Thanks for replying. I have very poor signal strenght (1 bar) here, and that may be a factor. I've taken great care to turn everything else off.
The reason I'm playing with this is that I'll be travelling by train for 2 weeks in May/June. At one point I'll be on the train for 48 hrs, a 3 hr break, and back on for 12 hrs. I have a travel charger (there are electrical outlets in my sleeping compartmemnt) and a mobile charger, so I think I should be ok. |