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Nite Ize Locking S-Biners.
Lots of different sizes, from one inch bigger than the ones pictured, so a bit smaller than the one on the solar battery. I really like them so far, no worry whatsoever about a carabiner opening, and the S makes it really easy to take things off, while still leaving it attached to whatever. Home Depot has them. I'm also using a smaller one to keep gloves together, much nicer than the shitty plastic clip currently on my gloves.
Voltix 13600Mah solar battery.
Had the 8000Mah one, was more rugged but it got lost, so now I have this one. Solar panel is nothing to write home about, charges 2x devices @1Amp, and has an alright LED for a flashlight on the bottom. You can also charge of off AC. $25 nomorerack com would definitely recommend for the price.