I went down the solar road a few years ago.
I didn't have anything with as good performance as the one R93 has.
But tried a few models a eton and a roman both from H&F, then found these battery packs that where way smaller and lasted a week easily
I now carry 2 depending on how long we are going in for.
https://www.mightyape.co.nz/product/...black/24343297
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