---
title: "How to fix your iPhone 7 Plus battery that drains so quickly after installing an update to iOS"  
description: "How to fix your iPhone 7 Plus battery that drains so quickly after installing an update to iOS"  
author: "Akash Ahlawat"  
published: 2018-10-21  
canonical: https://answers.mindstick.com/qa/50877/how-to-fix-your-iphone-7-plus-battery-that-drains-so-quickly-after-installing-an-update-to-ios  
category: "troubleshooting"  
tags: ["iphone 7 plus"]  
reading_time: 2 minutes  

---

# How to fix your iPhone 7 Plus battery that drains so quickly after installing an update to iOS  

How to [fix your iPhone](https://answers.mindstick.com/qa/51464/how-to-fix-your-iphone-se-that-won-t-update-to-ios-version-11-4-1) 7 Plus [battery](https://www.mindstick.com/news/2755/a-new-kind-of-gravity-battery-might-have-unlimited-energy-storage) that drains so quickly after installing an [update](https://www.mindstick.com/forum/156355/what-is-google-pigeon-update) to [iOS](https://www.mindstick.com/articles/12425/ios-11-vs-android-o-a-comparison) \
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## Answers

### Answer by Hitesh Vohra

Some **malicious programs** might force the CPU to work indefinitely until it burns out. And it's at this point that overheating and battery draining problems arise. To figure out which of your applications is misbehaving up, look at [your iPhone](https://answers.mindstick.com/qa/50411/what-to-do-if-your-iphone-x-can-t-be-detected-by-computer) 7 Plus's battery use and see which app consumes the most power. This is how you get to this menu:

1. From the Home screen, **choose Settings.**
2. The battery should be tapped.
3. Wait for the Battery **Usage information to appear.**
4. Show Detailed Usage by tapping the button. This will reveal a **breakdown of front and background power use.**
5. **Tap the Last 7 Days tab** to receive a more comprehensive picture of power use over time.
6. The battery used in iOS 12 may be examined in the **Settings**-> **Battery-**> **Show Activity menu.** Tap Battery Use to get usage data in percentages. Tap Last 10 Days to see your iPhone's power use over time.
7. If you see any **apps using unusual amounts of power,** they are most likely **glitching** and are one of the causes of your phone's battery depleting quickly. In such a scenario, you'll have to deal with the rogue program.


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Original Source: https://answers.mindstick.com/qa/50877/how-to-fix-your-iphone-7-plus-battery-that-drains-so-quickly-after-installing-an-update-to-ios

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