> don't think any current model of phone actually has a way to turn the GPS transceiver off. Android (or I guess iOS) just controls access to requests for GPS info. So you're probably no saving any power
Really? In Android, the Location Settings are marked 'High Accuracy (GPS, cell tower and WiFi)' and 'Battery Saving (cell tower and WiFi only) '. When I first switch to High Accuracy (GPS) it'll take the phone some seconds to a minute (depending on terrain and availability of cell masts for AGPS) to lock on to enough satellites a clue that the phone hadn't been tracking satellites in Battery Saver mode. The GPS will deplete my battery quickly to the extent that the phone grows hot and my car stereo's USB socket won't keep the battery charged, especially on older phones I've owned such as Xperia P, Xperia Z3C and Nexus 5. These are phones running something close to Stock Android, but even my Samsung has its location setting marked this way. What phone are you using?
Biting the hand that feeds IT
