The GPS sensor consumes a lot of energy to maintain the signal. We took multiple measures to improve battery life with Golf Pad. The majority of the users can complete a full 18-hole round, some users report they can play two rounds on a full charge. Ultimately, this depends on the model and the age of the phone.
There are several things you can do to improve battery life: disable Wi-Fi, Bluetooth and background sync in system settings. Use power-saving or low battery mode. Tune down the brightness of the screen as long as you can still read it outdoors. Avoid using other phone features such as browsing or email. Check which apps are using the battery under system battery settings. If you still can't make the battery last or it gets too low for the drive home, consider getting a small portable charger. Oftentimes just a quick boost is all it takes to comfortably finish the round.
Finally, consider upgrading to Golf Pad Premium. Since it does not show ads, it spends less energy downloading and displaying ad content.