How much of an impact on battery runtime does having location services on cause? I am in a metal enclosed mobile home that GPS signals cannot penetrate but I assume having location services on might still be worthwhile to use the WiFi and cellular parts of it. What about that, should I leave it...

I need to be able to monitor a house at another location which will have heat and electricity, but no Internet. In particular I would need to know if the power should go out this winter. Is there a device which would have its own battery that would connect to Verizon 4G LTE cellular and send...