$50 isn’t a bad price for a decent hiking backpack, but this one includes a built-in solar panel and 2,000mAh USB battery pack so you can keep your phone charged. That’s handy for a long hike or camping trip, and potentially life-saving in the case of an emergency. [ECEEN Solar Powered Hiking Daypack, $50 with code XRUIRX3A]

If you don’t need the bag, ECEEN is also offering a 13W dual USB solar panel—which is significantly larger and more powerful than the one that comes with the backpack—for $40. [ECEEN 13W Solar Charger Foldable Portable Solar Panel With Dual USB Output, $40]

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