Dell C/Dock II Expansion Station - Manual (Page 21)

S y s t e m I n f o r m a t i o n G u i d e 19
• Press the undock request button on the docking control base (see the
figure “Docking Control Base Controls and Indicators”). Wait for the
green docking light to turn off.
Replacing the Battery
Your docking device uses a lithium ion battery. The lithium ion cell battery
is a long-life battery, and it is very possible that you will never need to
replace it. However, should you need to replace it, perform the following
steps.
CAUTION: There is a danger of a new battery exploding if it is
incorrectly installed. Replace the battery only with the same or
equivalent type recommended by the manufacturer. Discard used
batteries according to the manufacturer’s instructions.
1 Undock the computer as described in “Undocking the Computer.”
2 Turn off the power switch on the docking device and disconnect the
AC adapter.
3 Remove the top cover by pressing the two side buttons and rotating
the cover toward the back of the expansion station (see “Removing the
Top Cover”). Once the cover is vertical, disengage the hinge tabs, and
fully remove the cover.