Whether you’re going on a week-long camping trip or strapping in for a long-haul flight, you’ll never have to deal with a dead iPhone if you bring this portable phone charger along for the ride.

On sale for $34 (it used to sell for $80), Anker sells a 12-ounce portable phone charger, Anker PowerCore 20100. It’s small enough to fit in a pocket, yet packs in enough juice to charge an iPhone 7 up to seven times. It will charge older-gen iPhones too, of course. It will also charge a Samsung Galaxy S6 Android phone more than five times, or an iPad mini more than twice. Better still, this portable phone charger boasts a pair of fast-charging USB ports, perfect for sharing the charger with a friend.

Check out the Anker PowerCore 20100 on Amazon!

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