Carefully. But here are a few tips.
- You DEFINITELY want to ensure your phone is fully charged before you hop on the float plane.
- Make sure you turn Airplane mode on, so it’s not looking for signal.
- Switch to low power mode (if it’s an iPhone)
- Dim the screen a bit
- You can also buy a small battery pack. I use a small one by GoalZero.
And AGAIN, TURN IT ON AIRPLANE MODE.