I think also to be really honest about it here I would likely bring a few HDS lights if this were me but I also already own them and this would be way over the price limit wanted here by the O.P. too!
Otherwise though it just seems that there is a lot more that could go wrong relying on 18650 cells that require charging in an environment that I have zero knowledge of ahead of the trip.
I have not been all over the world myself but am told that one can find AA batteries in every corner of the planet for the most part.
These are the batteries that I would plan to rely on rather than take a chance with not having light as needed. The Energizer 91 are really light weight and long running and I would be carrying those and reliable AA lights even of carrying 18650 lights because Mr Murphy and I have been known to be pretty close when least wanted at bad times!
Otherwise though it just seems that there is a lot more that could go wrong relying on 18650 cells that require charging in an environment that I have zero knowledge of ahead of the trip.
I have not been all over the world myself but am told that one can find AA batteries in every corner of the planet for the most part.
These are the batteries that I would plan to rely on rather than take a chance with not having light as needed. The Energizer 91 are really light weight and long running and I would be carrying those and reliable AA lights even of carrying 18650 lights because Mr Murphy and I have been known to be pretty close when least wanted at bad times!