HP 15c Collector's Edition save/restore does not work

[Johnh]

I also had battery issues at the time I was updating firmware and getting Voyagersave running. This was after a full year of actual use. On mine only one battery was connecting.

Now that I can keep fully backed up as I add more programs, I'm letting it run and using it daily until it eventually gets to the next battery issue. Maybe it will run out of power, or maybe Voyager save won't connect? All seems good so far, Keyboard issues are gone and it runs well. I'm about 3 months into a new set of fresh high-quality batteries. Since I'm currently fully backed-up, and there's some free time, I think I'll test again to check the Voyagersave operation and see how the voltages are looking.

It's all a lot less stressful than worrying about my Hp35s, which has more power issues and no way to restore.