At their default, out-of-the-box settings, the S9 and S9+ are firmly in the overnight charging camp, but there are a few tweaks you can make to those, to make them last longer on a charge, and avoid the need for a – unless you are gone for the weekend camping, that is. So, what can you do?Seriously, this one should come at the top of your list. The new Always-on display on the Galaxy S9 and S9+ is a pretty thing, with even more pertinent info being placed there for your attention, and the ability to create custom colored graphics to showcase. It is a battery hog, however. Our modest observations show that leaving this setting on drains about 1% of juice per hour, meaning that even if you don’t do jack with your phone, it will be like you have wasted 1-2 hours of screen-on time on a charge anyway, depending on the usage. Go to Settings>Lock screen and security, or type AOD in the settings search bar, and switch it off.Turn on MID power modeThis one is good. It will turn off Always-on display for you, will throttle the processing speeds a bit on the most power-hungry top end, but not to the extent you’ll notice in everyday interactions, will set a lower logarithmic brightness threshold, and will introduce a more aggressive background app management. Settings>Device maintenance, and tap on the Battery option below, or simply type battery in the settings search, then set the Power saving mode to the MID levelStaying alive: only the chat appsAfter the display and/or a revved-up processor during gaming, the most power-hungry components in the daily life with your mobile are… the apps. Yep, while you may think that changing the display resolution or choosing a darker theme since it’s an OLED display, will do something, but those can’t compare with reigning in rogue CPU wakes, and push notifications that keep the phone alive at all times. Thankfully, Android Oreo has gotten better at background app management, and Samsung provides power-saving modes that kill extra rogue apps, but if those are too aggressive, you may lose notification abilities, which is especially hard when it comes to chat apps. Go to Settings>Device maintenance, and tap on the Battery option below, or simply type battery in the settings search.Hit the “Unmonitored apps” option below, and pick as exclusion apps that won’t be put to sleep your Facebook Messenger, Slack, Gmail, WhatsApp, Viber, and any messaging, chat or other app that you don’t want to cease getting notifications from. App developers are getting better at circumventing power-savers, but it’s a constant cat and mouse game between killin the app by the system, and resurrecting it only to get a notification, and the score is not in favor of developers.Now, for the actual alerts, type “Notifications” in the settings search bar, and turn them off for all apps, then pick only those that you wish to get alerts from. Turn off Wi-Fi, Bluetooth, and ‘High accuracy’ location scanningSeriously, again, no amount of LTE tower pinging, talking on the phone, or any other usual suspect when it comes to wireless radio battery drain can affect your mileage as much as constant Wi-Fi scanning for non-existent networks. This thing is a giant power hog, and you should kill it with fire if you have exhausted all the usual culprits for your battery drain. Bonus points: by default Google tracks you even when Bluetooth and Wi-Fi are off, so if you ditch scanning, you’ll make it harder.Type “Improve accuracy” in the settings’ search box, then turn Wi-Fi and Bluetooth scanning offType “Locating method” and switch it to “Phone only,” if you need to keep GPS on at all times. When playing Pokemon Go, navigating, or any other scenario you need high accuracy, turn it back on for the sesh.Ditch Chrome for Samsung InternetLook at the apps that are using the most power on your Galaxy S9. Unless you just spent an hour gaming, editing video, or chasing Pokemons, chances are that the largest battery drainer on the software side is Chrome. Those countless tabs you have open, with all the scripts and media running on them, don’t come easy on the processor, and Chrome isn’t one to cluster processes, but rather manages tabs separately for stability, resulting in a huge toll on the battery. Samsung has an excellent built-in browser that is not only a bit faster than Chrome in synthetics, but comes with extras, too. The newest Internet Browser version on the S9 and S9+ features protected browsing (alerting users when visiting sites that try to steal information or install malware), and various interface improvements (including an “Add to home screen” icon for web apps, and a reader mode for news articles). Furthermore, tab switching has been optimized, and is now more efficient on low-end devices with 1 GB of RAM or less. Use that one, and you may see a significant reduction in browsing-related draw.Use Facebook/Messenger LiteUpdating the status quo, media postings, likes or dislikes of countless friends with a minimal battery toll is not for the faint Facebook app developer, and leaving Mr Zuckerberg’s creation running in the background will suck the living juice out of the S9’s, or any other phone’s pack. Ditto for the ubiquitous Facebook Messenger chat app. You may have heard horror stories about the battery consumption of these two, and, although Facebook says they are getting better, it still outed “Lite” versions of the apps.Go to the Play Store and get them, then look at the third point in our guide, and place them in the “Unmonitored apps” list in your battery settings. If you are longing for the full Facebook experience still, you can simply keep it in a browser tab, and will be better off still than using the Facebook app.The ones listed above are your best bets for extending the battery life on your Galaxy S9 and S9+ without sacrificing much of anything in the process, but there are a few other tweaks you can experiment with, supplied below. Those won’t make as much of a difference, but are still fun to toy around with, and see if your mileage will vary. Anything else you might have found to work on the Galaxy S9 and S9+ when it comes to battery life?
Extra tips to improve battery life on the Samsung Galaxy S9 and S9+
Extra tips to improve battery life on the Samsung Galaxy S9 and S9+
1. Use a darker theme
Going for a darker theme with your Samsung phone is a simple and efficient power saving trick. Due to the way Samsung’s Super AMOLED displays are designed, the color white requires the most out of the screen in terms of power draw, so slapping a black or dark wallpaper/theme will save you a decent amount of power. You can change your theme by going to Settings -> Wallpapers and themes.
2. Tweak the automatic brightness
Samsung devices have allowed users to offset brightness even when under automatic mode for years. It’s a really nifty feature, as your phone will still adapt to your surroundings, but the max brightness limit is yours to control. The huge display is among the most power-hungry components inside your smartphone, so you have to keep it in check.
3. Should Intelligent scan, gestures, and “Smart Stay” stay?
Smart Stay is a useful feature – it detects when you’re looking at your phone’s display. If you are, then your screen won’t go to sleep as long as you’re looking at it, which can be handy if you’re frequently reading e-books and such. While this feature is undoubtedly nifty, the process does consume power. Thus, if you don’t think you will use it, or any of the multiple gestures that Samsung offers, turn them off. Ditto for the Intelligent scan ID that unlocks the phone with your face, if you are only using a fingerprint to unlock it, as it will drain unnecessary power.You can do that by going to Settings -> Advanced Features or Lock screen and security
4. Fine tune screen timeout
While we’re still on the screen timeout topic, we feel obliged to mention something that may be obvious for most of you. It makes no sense to set a long timeout period for your display. All of us are probably used to turning the screen off when we’re done operating with our phones, but every now and then, it just so kinda happens that we forget to do it. Setting your timeout to 30 seconds or a minute will be more than enough for your needs, while it will also guarantee that your display won’t stay turned on for too long while not used. Tweak this option by going to Settings -> Display -> Screen timeout.
5. Keep screen turned off
This one should be enabled by default on your S9 or S9+, but you might want to make sure just in case. Keep screen turned off is a feature on Samsung devices allowing them to recognize when they’re inside a pocket or a bag, and shouldn’t be turning on in the event of an accidental button press. Not only will this save you from butt-dialing people, but also help your battery life.You can check if it’s enabled by going to Settings- > Display -> Keep screen turned off.
6. Game Launcher and Game Tuner are your friends!
Game Launcher has been around since the introduction of the Galaxy S7 and S7 edge. If you’d like to spare your battery while gaming, make sure to press the Save Power toggle when you’re in the app. As for Game Tuner, this is a Samsung app that isn’t automatically installed with your S9 but it can be downloaded for free at Google Play. It is an application that enables you to change the resolution and frames per second settings in mobile games that require tuning for different Android devices and thereby control heat generation and battery drain.Download from Google Play