Jackery Bolt | $24 | Amazon | Promo code BOLT6000
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Unless you have a charging cord handy, a USB battery pack is basically just an expensive paperweight. Luckily, that’s never a problem with today’s deal.

The Jackery Bolt (pictured above) is a little expensive at $24 for 6,000mAh (with promo code BOLT6000), but it includes a built-in Lightning and microUSB cable, so you won’t have to worry about carrying a spare. If you’re the forgetful type, that’s well worth the price premium.