i have the same porblem;
at the moment,
the atteched gps 12500 and also the gps 19100
comsume about 40mA constantly.
what is alot , compared to the 4-6mA of GPS-less system.
hopefully there will be some firmware update, that enables to temporarily set the gps to idle to safe the mA… or even to turn off the 3,3V going into the gps…