How to check how many hours your Xiaomi phone lasted: all the ways with instructions

Why it is important to know the time of the smartphone

Every Xiaomi owner wonders, how many hours did my phone actually last? This information is not just for curiosity. It helps to assess the actual wear of the battery, detect software failures (for example, when the device does not turn off completely), or confirm the authenticity of the used gadget before buying. Manufacturers often claim 500-1000 charging cycles, but how to check how close your Redmi or POCO is to this limit?

Unlike the iPhone, where the data about the time of operation is hidden deep in the system, Xiaomi smartphones provide several ways to get this information — from standard MIUI tools to engineering menus and third-party utilities. However, not all methods are equally accurate: some show only the time from the last charge, others — the total value for the entire life. In this article, we will discuss 5 working methods, including hidden functions, which are not written even in the official documentation.

Warning: Time data may be reset after resetting or replacing the battery, and if you recently gave your phone to the service, the metrics may be incorrect.

Method 1: Using the standard MIUI menu (time from last charge)

The simplest method is to use built-in MIUI statistics, which will show how long the phone has been running since it last connected to charging, but it won't give you a summary of the entire life of the phone. It's good for quick checks.

Instructions:

• 📱 Open the Settings. → Battery and performance.
• 📊 Select the Battery Use section.
• ⏱️ At the top of the screen will be indicated the time of operation from the last charge (for example, "Screen: 4h 20m, Waiting: 12h 15m").
• 🔍 For detailed analysis, tap on the schedule - the distribution by application will be displayed.

Note that this shows the active screen time, not the total time of the phone’s state on, and if you want to know how much the device has been running in the background (for example, to track battery consumption in standby mode), this method is not suitable.

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If the battery statistics show an incorrect time (for example, 0 hours with a discharged battery), try restarting the phone or resetting the statistics in the Settings menu. → Battery. → Three points (⋮) → Reset the statistics.

Method 2: Engineering menu (#4636##) – Hidden data

The engineering menu is an Android service area that stores technical data that is not available to the average user. In some Xiaomi models (especially on pure versions of Android, like the POCO F1 or Mi A2), you can use it to find out the total system life since the first on.

How to open it:

1. Open the Phone app.
2. Enter the combination: ##4636### (on some firmwares it may not work – see the alternative below).
3. Select the Battery Information section.
4. Find Time Since Boot (time since last reboot) or Total Uptime (total uptime, if supported).

Important: on most modern Xiaomi with a MIUI 12+ shell, the engineering menu is blocked or does not contain data on the time of operation.

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It will open a testing menu where more information can be displayed in the Battery Info section.

Method 3: Through ADB-Teams (for advanced users)

If standard methods don’t work, you can get data directly from the system using Android Debug Bridge (ADB), which requires connecting the phone to a computer, but gives the most complete information, including the kernel and user interface.

Step-by-step:

1. Install. ADB-PC drivers.
2. Turn on the phone Developer Mode (7 times tap the MIUI version in Settings → About phone) and activate Debugging over USB.
3. Connect your phone to your computer and type in the command line: adb shell cat /proc/uptime
4. You get two digits (e.g. 123456.78 987654.32) One is the system's run time in seconds, the other is downtime.

To translate seconds into hours, divide the first number by 3600. For example, 123456/3600 ≈ 34.29 hours is how long the phone has been running since the last reboot.

Install ADB drivers on PC|

Enable the developer mode on Xiaomi|

Activate debugging via USB|

Connect the phone with the original cable |

Check the connection of the adb device team

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⚠️ Attention: Use ADB It can cause failures if you type unverified commands. Do not change system files without understanding the consequences.

Method 4: Applications for monitoring (AccuBattery, CPU Monitor)

If you want to not only know the time, but also track the dynamics, use third-party applications, which capture data in the background and plot graphs, which is convenient for analyzing battery wear.

Top.-3 apps:

• 🔋 AccuBattery shows the running time on a single charge, the number of charging cycles and battery wear, POCO other models.
• ⚡ CPU Monitor - monitors processor activity and total system life, useful for detecting programs that drain the battery.
• 📊 GSam Battery Monitor - detailed statistics with data exportability. Requires root rights for full functionality.

Example of data from AccuBattery:

Tip: Leave the application to run for 2-3 days for accuracy. The first data may not be complete.

Method 5: Checking through Xiaomi Service Center (official data)

If you want 100% accurate data on the phone’s life since release (for example, for warranty or used device checks), contact Xiaomi’s official service center. They have access to factory logs that don’t reset even after resetting.

What you can find out in the service:

• 📅 Date of first phone switching on.
• ⏳ Total working hours (in hours).
• 🔄 Number of complete charging cycles.
• 🛠️ History of repairs (if any).

How to request data:

1. Find the nearest Xiaomi service center.
2. Provide the phone IMEI (you can find it by command *#06#).
3. Fill out the application for diagnosis (the service may be paid, specify the cost).

⚠️ Note: Unofficial services may refuse to provide such data or provide inaccurate information. Always check if the center has the status of Authorized Xiaomi Service Partner.

Comparison of methods: which method is more accurate?

Not all methods are equally reliable. Here's a comparison table.

For most users, the best option is to combine standard MIUI statistics (for a quick look) and AccuBattery (for detailed analysis), and if you need data for serious purposes (for example, forensics or warranty disputes), you can not do without a service center.

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No way to tell the battery when it's been replaced informally, and then the data is reset, and you can only track the actual wear and tear through specialized tests.

Frequent Mistakes and How to Avoid Them

When checking Xiaomi’s time, users often encounter inaccurate data or crashes. Consider typical problems and solutions:

Problem 1: MIUI statistics show "0 hours" of operation with a discharged battery.

Solution: Connect your phone to charge for 10 to 15 minutes, then recheck the data. If the problem persists, reset the stats in the battery menu.

Problem 2: ADB-The team is not working (the device is not detected).

Decision:

• Make sure that USB debugging is enabled.
• Use the original Xiaomi cable.
• Install the Mi Flash Tool drivers.

Problem 3: Apps like AccuBattery show unrealistically high uptime.

Solution: This may be caused by a battery calibration failure: Perform a full discharge cycle (from 100% to 0%) and charging (up to 100% without interruptions), then restart the phone.

If none of the methods worked, it could indicate:

• 🔧 Damage to system files (flashing will help).
• 🔋 Failure of the battery controller.
• 🛠️ Unofficial firmware (for example, custom software like LineageOS).

FAQ: Answers to popular questions