The LIFEPAK 1000 battery 11141-000100 is a long-life LiMnO2 non-rechargeable battery that comes with a discharger and instructions on how to properly dispose of the Battery Pak.  The LIFEPAK 1000 AED Battery has an indicator that states the remaining state of charge.

A non-rechargeable lithium manganese dioxide (Li/MnO2) battery or a rechargeable Lithium-ion (Li-ion) battery provides power to the defibrillator. Both batteries have indicators that show the approximate state of charge. The non-rechargeable battery is best suited for low-use applications. The rechargeable battery is best suited for high-use defibrillator applications, such as fire departments and ambulance services. It requires periodic recharging by an external battery charger. To save battery life if the defibrillator is accidentally turned on or left on, the defibrillator automatically turns off if it is not connected to a patient and no buttons are pressed for 5 minutes.

The LIFEPAK 1000 defibrillator can be powered by either of two types of batteries:
• A non-rechargeable Lithium manganese dioxide battery
• A rechargeable Lithium-ion battery

Physio-Control batteries designed for use with the LIFEPAK 1000 defibrillator. Do not use any other batteries. 

Physio-Control AEDs operate on batteries only. Always have a fully charged spare battery.