Battery life is a day-to-day concern for many smartphones users who are frequently surfing the Internet, checking e-mails or staying connected on social media. Often a single charge for a battery isn’t enough, leaving consumers looking for options to extend their device’s life. So what options are left for those that don’t want to spend time camped out by an electrical outlet? The flexible solution is to invest in an external battery. But what about consumers that don’t want to carry around a bulky battery? Then the Calibre Ultra’Go nano power station may be an option worth exploring….