Our iPhones continue to get faster, bigger, and better at taking photos and videos — but although battery life has improved over the years, so have our demands on those batteries. As a result, many phones still last about a day (or a bit more) with regular use.
That’s fine if you can charge your phone every night, but what if you forget to do it? Or what if you’re away for a night or two? Or what if your battery starts to drain alarmingly quickly for no apparent reason? There are lots…