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iPhone 12 Series Battery Drain Issue: How to Fix It?

  • 4 min read

Every time Apple introduces a new iPhone, people expect it to be better than its predecessor in every way – whether its looks, features, performance or even battery life! Similarly, when iPhone 12 launched, everyone was excited for its new battery life. Yet, the battery longevity of iPhone 12 as compared to iPhone 11 is not so impressive.

Users are excited about Apple's new iPhone 12 lineup but the battery drain issue is a massive let down. Until Apple finds a solution for this problem here is how you can fix battery drain issues in your new iPhone 12. 

iPhone 12 battery life

Battery Capacity Comparison of the Latest iPhone: iPhone 12 Series, iPhone 11 Series and iPhone X Series

iPhone X has Apple A11 bionic processor and iPhone 11 comes with the newer A13 bionic processor. Both these processes are incredibly powerful. One might think that iPhone 11 gives a bit of a speed boost, however, there isn't any noticeable difference in day to day usage.

With that said, in terms of battery life, iPhone 11 has more to offer as compared to iPhone X series. iPhone 11 battery gives up to 17 hours of video playback on a 3110mAh battery whereas the iPhone X only offers up to 13 hours with a 2716mAh battery.  This was a massive improvement on Apple's part. 

Now the iPhone 12 series comes with a more impressive and power efficient chipset: Apple A14. But, the iPhone 12 and 12 Pro offer a 2815mAh battery capacity which is 10% smaller than the iPhone 11. The battery capacity figure may give you a wrong impression but the smaller battery size is due to shrunken batteries.

What we need to notice here is that Apple is now only supplying USB C to lightning cables with new iPhones. So, the iPhone 12, iPhone 12 Pro and 12 Pro Max will last you as long as iPhone 11 as USB C is significantly more powered and has a faster charging speed. 

iPhone 12 charging

Thus, with a stronger chipset and USB C to lightning charging port, Apple’s iPhone 12 battery is better than both iPhone X and iPhone 11 series.

Let’s take a look at the comparison of the battery capacity of iPhone X, iPhone 11 and iPhone 12 line-ups.

Battery Capacity Comparison of the Latest iPhone


iPhone Model

Battery Size

Video Playback

iPhone 12 Mini

2,227 mAh

15 hours

iPhone 12

2,815 mAh

17 hours

iPhone 12 Pro

2,815 mAh

17 hours

iPhone 12 Pro Max

3,687 mAh

20 hours

iPhone 11

3,110 mAh

17 hours

iPhone 11 Pro

3,046 mAh

18 hours

iPhone 11 Pro Max

3,969 mAh

20 hours

iPhone X


13 hours

iPhone XR

2,942 mAh

16 hours

iPhone XS

3,174 mAh

14 hours

iPhone XS Max

3,179 mAh

15 hours


Reason for iPhone 12 Bad Battery Life

If the iPhone 12 series comes with a good battery, then why are users facing battery drain issues? Let's dive deeper and find out why! 

iPhone 12 5G connectivity


The reason why the iPhone 12 battery drains faster is because it supports 5G connectivity. Being fast it could drain your battery much quicker than LTE does. However, this is not a major concern as you can take certain steps to reduce battery consumption of your iPhone 12. 

Related: Why Is My iPhone Battery Draining So Fast?

How to Reduce Battery Consumption of iPhone 12 Series?

Use these simple tips to improve your iPhone 12’s battery life.

1. Get the Latest iOS 14 Update

The battery draining issue on your iPhone 12 could be because of a bug build, so install the latest iOS 14 update to combat that issue. Apple releases bug fixes through a firmware update, so getting the latest software update will fix any bugs!

iOS 14 Update

2. Turn Off 5G

The iPhone 12 lineup supports 5G which drains battery much faster as compared to LTE. One way to save your draining battery is turning off 5G when you are not using it.

iOS 14 comes with 5G settings, so go to Settings>Cellular>Cellular Data Options>Voice & Data and turn off the 5G option or enable the 5G Auto option. The 5G Auto option is the default option and does not over drain your battery. However, to maximize the iPhone battery life we recommend turning off the 5G options if not in use.

Turn Off 5G

3. Enable Low Power Mode

Every smartphone these days has a low power mode and so does the iPhone. Enable the low power mode on your iPhone 12 to conserve battery life. You can also shut off Siri, automatic downloads, automatic syncing and mail fetch.

The low power mode option is present in the notification menu when you swipe right from the screen. You can also find the low power mode in Settings>Control Center>Customize Controls>Low Power Mode.

iPhone 12 Low Power Mode

4. Place Your iPhone Facedown

iPhone 12’s iOS has a facedown detection feature that uses the ambient light sensor when you place the iPhone facedown to prevent the display from lighting up on a Notification. This feature helps increase the battery life by one hour as it turns off the display when not in use. Thus, you should always put your iPhone 12 facedown to conserve battery.

Place iPhone 12 Facedown

5. Disable Location

GPS is always trying to get your location accurate so it will constantly keep on updating your location.  Moreover, many apps also require location in the background. In this way, Location uses and drains battery life. So, always turn off the location if you don’t need it.

Disable Location of iPhone 12


Being the world’s most popular and sought-after smartphone line, the iPhone 12 series comes with many great features. However, the iPhone 12 battery drain issue has been bothering many users. Follow the tips mentioned here to save your iPhone 12’s battery life as much as you can!


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