HTC EVO 3D User Manual page 31

Installing the Battery
1.
With the device turned off, insert a coin or other flat
object into the slot at the bottom of the battery
compartment cover and lift up gently to remove.
2. Insert the contact end of the battery first, and then
gently push the battery into place.
3.
Replace the battery compartment cover and press
until it snaps into place, making sure all the locking
tabs are seated and there are no gaps around the
cover.
Removing the Battery
1.
Make sure the power is off so that you don't lose
any stored numbers or messages.
2.
Remove the battery compartment cover.
(See step 1 of "Installing the Battery.")
3. Lift the battery out at the notch at the bottom of the
battery compartment.
WARNING:
Do not handle a damaged or leaking Li-Ion
battery as you can be burned.
2A. Device Basics 19