Lenovo IdeaPad U550 - Manual (Page 27)

Chapter 2. Learning the basics
13
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Removing the battery pack
If you are not going to use the computer for an extended period of time, or
if you need to send your computer to Lenovo for service, etc. remove the
battery pack from the computer.
Before removing the battery pack, make sure the computer has been shut
down.
Notes:
•
You are advised to insert the battery pack when using your computer to prevent
small particles from entering the inside of your computer.
• To increase the life of the battery pack, the computer does not start recharging
the battery immediately after it drops from fully charged.
• Charge the battery at a temperature between 50 °F and 80 °F (10 °C-30 °C).
• Full charge or discharge is not required.