On this page you can find nearly all AED batteries. Most batteries can be delivered from stock. Please narrow your selection in the left column if you wish to make your choice easier. Most AED batteries can easily be replaced by yourself. After inserting the new battery the unit will require a self-test (check user manual for guidance). The device is now ready for use; the status indicator will also confirm this. Maybe now is also a good opportunity to check the shelf life of the electrodes?