Dell OptiPlex 7010 Small Form Factor Desktop Computer - Manual (Page 68)

Steps
1. Push the coin-cell battery-release lever on the coin-cell battery socket to release the coin-cell battery out of the socket.
2. Remove the coin-cell battery.
Installing the coin-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the speaker and provides a visual representation of the installation procedure.
68 Removing and installing Customer Replaceable Units (CRUs)