We all have daily problems with technology, but how many of us can fix them? Mya Le Thai is a scientist studying at the University of California, Irvine. She recently discovered a process that may result in batteries that last forever. VOA Learning English spoke with Thai about her discovery. Thai said she had been frustrated that the batteries for her wireless devices degrade. Over time, they fail to charge fully. Thai did not like to have keep her wireless laptop connected to an electrical outlet. She decided to do something about that problem. At first, she and her team at UC Irvine thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium-ion batteries to last forever. Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge.