Dell Latitude E5520 (Early 2011) - Manual (Page 11)

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Battery
Removing the Battery
1. Follow the procedures in Before Working On Your Computer.
2. Slide the release latches to unlock the battery.
3. Remove the battery from the computer.
Related Links
Installing the Battery
Installing the Battery
1. Slide the battery back into the computer.
The release latches automatically click into the lock position.
2. Follow the procedures in After Working Inside Your Computer.
Related Links
Removing the Battery
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