Dell 410 - page 80

4-24 Dell Precision 410 Systems Service Manua l
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To remove the system battery, follow these steps:
Carefully pry the system battery out of its sock et with your fingers or with
a blunt, nonconducting object, such as a plastic screwdriver.
When you replace the system batter y, orient the new battery with the “+”
facing up. Insert the batter y into its socket and snap it into place.
BATTERY socket
battery