Amazon.com : Neewer DSLR Battery Bag/Holder/Case for AA Battery and lp-e6/ lp-e8/ lp-e10/ lp-e12/ en-el14/ en-el15/ fw50/ f550 and More, Suitable for Battery of Nikon D800, Canon 5DMKIII, Sony A77 : Electronics
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This leather wallet has a built-in battery to charge your iPhone | TechCrunch