To unload the PPM, depress the PPM release button and remove the PPM from the handle of the CEW.
Inspect the battery contacts. Ensure that they appear in working order and are free from dirt or other residue that may interrupt the battery connection to the CEW.
Install the new PPM and ensure that it is fully inserted into the X2 CEW. Apply sufcient force to ensure the PPM is fully seated. When the PPM battery pack seats properly, the PPM release button should pop out from the recessed position with an audible click.