Lot of good info here. I definitely appreciate the feedback. Do you have a link for that fishing line?

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Here is the rope I am using. https://www.amazon.com/gp/product/B08VNY4CCM/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&th=1

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I used the solar powerbank during the last two hurricanes in Florida that took out my power. Just to charge my phone though, nothing crazy. It's been fine for that. I left it in the sun all day the previous day for it to charge and it's held its charge until my power came back. Probably had a good 3/4ths of charge left.

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My poncho doesn't have grommets. What I was thinking was buying a tarp for this reason but I'm not sure if I can find one small enough for my bag but also big enough for a shelter.