Step 1: Remove the CS50 ear piece or headband by pulling away from the speaker.
Step 2: With your thumb and finger, squeeze the plastic together where there are grooves on both sides.
*** IMPORTANT *** You need to apply significant pressure to both sides so you don’t break the small tabs under the cover. See step 4 picture to understand the location of the tabs
Step 3: Insert a paper clip or small screw driver under the battery cover and gently lift as you continue to squeeze the cover until the back lifts free.
Step 4: There are two more tabs holding the front of the cover in place. Pull the cover back, towards the speaker, to remove without breaking tabs and lift away from the headset.
Step 5: With the battery exposed, lift the front of the battery and pull forward, towards the microphone of the headset.
Step 6: With the battery removed, pull the two white connectors apart by grasping the plastic and not by pulling the wires.
And Voila! Your battery is out and your headset is ready for a new one!