Help gps always working...

[fsfs7]

hi there,

few days ago i disable my gps option in order to save batt for a few days.
when i enable it again. it didnt stop working all the time, i could see the icon of the sattelite working . so by battery reached from 100 to 4 in 5 hours. even when i was trying to navigate it didnt find any satelites.

please advice