[mkgmap-dev] battery low because of DEM?

Hi all, okay, it was quite cold when this happened, but I think my Oregon emptied the batteries (NI-MH accu) within less than 2.5 hours when I used a gmapsupp with DEM. In the summer they easily allow > 6 hours, maybe > 10. It happened two or three times so I tried again with an older gmapsupp without DEM and saw no more problems. I think my device was configured to display DEM "if available". I am not 100% sure that the pack was 100% fully loaded, maybe I forgot to switch off the device after experimenting with it. Did anybody else see similar results? Gerd