Originally Posted by
njkayaker
You aren't looking hard enough. The link I posted earlier says "22h runtime". That might not include navigation.
Not sure how I missed that. Guess I was expecting it to be a big bragging point, considering how bad GPS battery life used to be. (Had a Lowrance GM100 back in the day that ate 4AAs in about 3 hours, and both a Garmin and a Magellan that would eat two in less than two hours.)
Note that keeping your phone off is something to consider (especially, if you are in a area with no or poor cell reception).
That's the main reason I want the GPS function elsewhere. OTOH, airplane mode battery life is pretty darn good with the screen off, so if I can find an app that will deactivate airplane mode, sync email, check voicemail, and Facebook Messenger, then turn airplane mode back on, at configurable intervals or set times, that might be a good option so I don't forget to power up and check at rest stops.