In under 18 months, my iPhone's battery life has gone from great to terrible
Adrian Kingsley-Hughes/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways My iPhone is less than 18 months old. It now cannot make it through a day without a recharge. Nothing appears abnormal in the settings. Rather than do my usual and upgrade my iPhone again last year with only about a year on the clock, I decided to try what most people end up having to do -- keep it going for a few years. Apple says that the battery is designed to retain 80% of its orig