For today only, this Xtreme 2600mAh PowerStick Slim Portable Battery Charger drops from $39 to $14 to $12 using our exclusive code BRADS-POWER12 at Shark Stores. Plus, the shipping is free using the code. This is the best price we could find on any similar portable charger by $20. This charger works with any device that uses a mini- or micro-USB port, such as cameras, video cameras, MP3 players, and smartphones. There is no sales tax, except NY.