Ha! It's funny that I am going the other way with the whole electronic thing after a long period of electric minimalism or flat out disuse.
When I was a teen and in college often I would only have a single small flashlight with no backup batteries, and sometimes no light or any electric stuff at all. Campfire light would be all I would need, and if it rained, then break out the light--and only for like 10 min to get ready for bed. Of course it helps to take precautions, like have your shelter sorted before sunset, and lay out stuff you will need at night.
About 4 years ago when I started to get back into backpacking as my main hobby I bought a wind-up LED flashlight. Then a few years ago I discovered UL backpacking and switched to a tiny 30g LED flashlight, which is what I usually take as my only light, though I do pack some extra batteries (only 10g, they are the disk kind). But then around the same time as I discovered UL I also got back into winter backpacking, and here in Sweden in the winter it is dark most of the time, sometimes the sun sets at like 4pm.
So just last month or so I decided for the upcoming winter to get a nice and light headlamp. Then of course other things in life forced my hand with a few other electronic items like cell phone and camera. I often will leave my camera at home, but I write a blog, so sometimes it comes with. The cell phone I never, ever took with me... until I had kids. Now it comes with me always and fully charged to make sure my family is doing well and to talk to my kids if they miss me, wish them goodnight, etc. It's only 65g at least. I could give a rat's behind about iPhones or the rest of those fancy new phones.
But I admire the spirit of the OP, I was there at one point, but life sure does change on you sometimes.
Oh, a tip I just remembered: take a small tea candle with you just in case. There have been several times that made things much easier in shelters, and if anything it sure is cozy :)