I’ve found that leaving Wi-Fi and Cellular on, while customizing which apps are okay to use it for background app refresh — to be the best fit all the way around.
You can also go into Settings and switch Low Power Mode on too, but that’s a bit more drastic.
There’s a good chance you have an app that’s bugging out in the background.
I scoured Apple’s help site and the Internet for the fix and only came up advice like, “look at what apps are using the most battery,” “enable low power or airplane mode,” and “just wait, it will all get better.” Okay. So I went back to expert advice from Scotty Loveless, an Apple consultant at who helped me with i Phone battery problems earlier this year.From earlier tips and tricks he taught me, I was able to reclaim my battery life once and for all.(Or until the next update at least.)Here’s how to do it.Most apps set to default Always, so you basically have to set this every single time you download a new app or there’s an update.At the end of all of your apps in Location Services, you’ll see System Services.Letting your apps keep tabs on your whereabouts is another real battery-burner.Location services uses GPS, Bluetooth, cell tower locations and crowd-sourced hot-spots to place your phone on a map.You can turn this off altogether, or customize which apps you want to keep running by going down the list and toggling them on or off.The other option you have here is to only use background app refresh on Wi-Fi, versus Wi-Fi and Cellular.Let’s start with a basic battery check: Go into Settings Battery.Scroll all the way down to the bottom and you’ll find two numbers, one for Standby and one for Usage.