Battery SpecificationsCapacity - 4200 mAhWatt-hour - 37.80 WhVolts - 9V, 4.2ABattery Type - Li-MnO2 Lithium batteryProduct Size - 128.00 x 62.00 x 27.50 mm (5.04 x 2.44 x 1.08 inches)Also compatible for Models M5070A, M5066A, 110300, M5067A, M5068A, 861304. Features and further detailsWe focus on the manufacture of various precision instrument batteries, plese rest assured that each AED replacement battery is strictly tested to ensure 100% normal operation. Caution - Non-rechargeable. Please do not charge. This is a Lithium Manganese dioxide non-rechargeable battery.Shelf life - 5 years. Please install before June 2027. FAQ1. How many times can you use an AED battery?In comparison, a defibrillator within the CU Medical range can last for 3 operating hours or 5 cardiac events before needing a new battery. As cardiac arrests do not always occur frequently, defibrillators can often last years without needing a new battery.2. When should I replace my defibrillator battery?The typical shelf life of pads and batteries is 2 to 5 years, depending on the defibrillator model – please check your user manual, consult the product detail page on our website or check the expiry date on your pad or battery.3. How do I check the battery on my Philips AED?As long as the status indicator is blinking green then the AED has passed its self-test and is ready for use. If the status light is off, the FRx is not chirping, and the blue i-button is not flashing then either the battery is not inserted, the battery is dead, or the AED needs repair.4. Why is my AED beeping after changing battery?Most AEDs run daily self-tests to ensure that, in the event of an emergency, they are ready to save lives. The beeping is just a gentle reminder to make sure your investment in safety is ready to work when you really need it.