Wi-Fi is one of those convenient features we're all so familiar with that it's easy to take for granted.And over the years, the way our phones use Wi-Fi has changed quite a bit, including some features and settings that'll inevitably drain your battery.Luckily, there's one quick setting that'll eliminate that battery drain.
Tell me if this sounds familiar.You use your phone after a drive, walking around a store, or even after it sits in the kitchen for a few hours, and you notice significant battery usage without ever waking the screen.That's because the Wi-Fi is running wild in the background—aside from just sending you app alerts and social media notifications.
Let's fix that.Whether your Samsung Galaxy is brand new or you've had it for years and are trying to improve battery life, there's one setting you probably don't realize is secretly siphoning your juice.The problem is "Wi-Fi scanning," and it runs even when Wi-Fi is turned off.
The problem is Wi-Fi scanning And here's what it actually does Often called Wi-Fi scanning, always-on scanning, or scanning always available, is a setting you probably agreed to during phone setup without realizing the consequences.Wi-Fi Scanning is a helpful feature on Android that runs in the background and allows your phone, apps, and other location services to search for nearby Wi-Fi networks.This happens even when your main Wi-Fi toggle in Settings is off.
Wait, what? Yes, it's scanning even when you turn Wi-Fi off.The main benefit of Wi-Fi scanning is better, more accurate location data and tracking, even indoors.This setting prevents your phone from fully turning off Wi-Fi, so location-based apps (like Google Maps, weather, and more) can continue working and stay up to date.
It also supplements spotty indoor GPS coverage, ensuring your phone has the best possible location data.And while that sounds great, it also means your phone is constantly waking up the CPU and Wi-Fi radios, sending signals, saving information, and sharing data with a bunch of apps, not just Google Maps.And as you can imagine, your phone constantly doing all of that, even when you turn Wi-Fi off, will make battery life worse.
And that's without talking about privacy and your location data.How to turn off Wi-Fi scanning Go ahead, disable Bluetooth scanning, too Don't get me wrong, Wi-Fi scanning has its benefits, and there are certainly reasons you might want to keep it turned on.However, if you're trying to figure out why your battery drains so fast, or you simply want better battery life on your Android device, you'll want to disable this setting.
To turn off Wi-Fi scanning on your Galaxy phone, pull down the notification bar and head into Settings.Scroll down, select Location, then tap Location services near the top.In here, you'll see location services for emergency earthquake alerts, amber alerts, and stuff like that.
However, it's also where you'll turn off Wi-Fi scanning to save battery.Scroll down past all the location services active on your phone, then switch the Wi-Fi scanning toggle to off.That's it, we're all done.
And now, when you turn off the main Wi-Fi setting, it'll actually stay off and won't wake up your phone constantly—thus improving battery life.Related If you use Wi-Fi, this hidden Android setting could be wasting battery Don't let mobile data secretly siphon your juice.Posts 5 By Joe Fedewa If you looked closely at the screenshots above, you probably noticed a very similar Bluetooth setting.
While we're here in the Location settings menu, you can also turn off Bluetooth scanning, which is essentially the same thing.Bluetooth scanning will allow your phone to turn on Bluetooth even when the setting is off, then search for and find nearby BT devices to provide more accurate location data.Both of these settings offer benefits for Android, especially for apps and services that rely on your location.
However, they both make your phone, along with all those signals and radios, turn on, scan, and communicate all the time, wasting precious battery.An easy solution to battery life woes I understand how changing something with Wi-Fi could be a concern, but trust me, you'll be fine after you disable Wi-Fi scanning.Connecting to your home network will still be fast and easy, pairing to Starbucks or hotel Wi-Fi won't be affected, and your phone will work perfectly fine.
It's a quick and easy way to get a little more juice back.However, if you notice apps like Google Maps, weather, or other location-sharing services are starting to struggle, or you need highly accurate location data, you might need to turn it back on.That said, I turn Wi-Fi scanning off on every Galaxy phone and keep Bluetooth scanning enabled, as it's more efficient and gives me better location data without the battery drain.
Samsung Galaxy S26 Ultra Brand Samsung SoC Snapdragon 8 Elite Gen 5 Get the new Galaxy S26 Ultra with AI smarts and an all-new privacy display.It's big, powerful, packed with AI, and you'll love the S-Pen stylus. $1300 at Samsung $1050 at Amazon Expand Collapse
Read More
