DefiSign AEDs give signals about the battery status. On the left side of the device, you can find 4 lights. Look at the second one from the top. In case it is blinking, it is time to replace the battery.
It is very easy to replace the DefiSign battery. The battery down below is suitable for all DefiSign LIFE AEDs and the Schiller FRED PA1 AED.
BatteryPack DefiSign Pocket Plus / FRED Easyport PlusManufacturer : SchillerBatteryPack DefiSign Pocket Plus / FRED Easyport Plus
This Battery pack can be used for the DefiSing Pocket Plus and the FRED Easyport plus€239.00 €289.19In stock, available immediately
DefiSign Life batteryManufacturer : SchillerBattery for the DefiSign Life AED with a approximately LONG 6 YEAR lifespan!€158.00 €172.22In stock, available immediately