You can turn Wi Fi off to stop your Kobo eReader from connecting to the internet. This will extend your eReader's battery life. Your Wi Fi connection turns off after 5 minutes of inactivity.
- Go to your Home screen.
- Tap the
Wi Fi icon at the top of the screen. 
- Tap the
circle icon beside Wi Fi: Enabled. If a ‘Cancel Sync?’ message appears, tap Yes to continue. When you see a dialog box that says ‘Wi Fi: Disabled’, your eReader will no longer have access to the internet.
Note: If you don't see the 
Wi Fi icon, tap the
Sync icon at the top of the screen, then tap Sync now. Tap the 
Wi Fi icon at the top of the screen when it appears.
