Solar Charger plus Bank options

[mtbraun]

Hello - very new to the lightweight game. I need to find a lightweight durable solar panel charger (or whatever this group would recommend) and a charging bank for a 10 day Brooks Range backpack hunt in May. I currently have a 20k mAh battery and no charging option, but I was hoping there would be a lighter option. I realize I'll lose battery capacity with less weight. I'm hoping I could get by with something smaller and lighter and just charge it with the solar panel. Not afraid of "buy once, cry once." Thank you for the advice.