Xiaomi Battery Performance: Why is this process necessary and should it be removed?

If you've ever looked into the running process list on a Xiaomi smartphone through Settings → Apps → Launched or special utilities like Developer Options, you've probably noticed the strange system service Battery Performance. It's constantly hanging in the background, consumes a little power and has no explicit user interface. What is this process? Why does it work even when the phone is idle? And most importantly, can it be removed or disabled to save battery power?

In this article, we will discuss in detail how Battery Performance is related to optimizing power consumption in MIUI, what functions it performs at the system level, and what happens if you try to deactivate it. You will also learn what hidden settings Xiaomi allows you to fine-tune the service without risking the stability of the device.

What is Battery Performance in Xiaomi Smartphones?

Battery Performance is a system component of MIUI that monitors and optimizes power consumption at the Android core level, and unlike features visible to the user like Battery Mode or Ultra-Economic Mode, this process works at a deeper level, interacting with:

• 🔋 Power Controller (Power Management) IC) — chip that regulates the supply of energy to the components of the smartphone;
• 📊 Linux kernel – manages the allocation of processor resources depending on the charge;
• 🔄 Background services – restricts the activity of applications that waste energy idle;
• 📉 Battery degradation algorithms – monitor temperatures and charging cycles to extend battery life.

In fact, Battery Performance is Xiaomi’s energy-saving brain that works in parallel with the settings you see, for example, when you turn on Battery Mode manually, it’s this process that applies OS-level constraints rather than just showing a beautiful switch in the interface.

Why does Xiaomi need this service?

In short, Battery Performance is designed to keep your smartphone running longer on a single charge without losing performance, but let's see how it does that.

1. Dynamic back-end limiting: It analyzes which apps are actively consuming energy in the background (such as instant messengers or social networks), and pauses them if they are not used, while taking into account your habits – for example, it will not restrict WhatsApp if you use it often.
2. CPU clock optimization: When the battery power drops below 15-20%, the processor automatically goes into low power mode, but without a sharp drop in performance (as opposed to manually switching on saving mode).
3. Temperature control: If the smartphone overheats (e.g. while playing or charging), Battery Performance temporarily reduces the load on the chipset to prevent battery damage.
4. Charging cycle management: The service ensures that the battery is not energized 100% for too long (which reduces its lifespan), and if necessary, turns off power at 95-98%.

Fun fact: In some Xiaomi models (like the Redmi Note 12 Pro+ or Xiaomi 13 Ultra), this process is also responsible for adaptive charging, a feature that teaches algorithms to your habits (for example, if you normally charge your phone at night, the system will keep the charge at 80% until morning, and then refuel to 100% before waking up).

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If your Xiaomi is running out faster after the MIUI update, try resetting Battery Performance: Go to Settings → Applications → Application Management → Three dots (menu) → Reset application settings. This will return optimization to factory settings.

Can Battery Performance be removed?

You can technically remove this process, but only if you have root rights and you're prepared for serious consequences.

The biggest problem with removal is the loss of adaptive power management. Without Battery Performance, the smartphone will use up energy as if it doesn't have any saving algorithms.

• 🔋 Battery will be discharged 20-30% faster in standby mode;
• 🔥 The processor will warm up more because of the lack of restrictions;
• 📵 Background apps (such as Telegram or Gmail) will sync more often, consuming traffic and charge;
• ⚡ Charging can become unstable (for example, the phone will turn off at 1-2% instead of a smooth transition to saving mode).

⚠️ On some Xiaomi models, for example, POCO F5 or Redmi K60) Removing Battery Performance causes fastboot to crash, making it impossible to run through the Mi Flash Tool without completely resetting.

How to safely reduce the impact of Battery Performance on performance

If you're annoyed that Battery Performance is consuming resources or disrupting applications, don't rush to remove it. Instead, you can fine-tune it through hidden MIUI menus. Here are some proven ways:

Disable restrictions for individual applications |Configure adaptive charging |Enable performance mode |Reset service cache-->

1. Exclude applications from optimization

If an application (such as a navigator or messenger) is constantly “slept” by the system, add it to the white list:

1. Go to Settings → Applications → Application Management;
2. Select the application you want (such as Google Maps).
3. Press Battery Limitations → No restrictions;
4. Also turn off Auto Start and Background Activity if they interfere.

2. Set up adaptive charging

In newer versions of MIUI 14/15, you can manually configure how Battery Performance manages charging:

1. Open Settings → Battery and Performance → Battery settings;
2. Choose Adaptive Charging;
3. Set a charge limit (e.g. 80% to extend battery life).

3. Enable performance mode

If you need maximum power (for example, for gaming), activate the performance mode:

1. Go to Settings → Battery and Performance → Modes;
2. Choose Performance (instead of Balanced or Charge Saving)
3. This will disable some of the Battery Performance limitations, but will increase battery consumption.

⚠️ On Xiaomi models with Snapdragon 8 Gen 2 processors (for example, Xiaomi) 13T Pro) forced battery optimisation shutdown can lead to thermal throttling, an automatic performance decline due to overheating.

Alternative ways to manage energy consumption

If you want to get rid of the impact of Battery Performance, but are not willing to risk the stability of the system, consider alternative optimization methods:

• 🔄 Use third-party utilities like AccuBattery or GSam Battery Monitor to monitor your flow;
• ⚡ Disable unnecessary Google services (e.g. Google Play Services for unused apps);
• 📵 Set up network restrictions – disable background traffic for applications through Settings → SIM cards and mobile networks → Transfer of data;
• 🔋 Calibrate the battery (every 2-3 months to completely discharge and charge the smartphone to 100%).

One of the most effective ways is to disable automatic MIUI optimization via ADB (no root rights):

adb shell dumpsys deviceidle force-idle

This command temporarily suspends the aggressive energy saving, but does not remove the Battery Performance completely.

Xiaomi models where Battery Performance is critical to work

On some Xiaomi devices, Battery Performance is more integrated than on others, such as wireless charging flagships (such as the Xiaomi 13 Pro or Mix Fold 3) and is responsible for:

• 🔌 Temperature control during wireless charging (prevents overheating of the coil);
• ⚡ Optimization of fast charging (for example, 120W HyperCharge);
• 📊 Distribution of energy between two batteries (in dual-battery models such as Black Shark 5 Pro).

On budget models (such as the Redmi 12C or POCO M6 Pro), the service is less critical and can be shut down without serious consequences, but even here it is responsible for basic optimization, such as:

• 🔋 Turning off vibration at low charge;
• 📵 Limiting background synchronization with 5% battery;
• ⚠️ Warning of critical charge level (1-2%).

If you are using a smartphone with AMOLED-screen (e.g. Xiaomi) 12T or Redmi K50), Battery Performance also controls adaptive brightness and refresh rates (e.g., automatically reduces the screen). FPS from 120 Hz to 60 Hz at low charge).

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On devices with MediaTek processors (such as the Redmi Note 12 or POCO X5), removing Battery Performance can cause Dynamic RAM Expansion, a technology that uses a portion of memory to speed up multitasking, to crash.

Myths and Misconceptions About Battery Performance

There are a lot of myths around this service. Let's take a look at the most popular ones.

1. Myth 1: Battery Performance is spying on the user. Reality: This process doesn't transfer data to the network — it works locally and only interacts with the Android kernel. The only data it collects is battery usage statistics (available to you in Settings → Battery).
2. Myth 2: "If you remove Battery Performance, the phone will run faster." Reality: On the contrary, without optimization, the processor will overheat more often, causing thermal throttling. In games, this will manifest itself in the form of friezes and FPS drops.
3. Myth 3: "This service can be disabled through Settings → Applications." Reality: There is no button in the standard MIUI interface to disable Battery Performance, as it is a system process. The only way is to use ADB or root.
4. Myth 4: Battery Performance is to blame for the battery's quick discharge. Reality: The service itself consumes minimal energy (usually 0.1-0.3% per day). If the battery goes down quickly, the problem is more likely to be apps or a worn-out battery.

Another common misconception is that Battery Performance and MIUI Optimization perform the same function.

• Battery Performance is responsible for energy saving at the core level.
• MIUI Optimization manages the interface and animations.

FAQ: Frequent questions about Battery Performance in Xiaomi