I had a flip-phone until about a year and half when I broke down and purchased one with a (at the time) ginormous battery (3300 mAh) that's supposed to last at least 17 hours of constant yakking or about 3 to 4 days of mixed use although I doubt I would achieve this amount of longevity in areas where cell phone coverage was weak. I have an older Garmin eTrex Legend series GPS which I wouldn't leave at home if I was on a overnight trek just because of its longevity and the ease of replacing the battery. My biggest gripe regarding these older GPS units concerns the exchange of data from the GPS into another program, such as Google maps. Perhaps this inability is caused more by my lack of technical prowess than by the GPS and/or available software.
BTW, Adam, How were you able to create the trip map and elevation profile from the last day of your Pemigewasett loop. I'm quite impressed by that.
Every landscape which is dreary enough has a certain beauty to my eyes, and in this instance
its permanent qualities were enhanced by the weather. H.D. Thoreau