Toshiba PORTEGE M400 - Manual (Page 145)

User’s Manual 6-15
Power and Power-Up Modes
6. Slide the battery release latch to free the battery pack for removal, then
slide out the battery pack.
Releasing the battery pack (2)
To install a battery pack, follow the steps below.
7. Insert the battery pack.
8. Make sure that the battery pack is securely in place and the battery
safety lock is in the lock position ( ).
Securing the battery pack
9. Return your computer to the upright position.
Battery
release latch
Battery pack
Do not touch the battery release latch while holding the computer. Or you
may get injured by the dropped battery pack by unintentional release of the
battery release latch.
Battery pack
Battery lock