How To Fix Bad Galaxy S9 Battery Life

Samsung Galaxy S9 and Galaxy S9+ great phones with a lot to love. They’re also two years old and some users are dealing with poor battery life and other issues. Whether this is from the Galaxy Android 10 update or in general. With that in mind, here are a few tips for fixing bad Galaxy S9 battery life issues.

Similar to previous models, the Galaxy S9 has a massive 3,000mAh battery and the larger Galaxy S9+ comes with 3,500mAh. Also, both have fast and wireless charging.

And while these are good capacities, battery life could always be a little better. That’s why we’re going to go over various settings, options, and different tips to help you get better Galaxy S9 battery life.

Samsung phones have many different options, controls and settings that you can change for a better experience. Be careful as some will have a negative impact on battery life. You can use the battery saver mode if you are in a difficult situation, but our tips will benefit your daily use. It’s here even when your battery starts showing signs of aging in 2020.

Find Apps That Eat Your Battery

One of your first steps is to figure out what’s causing the battery to drain so fast. Our first recommendation is to check for malfunctioning apps. If an app starts to malfunction or isn’t compatible with Samsung’s version of Android, you’ll run into all sorts of issues. Constant battery drain is a big problem that we see often.

If you use an app a lot, it will drain your battery. At the same time, there are some instances where an app uses an abnormal amount of more than it should, and we try to avoid that. We’ve seen this with the Oculus app that Samsung preloads on phones, Google Maps, and even Facebook. We have seen many complaints about the Galaxy S9 Android 10 (One UI 2.0) battery draining in beta, but everything is better latest version

To get started, head over to to see what’s going on.

The screenshot above is a typical day on the Galaxy S9+. I’m a heavy user, but still get about 20 hours of battery life with at least 4-5 hours of “screen on” time. You will also notice that there is enough battery left. Expect similar results on your phone.

Android System or “screen” uses the most battery life. This is normal. If you see anything else at the top of this list, that’s a problem. We recommend that you close the app, reinstall it or, if possible, remove it completely from your phone. Except for maps or something like Fortnite.

Restart Your Galaxy S9 to Fix Battery Life

There are many different reasons why your Galaxy S9 battery may drain very quickly. One of the easiest ways to stop these problems is to restart your phone. This sounds like a silly suggestion, but you’d be surprised how many minor issues are fixed with a simple reboot.

Press and hold the power button on the right side of the Galaxy S9, then select Restart. Once rebooted, your problem will most likely go away. This can fix whatever is causing the problems before it’s too late and you’re already out of juice.

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Disable Always On Display

One of my favorite Galaxy S9 features is the always-on display. Small clock, date, notifications and battery meter that is on display 24/7 even when not actually on and in use. This is the always-on display and is fully customizable.

Samsung claims that the AOD feature will consume less than 4-5% during an 8-hour workday. So while there’s a slight difference, turn this feature off if you’re looking for every possible advantage. Go to ve. Or check out this how-to guide.

Use Black Wallpaper

It’s not for everyone, but using Black wallpaper will also increase battery life. This is because Samsung’s AMOLED display technology works differently than most phones. It is more efficient when displaying black rather than color. Pixels don’t need to be turned on individually – or very high – to show a black image.

After downloading a beautiful wallpaper, long press an empty area of ​​the screen and go to Wallpapers to apply it.

Screen Brightness and Sleep Time

The display consumes most of the battery, but changing a few settings can minimize this loss. Like screen brightness and sleep timer. These minor changes along with everything else in this post should help.

Set the brightness to 50% or less and reduce it. We saw much worse battery life leaving the S9 on auto-brightness. The screen is already very bright, so turn it down if you’re not outside.

Turn off the “screen timeout” option in the display settings. This is how long the screen stays on without being touched or interacted with. Samsung uses 1 minute, but we recommend trying 30 seconds.

It no longer stays awake at a desk or table for a minute at a time every time you use your phone. Most users check their phone more than 140 times a day. That’s an additional 30 seconds, 140 times, when the screen was on for no reason. Turning off after just 30 seconds this reduces battery drain by 50%.

Turn Off Galaxy S9 Features You Don’t Need (like Edge)

Samsung phones have tons of software features. Some are extremely useful while others drain the battery for no reason.

Any previous Galaxy owner knows all about many gestures or gesture controls. If you’re not using them, turn them off to help save juice. It’s like swiping one hand over the screen to take a screenshot. There’s even an instant call feature by placing the phone to your ear while reading a text message. These are useful features, but turn them off if you’re not using them. That way all these sensors don’t use the battery for nothing.

Scroll through the fancy features list and look. Then turn off things like Smart Capture, Palm Swipe, Direct Call, Easy Mute and disable “Smart Stay” in display settings. All of these need power and sensors inside the phone for things we rarely use.

WiFi, 4G LTE, Bluetooth and GPS

Considering we use our phones 8-10 hours a day, summing up all these small changes would make a big difference. So if you are not using WiFi or Bluetooth turn it off. Connecting to WiFi whenever possible saves battery life. However, if you are not using WiFi but the Galaxy S9 is constantly trying to find and connect to a network, it will take a toll on battery life.

Another big drain on the battery is actually GPS. Things like Google Maps or Facebook messenger accessing the GPS chip inside your phone.

Go to , then select “Battery Saver” mode. This means that some apps like GPS won’t be as accurate as location information, but you’ll get better battery life.

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Battery Saver and Performance Modes

Then try Samsung’s built-in battery controls, savers or performance mods. you will find below new power saving modes. These limit certain features or reduce brightness, but increase battery life. Maximum mode can make your phone last 2-3 days on a single charge, if not longer.

Then you can also try different “performance modes”. These mods change almost everything, disable features and even slow down the processor to extend battery life throughout the day. Click here for more information.

Use Fast Charger with Galaxy S9

This next tip won’t fix any real issues you might encounter, but it will make your phone last longer. Samsung Galaxy S9 supports Adaptive Fast Charging. This allows it to go from 0-50% in just 20-25 minutes. You will only get these speeds if you use the correct charger or out of the box or buy a good fast charger.

If you don’t have extra “fast chargers” your phone will take 2-3 hours to charge and you will always have low battery. So, buy one of our five recommended fast chargers for the Galaxy S9. That way, you have as many batteries as possible, as often as possible.

Another option is to buy and use a portable battery or power bank. These are super convenient, affordable and will charge your phone as fast as a wall outlet. Here are a few of our favorite portable chargers. Leave one in your car, backpack or purse and have it ready when you need it.

What’s next?

Before we close with a few last minute tips, we want to talk about what’s next. This, of course, is the continuation of the Galaxy S9 Android 10 update. Also known as One UI 2.0 by Samsung. Google released Android 10 in August 2019, and we saw Samsung update older devices like the Galaxy S9 and Note 9 in January and February. With Sprint wrapping things up in early March, every model in the US now has it.

When your model gets Android 10 (if not already), expect better performance, longer battery life, smarter software, night/dark modes, and a host of new and useful features on your phone. You should see a slight increase in battery life as well.

After all, this phone may get Android 11 in 2021, but it’s a little early to start thinking and talking about Android 11.

More Battery Tips and Tricks

In closing, battery life always depends on how you use your phone because everyone is different. Not everyone is at the device all the time like me, but either way, these tips will help.

And finally, here are some last minute tips. Don’t use the always-listening wake-up command for Bixby, Samsung’s virtual assistant. Don’t use Samsung’s “video enhancer” feature, turn on Airplane mode as often as possible and restart your phone at least once a week. Seriously, reboot your phone often.

Turn on Airplane mode when you don’t need your phone for calls, messages or internet. This turns off all data, radios, services and more and most phones can last 4-5 days in this mode. If you’re traveling, give it a try.

These cheats and options are just the tip of the iceberg. Try a new launcher, download third-party text apps, or better yet, disable Facebook. If you’re still not satisfied with battery life or need more energy, take advantage of fast charging on the Galaxy S9 and buy a fast portable battery charger.

Additionally, we have a helpful guide to fix some common Galaxy S9 problems that you may want to read. Then check back often as we’ll be constantly updating this post with useful information so you can get the most out of your phone.

Moyens Staff
Moyens I/O Staff has motivated you, giving you tips on technology, personal development, lifestyle and strategies that will help you.