25 of 27Image
Check for iOS updates regularly for unfixable bugs
In some cases, software bugs have led to complaints that battery life decreases quicker than normal. These bugs occasionally work their way into Apple's iOS, the software that runs on iPhones and iPads, but can often be fixed with a software update.
Normally, iPhone users are notified automatically when an update is available, and the change log will note if any bugs persist, particularly those relating to battery life. To manually check, head to Settings > General and then Software Update. Make sure you're connected to a Wi-Fi network before downloading anything to save money on your data plan.
Be aware of where you put your iPhone
Almost above all else, keep your iPhone and its internal battery within the operating range, so that it doesn't get too hot or too cold. An iPhone will generate heat depending on what it is being used for, so keeping it at a level temperature is important.
The warmer your iPhone gets, the faster the battery will deplete. Sometimes it's better to keep your iPhone out of your pocket and carry it in your bag — carefully, to ensure the screen or case doesn't get knocked about or damaged — or even clipped to your belt. Some cases will also result in the device getting warm, so choose your accessories and cases carefully.
Adjust human behavior: don't check your phone as much!
While it is often tempting to pick up your phone and check to see if there are any messages, notifications, or missed calls, one of the easiest ways of keeping your battery ticking over is to stop picking it up every few minutes. Putting your phone to "sleep" and "waking" it up will drain battery life.