[danjoc]

>keeping a charge was almost impossible

Hey Jesse, pick up a solar panel. You can get waterproof two usb port that'll crank out 20-30 watts ~$50. I'd recommend an ARM laptop too. They're cheaper and Intel is generally too power hungry anyway. A Samsung Chromebook Plus used on swappa would be really nice. It has a really bright display so you can still see it outdoors in the sun. For data, T-Mo is unlimited for $30/mo pre-paid.

Put your panel in the sun, sit in the shade at a park, tether your phone for internet, and you're golden. You can strap the panel to your backpack and charge on the move too.

[istorical]

Any link or suggestion for laptop solar chargers? I want one.

[danjoc]

Here's a few choices,

https://www.amazon.com/SOKOO-Portable-Efficiency-Reinforced-...

https://www.amazon.com/Foldable-Waterproof-Efficiency-Cellph...

https://www.amazon.com/Balight-Outdoor-Foldable-Powered-Char...

28W basically gives you an fourth panel, but your backpack is probably 3 panels tall.

[int_19h]

Most of these don't provide anywhere near the advertised wattage. And when they do, it's usually in direct bright sunlight (i.e. depending on where you are and what season it is, it can be that efficient only for a few hours, and sometimes none at all).

If you want a decent portable solar panel, get the non-flexible monocrystalline one.

[danjoc]

Any suggestions on models?

I like the flexible one because it's lightweight and not easy to break. I'd be open to other options though if you have suggestions.