Remove the batteries from the battery pack.

Then get your new AAA batteries ready. For this guide we are using the 'Energizer' brand, but any AAA brand will work.

Place your fully charged AAA batteries into the battery pack.

Repeat the battery pack removal process in reverse to secure the battery pack and noise blocker inside your Lightsaber.

Call your local solid waste district to find out if your community has a collection program for properly disposing of household batteries.