Why does my phone battery die so fast?
- Written by Steve W. Martin, Professor of Materials Science and Engineering, Iowa State University
Already out of charge – again?!fizkes/Shutterstock.com
Why do batteries die? And, why can they only be recharged so many times before they won’t hold a useful amount of charge? My young son asked me about that years ago when his battery-powered toy car stopped moving, wondering about what he called an “everlasting battery.”...