AT&T announced it will set up 25 solar-powered charging stations for mobile devices throughout New York City. For this project, dubbed Street Charge, AT&T partnered with solar power company Goal Zero and Brooklyn-based Pensa Design, which pioneered the concept a couple months back. The chargers will begin popping up on Tuesday at Fort Green Park in Brooklyn. A total of 25 will be installed in Union Square, Brooklyn Bridge Park, Coney Island, Riverside Park and Hudson River Park. “Nearly half of all Americans own a smartphone, and the amount of time we spend on handheld devices has increased dramatically,” said Joe Atkin, president and CEO of Goal Zero. “All too often, we hear the dreaded low-battery beep and it happens at the most inconvenient times. Street Charge will fix that.” The chargers include six USB connectors: 30-pin and Lightning plug for iPhones and iPads, and micro-USB for Android and Windows phones.