Tempest always-on-powersave option

With many people reporting having trouble charging the tempest during winter in the northern regions, is it perhaps an idea to have an option to disable the rapid wind measurements all together and just as with the Sky unit save power by at most sampling wind once every 15 seconds? That will save more power then when running in mode 0 (sample every 3 seconds) or in mode 1 (sampling every 6 seconds), but samples 4 times more often then mode 2. This way the unit just lasts way longer before it needs to switch to mode 2 or 3.