I’ve taken a different approach.
I bought three Skilhunt H03’s for about a hundred bucks when they had a bit of a sale on. They’re so small and light, they’re scarcely bigger than the batteries inside them. I use one headband with an H03 in it, and two spare H03’s in my pocket or pack. The batteries are protected in the lights, I have triple redundancy should a light fail, and I’m guaranteed light all night.