Why Does My Iphone 5s Battery Drain So Fast. Also using third party cables and modified cables can also blow the U2 IC. If your iPhone screen is always too bright it could be the main reason why you are experiencing the iPhone battery draining fast in cold problem.
One of the biggest battery drains is screen brightness. Use iTunes to make a backup. Make sure your iPhone is connected to a stable Internet connection.
To update your iOS version.
- How old is the phone - What are you doing when it drains battery - How much does it drain while the phone is idle So first off as your phone gets older draining more quickly becomes expected behavior. Check your iPhone battery health using one of these methods. 99 of overheated iPhones have a software problem so be absolutely sure youve tried all of the previous steps before deciding to get your iPhone repaired. Your iPhone has a section showing Battery Health information.
