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As you can see below, iOS also tells you the App Store app is using location services to “find relevant apps nearby”. But you may not find this option in all apps as developers need to explicitly add support for it. If you’ve accidentally disabled location services for an app that needs to use it, don’t worry, it will prompt you to give access to Location Services when you launch it. OS includes a smarter multitasking that lets apps fetch content in the background. Although Apple has a lot of optimizations in place to ensure that battery consumption is minimal, it’s possible that a poorly developed app could be using this feature, which could end up draining battery life. Facebook or other apps that don’t absolutely need to be updated all the time. Background App Refresh is a great feature, but you don’t need it for every app. One of the biggest culprits for battery drain according to a former Apple Genius technician is the Facebook app, so he recommends disabling Location Services and Background App Refresh for Facebook.
In some cases, people have actually seen the battery percentage increase. Facebook continues to optimize and improve their app so this may not be required in the future. Push email can be a primary cause of battery drain on some devices. Fetch New Data. You need to check if the email account has been set as Push, Fetch or Manual. Push ensures that you get an instant notification when you get a new email, where as Fetch will look for new data 15 minutes, every 30 minutes, hourly or when you launch the Mail app (manually). You may want to disable Push email temporarily for your email accounts to see if it increases battery life. Alternatively, if you use multiple email accounts then you may want to disable Push for email accounts where you don’t need to get an instant notification for new email, and switch to Fetch. The higher the fetch interval, the better it is for battery life, so you can set it appropriately based on the importance of the email account.
If you live or work in an area that has poor or no LTE coverage or your carrier doesn’t offer LTE yet, then you should consider switching to 3G to prevent the LTE radio from draining battery life unnecessarily. Enable LTE/Enable 4G and tap on the Off option. Battery and tapping on the toggle. Low Power Mode temporarily reduces power consumption by turning off or reducing mail fetch, background app refresh, automatic downloads, and some visual effects. Apple states that Low Power Mode mode can improve battery life by an additional 3 hours. OS includes a facedown detection feature, which makes use of the ambient light sensor to ensure the display doesn’t light up when you receive a Notification when you place the iPhone facedown. The feature along with other refinements helps in increasing battery life by an additional hour as it turns off the display when not in use. So when you place your iPhone on the table, you should place it facedown to conserve battery life.
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