PowerNOW! Portable 6,600 mAh Tablet, Phone and Device Charger Access the power you need, when you need it. You're out at a ball game, a concert or shopping at the mall. Your device is breathing its last virtual breath. How will you call to check in? Don't worry. Like its namesake, this compact device provides PowerNOW so you can place the calls you need to ... or maybe just get a few more photos on game day.