HP Envy 15t-1100se CTO Beats Limited Edition Notebook PC - Manual (Page 63)

NOTE: It is not necessary to turn off the computer before inserting or removing the accessory battery.
1. Turn the computer upside down on a flat surface, with the battery bay toward you.
2. Align the accessory battery with the bottom of the computer, with the battery fuel gauge toward
you.
3. Press the accessory battery down until it is seated (1).
4. Slide the battery release latches (2) to lock the accessory battery into place on the computer.
To remove the accessory battery:
1. Turn the computer upside down on a flat surface.
2. Slide the battery release latches (1) to release the accessory battery.
Using battery power 53