I have been using modRana on two hiking trips past weekend (using tracklog), and while it operated very well the first day, it let me down a bit on the second day. For some reason, the battery usage was almost double, and I could see it drain the battery in no time. A completely full battery went dead in less than 3 hours, where the previous day still had about 40% left. But on the previous day I also used routing with voice navigation, which I didn't on day 2.
What I did do on day 2 before leaving was loading the tracklog of day 1 on the map as a reference. Could this have caused more drain?

PS: this is with a very recent version, if somebody tells me where I can see the version number I will mention it here too.

EDIT: upgrading it showed the installed version is 0.19-1, now installing 0.19-3 from extras-Devel