Dell 14" Mobile Precision 3470 Mobile Workstation (Silver) - Manual (Page 30)

Steps
1. Flip the battery and unroute the battery cable from the routing guides on the battery.
2. Disconnect the battery cable from the connector on the battery.
3. Lift the battery cable away from the battery.
Installing the 4-cell battery cable
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.
30 Removing and installing components