KMASHI 15,000mAh, $13 with code KMAS1991 | Aukey 20,000mAh, $25 | Jackery Titan 20,100mAh, $28

Everyone should own a large USB battery pack for long plane rides and power outages, and you’ve got three solid options to choose from today.

The KMASHI is the smallest of the bunch, but the best deal in terms of price-per-mAh. It’s also one of our top sellers. The Jackery and the Aukey have nearly identical capacities, but the Jackery costs a few dollars more due to its premium aluminum exterior.

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