February 4, 2011 7:30 am Smartphone Batteries: Quick to Drain The battery juice on your smartphone can be drained by GPS, Wi-Fi and other applications — even when you’re not using them. Follow some of these steps to prevent running out of battery. US & World Videos 3:24 Morgan Stanley expands OpenAI Chatbot tools to Wall Street Division 1:28 AI guiding public transit, emergency vehicles 1:35 Samsung unveils new Galaxy ring, phones 2:53 Russia's misinformation campaign against Paris Olympic Games 1:16 Watch: Cyber-security expert discusses hacking of water utilities
