Dell Inspiron 7415 2-in-1 Service Manual page 17

Steps
1. Peel the tape that secures the battery cable to the system board (applicable only if not peeled earlier).
2. Disconnect the battery cable from the system board (applicable only if not disconnected earlier).
3. Remove the three screws (M2x3) that secure the battery to the palm-rest and keyboard assembly.
4. Lift the battery off the palm-rest and keyboard assembly.
Removing the 4-cell battery
About this task
The following image indicates the location of the battery and provides a visual representation of the removal procedure.
Removing and installing components 17