Lenovo IdeaPad U550 User Manual page 22

Chapter 1. Getting to know your computer
Battery latch
spring loaded
Battery pack
Battery latch -
manual
Optical drive
latch
Auxiliary latch of
the optical drive
Hard disk drive/
Memory
compartment
8
The spring-loaded battery latch keeps the battery pack
secured in place.
For details, see "AC adapter and battery" on page 12.
The manual battery latch is used to keep the battery pack
secured in place.
This latch keeps the optical drive secured in place.
Use this latch to remove the optical drive.
Houses the computer's hard disk drive and main memory.