PowerNOW! 3-pack Portable Device and Phone Chargers with Gift Boxes Don't let your portable devices go hungry. This portable charger gives them a juice boost to carry them over until you can get back to your regular charger. Get in a few more phone calls or texts, or maybe just a little more life out of your GPS app with some help from your PowerNOW! It's perfect for getting through unforeseen circumstances and emergencies when your regular charger is nowhere in sight.