Avaya 3600 Series - Manual (Page 28)

Avaya Inc. Desktop Charger, Dual Charger, and Quad Charger User Guide
To replace the Battery Pack into the 3626 WT, slide the Battery
Pack straight into the cavity until it snaps into place. You should
not have to force it against the WT.
To place the Battery Pack into the 3620 WT, slide the lip of the
Battery Pack into the bottom of the cavity. Push the top of the
Battery Pack until it snaps into place. You should not have to
force it against the WT.
21-300632, Issue 1, July 2005 Page 28