RAVPower 5,000mAh Battery Pack | $11 | Amazon | Clip the $2 coupon and use code KINJA652
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You probably have a big-ass battery pack that can keep your phone charged for days, and that’s great! But you should also own one that can fit in your pocket, and this 5,000mAh model from RAVPower fits the bill.

Clip the $2 coupon and use promo code KINJA652 at checkout to get it for $11, which is a great price for a full phone charge whenever you need it.