You can power off your Karoo mid-ride and continue that ride when you turn Karoo 2 back on. See: Ride Restore
Pressing and holding the Bottom-Left button for 2 seconds will bring up the Power Menu. Click the Bottom-Right button or tap the "Red Power Off" Icon to turn off your Karoo 2.
By default 10 minutes of inactivity, Karoo 2 will display a 15-second countdown before shutting down on its own. This should help preserve battery between rides in case you forget to power off the Karoo 2 after a ride. This will not happen when paused in the middle of a ride.
Here are the steps to customize the Auto-sleep timer from Settings:
- On the Home screen, click on the "Apps" button.
- Click on the "Settings" app.
- Scroll down till you see and select "Display".
- Select "Sleep".
- You can choose from a wide range of 15 seconds to 30 minutes.