My real life use is camping. My girlfriend likes a lot of the sites that don't have electrical hookup, but I need a CPAP (ASV, technically) to sleep at night. It's also nice if it's raining not to run an extension cord from the site electrical hookup. I have the Jackery 500, and I can run my machine for about 3 nights with a small margin for error without any charging if I used the DC to DC adapter (steps up from 12 to 24v, I believe). I bought a 100 watt solar panel (Rich Poly 12v) to stretch it, and I have the newer model that has the MPPT so I can get maybe half a battery of charging on a sunny day. We don't go that often or for that long usually so I can typically charge it up before we go camping and finish with maybe 25% of the battery left. It's also nice to know that if we have a power outage for a night, I'll be able to get a good night's sleep.
I know I could have rolled my own setup, but this was simpler and had a broader set of applications than anything I felt comfortable putting together.
I know I could have rolled my own setup, but this was simpler and had a broader set of applications than anything I felt comfortable putting together.