iPhone battery life booster shot will do wonders for you! Here is how to do it in brief

tech.hindustantimes.com:

If you face issues with your iPhone battery life whenever you go out, then here is an easy way to give it a booster shot. The simplest thing that you can do, apart from using it sparingly, is to enable the Low Power Mode on your iPhone. This feature will immediately stop or slow down all tasks running in the background, thereby conserving power. It reduces the amount of power that your iPhone is using when the battery gets low.

However, the mistake most people make is to switch on the Low Power Mode when the battery reaches the 20% or even the 10% mark. The idea is to make sure you switch it on around the 50% mark. Probably, you would know when you will run out of battery even before you go out of the house. Just think forward and enable the low power mode before leaving. Of course, make sure you charge the phone up to at least 85% mark before that. You will find that your iPhone will last much longer before you need to recharge it.

When and how will you find out if you are running low on power? You will know when the battery gets to below 20% mark as it will automatically show a pop-up to enable Low Power Mode.

The Low Power Mode reduces or affects 5G services, Auto-Lock, Display brightness, Display refresh rate, Some visual effects, iCloud Photos, Automatic downloads, Email fetch, and Background app refresh.

To turn Low Power Mode on, you will need to go to Settings of your iPhone first. 

Go to Battery and enable the mode. 

You can also turn Low Power Mode on and off from Control Center. To do so, go to Settings and then visit Control Center. 

Here, select the Customize Controls, and then select Low Power Mode to add it to Control Center which will allow you to swiftly enable Low Power Mode whenever you want.