/diy/ - Do It Yourself

hey /diy/

i'm looking to buy a setup to charge electronics (laptop is the primary goal) with solar. I'm more interested in a versatile setup which can be supplemented by other power sources, or hooked up to more batteries.
Not just some cheesy "roots" backpack which barely works my calculator.

Does anyone have experience, or ideas for this? I love the idea of being able to use it on a backpack but am open to other ideas and want to get creative, looking for ultimate portability with my laptop.

ideas on battery packs for it, what volatage/watts do i want?

tl;dr : solar packs? battery packs? ideas?