How To Fix Fast Draining Battery

Galaxy S21 Battery Draining Fast? How To Fix It

While the Galaxy S21 is a fantastic phone, its battery life isn't always the best. Learn how to extend its endurance with these helpful tips.

The Samsung Galaxy S21 is an extremely capable Android phone — for as long as its battery lasts. Overall, Samsung got a lot right with the S21. It has a stunning 120Hz AMOLED display, great cameras, and blistering-fast performance. All of it comes in a sleekly designed body, not to mention for the competitive $800 starting price (which is often lowered thanks to endless Samsung offers).

Almost everything about the Galaxy S21 is top-notch, but battery life can be a potential pain point. The 4000 mAh capacity is enough for most people to get through a full day of normal use, but for users with especially demanding workflows, the S21 can leave something to be desired. While there's no way to magically improve battery life on the S21 and turn it into a two-day device, there are steps users can take to help it last as long as possible per charge.

For starters, it's worth using Samsung's built-in optimization feature for giving the S21's battery a quick boost with just a couple of taps. Open the Settings on the Galaxy S21, scroll down the page, and then tap 'Battery and device care.' This shows a score out of 100 to indicate how well the S21 is running, taking into account its battery performance, storage, and memory. Tapping the 'Optimize now' button at the bottom of the page runs an optimization sweep, with the tool closing unneeded background apps, looking for any unusually high battery usage, and detecting any app crashes. This doesn't need to be done all the time, but it's a good idea to run one of these optimization checks every once in a while (or whenever the S21 starts losing battery life faster than expected).

Other Galaxy S21 Battery-Saving Tips

On that same Device Care page, tap the 'Battery' button to view the full battery settings for the Galaxy S21. Along with showing the phone's remaining battery life and current usage, there are also a few additional battery-saving tools to take advantage of. The first feature that's shown is 'Power saving mode' that, while not something to be enabled 24/7, is a great way to extend the S21's battery life for those times when it's getting low and a charger isn't to hand. It can be enabled right from the Battery page by tapping the toggle next to it, but by tapping the 'Power saving mode' name, users are shown a more in-depth page of how it works. There are also settings to customize how Power saving mode works, such as having it turn off the always-on display, limit CPU speed to 70%, decreasing display brightness by 10%, and more.

Users can also tap the 'Background usage limits' option on the Battery page, with this allowing them to select apps that should be put to sleep or put to deep sleep. Most users probably don't need apps like Best Buy or Netflix constantly running in the background, so making sure they're added to these lists is a smart move. The Galaxy S21 automatically adds apps to these lists as it sees fit, but users can also go in and add/remove them as they see fit. Once again on the Battery page, tap 'More battery settings' and double-check that 'Adaptive battery' is enabled. When on, the feature"Limits battery usage for apps that you don't use often."

The final tip has to do with the Galaxy S21's display. While the 120Hz refresh rate does look amazing, it's also a considerable strain on the phone's battery. If someone is trying to make their S21 last as long as physically possible, turning off the 120Hz refresh rate is an option to consider. To do this, open the Settings app, tap 'Display,' tap 'Motion smoothness,' tap 'Standard,' and then tap 'Apply.' With all of those tips in mind, the Galaxy S21 should be at peak battery performance.

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Source: Samsung

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About The Author

Joe Maring (995 Articles Published)

Joe has been actively writing and talking about consumer tech since 2012. His biggest passion lies with smartphones, but he's happy to talk your ear off about just about anything with a CPU. He lives in Kalamazoo, MI with his wife, two cats, and pit bull/boxer mix.