, when battery is installed by the install-by date Type: 9 Volt DC, 4.2 Ah, composed of disposable long-life lithium manganese dioxide primary cells Capacity: Minimum 200 shocks or 4 hours of operating time (EN 60601-2-4:2003) You may also be interested in: The full range of ​ and accessories. Our full range of  from all the manufacturers we stock. Our handy  for extra guidance. If you need further help, you can also call our customer support team, who will be more than happy to discuss your requirements.