There are a few major reasons why your iPhone loses battery power, both in the short and long term. Asking your phone to perform high-performance tasks, like running games with intense graphics and allowing constant push notifications to be delivered to your device, are key reasons. Long-term battery wear and tear is often the result of having an older battery, improper charging, and consistent exposure to heat during charging.
Some of these issues can only be helped once you right the wrongs of improper charging habits or running too many intense apps that take up tons of storage and other resources. But there are two mistakes that you could be making right now that are even easier to correct. These two settings are taking hours off your iPhone battery life — disabling them or using them differently can help.

1. Background App Refresh
Background App Refresh functions as a setting that updates app content in the background, even when you aren’t using the app. If, for example, you have all of your apps enabled to refresh when you aren’t using them, your device is literally never not at rest. It is constantly working and your battery becomes drained as a result. Some apps use Background App Refresh that is tied to location services, which only increases the battery power it uses.
Go to Settings > General > Background App Refresh and either turn the setting off altogether or choose only the apps that you truly need it for and disable the rest. Tech experts say turning off the setting on social media apps, news and entertainment, shopping apps, and travel apps like Uber is helpful for saving your battery.

2. Location Services
Location services use so many resources to locate your exact location. Using GPS, Wi-Fi, and other systems is extremely taxing on your phone, and some of the apps that often use location services (and help drain your battery) include navigation apps, social media, shopping apps like Target and Amazon, and weather apps.
Limiting which apps can see your location is a key way to conserve battery power. Go to Settings > Privacy & Security > Location Services. Set apps to "While Using the App" instead of "Always.” And consider turning this setting off for apps that don’t need it.

