Longer-lasting battery tech is here, but iPhone owners will need to wait a while

As I mentioned a few days ago , breakthroughs in battery tech always seem to be two years away, but there have been some modest but worthwhile developments. One of these, silicon-carbon batteries, is already found in some Android brands, and battery-test results clearly illustrate the benefits. But experts say it will be a little while before Apple adopts the new battery chemistry in future iPhones … more…