Right now you can score some sweet savings on Kmashi's portable battery packs at Amazon with a coupon code. For as little as $6 you can grab a 5000mAh power bank to charge your favorite gadgets while on the go without tethering yourself to a wall. The 5000mAh model has one port and a perfectly pocketable design for charging on the go while the two-port 15000mAh model has two ports and a slim design for stashing in your gear bag or purse.

These two are currently on sale with coupons:

If you find your phone running down a little too quickly during the day, you will want to have one of these around. At these prices, you may want to pick up some gifts for others as well. Be sure to act quick, battery deals like these usually sell out before long.

See at Amazon

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