Around these parts, we like our gadgets. Unfortunately, accumulating a couple of them leaves us regularly in need of juice. Power outlets become scarce after stepping outside the house, which is why it's worth picking up an external battery pack or two. Currently you can get an Anker Astro E5 15,000mAh battery pack for $49.99 from Amazon, but with a coupon code, you can bring that down to $35.99.
This external battery comes with two USB ports (5V/2A and 5V/1A), so you can charge two devices at once. This could especially come in handy the next time the power goes out or two kids (for the sake of this example, ages 25 plus or minor 15 years) both throw a fit over dying devices in the backseat.
To get the discounted rate, just enter AASTROE5 at checkout. This should immediately knock $14.00 off the price. The link below will take you straight to the store.