RAVPower 12,000mAh USB Battery Pack, $21 with code W9D5HL9H

This RAVPower battery pack features dual 2.4A outputs and a 2A input for faster recharging, but the real reason to buy it is the size: I don’t think I’ve ever seen a more pocketable 12,000mAh charger, especially not one with dual outputs.

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