Sony PEG-TG50 Intellisync Lite Operating Instructions Manual page 6

When you dispose of a CLIÉ handheld, remove the battery for recycling.
How to remove a rechargeable button battery
1
Remove the screw from the side
of the CLIÉ handheld with a
Phillips screwdriver.
3
Remove the jack of the battery
cord from your CLIÉ handheld.
6
2
Remove the battery cover.
4
Pull the ribbon attached to the
battery.