How to increase the call time on the Xiaomi phone: from settings to upgrade iron

Have you noticed that conversations on your Xiaomi are interrupted by fast discharge or bad signal? Call time is not only autonomy, but also connection stability. In this article, we will discuss 7 working methods to increase the duration of conversations, from software settings to hardware improvements.

The problem can be in many ways: weak network signal, energy-intensive process phonemes, or a worn-out battery. For example, Redmi Note 12 Pro+ and POCO F5 smartphones often suffer from overheating on long calls, which reduces the time of operation. And Xiaomi 13T models can lose communication due to suboptimal 4G/5G settings. We analyzed user feedback and technical data to collect relevant solutions.

Importantly, some methods require developer rights or physical intervention, and if you're not sure about your skills, go to a service center, and let's start with the simplest ways that don't require disassembling the phone.

1. Optimization of network settings for stable signal

The quality of the connection directly affects call times: a weak signal causes the phone to spend more energy maintaining the connection.

• 📶 Choose the optimal network type. Go to Settings → SIM-maps and mobile networks → Network type: Most regions of Russia have optimal mode 4G (preferably or only 4G. Regime. 5G (If supported, it can put the battery down faster.
• 🔄 Turn off automatic network search. In the same menu, deactivate Auto Network Select and manually select an operator (e.g. MTS, Beeline) to reduce background activity of the communication module.
• 📡 Check coverage areas. Use operator coverage cards (like RootMetrics).If you make frequent calls in places with poor signal, consider buying a repeater.

For Xiaomi models 12S Ultra and newer dual function available SIM-map 5G, But activating it can shorten the time you're working on, unless you need to take two calls at the same time. SIM, Turn off this option in Settings → SIM-map → Double. SIM 5G.

⚠️ Note: Change the network type to 3G It can increase call times by 15 to 20 percent, but it can reduce Internet speeds.

2. Power saving settings for calls

Xiaomi smartphones have an aggressive battery optimization system that sometimes limits background processes, including the communication module.

1. Open Settings → Battery and Performance → Battery Mode
2. Choose Balanced or Performance (but not Energy Saving) profile.
3. Go to Settings → Applications → Application Management → Phone and turn off the option to limit background activity.

For models with MIUI 14+, a hidden Call Optimization setting is available to activate:

Enter the phone code ##4636##


Go to the tab "Battery Information"




Click on the three dots in the upper right corner and select "Call Optimization"

This option reduces energy consumption during conversations by limiting background tasks, and on the POCO X5 Pro, this feature increased call times from 5 hours to 7 hours when used actively.

Check the current battery profile

Disable restrictions for the "Phone" application

Activate hidden call optimization (if available)

Reboot your phone after the changes-->

3. Checking and replacement of the battery

If your Xiaomi is over 2 years old, the problem may be a degraded battery.

• 🔋 Through the Settings menu → Battery → Battery status (available on the MIUI 13+). If the capacity is below 80%, a replacement is required.
• 📊 Using the AccuBattery app (shows real wear and discharge rate during calls).

To replace the battery, contact the official Xiaomi service or a trusted repair center.The cost of the original battery for the Redmi Note 11 is about 1,500 ₽, for flagships (Xiaomi 13) – up to 3,000 ₽. Don’t buy cheap ones: they can swell or lose capacity quickly.

⚠️ Warning: After replacing the battery, be sure to calibrate: fully discharge the phone, then charge to 100% without interruption.This will increase the accuracy of the display charge and prolong the life of the new battery.

4. Update firmware and reset network settings

The manufacturer regularly releases updates that correct communication errors.

1. Go to Settings → About the phone → System update.
2. If a new version of MIUI is available, install it, especially for Redmi Note 9 and older models that have had problems with the VoLTE module.

If after updating the problems remain, reset the network settings:

Settings → SIM-cards and mobile networks → Resetting mobile network settings


Confirm the action and restart the phone

This will remove stored Wi-Fi networks and connectivity settings, but often solves problems with call interruptions or bad signal. On Xiaomi 11T Pro, this method increased communication stability by 30% (according to GSMArena tests).

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Before resetting network settings, save Wi-Fi passwords to a notebook or take screenshots QR-router codes (they are usually pasted on the back of the router codes).

5. Use of headphones and hands-free

Few people know, but the speaker of the phone during a conversation consumes up to 15% of the battery power.

• 🎧 Wired headphones (with a connector of 3.5 mm or USB-C). They reduce the load on the processor, because they don't require processing sound through the speaker. POCO F4 This increases the call time to 25%.
• 🔊 Speaking. It's on with a button when you call. It's down to people listening to you.
• 📱 Bluetooth headphones: higher power consumption than wired ones, but lower than the speaker; Xiaomi Buds 4 Pro with support LC3 (low-energy).

Tests showed that when using wired headphones, the Redmi Note 10 Pro lasts 1.5 hours longer than when talking through a speaker, but Bluetooth reduces time by 10-15% compared to wired connection.

6. Disabling background processes and widgets

Many applications continue to run during calls, consuming processor and power, to avoid this:

• 🚫 Close all apps before calling (swipe up in the multitasking menu).
• 📱 Turn off widgets on the home screen (especially weather, news, or social media) and update in the background.
• 🔄 Activate the "Do Not Disturb" mode (Settings) → Sounds and vibrations → Don't disturb) with permission only for calls. This blocks notifications that "wake up" the processor.

MIUI has a hidden feature called Ultraeconomic Mode, which shuts down all background processes, to enable it:

Settings → Battery → Battery Mode → Ultra-Economic


Select "Only Calls" in the mode settings

This mode increases call times by 40 to 50 percent, but shuts down the Internet and most functions, and is suitable for emergency situations where you need to extend a conversation at low charge.

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Background processes can reduce call times by 20 to 30 percent, and even closed applications (like VK or Telegram) sometimes trigger sync services during a conversation.

7. Hardware improvements: antenna and cooling

If the software methods didn’t help, the problem could be in the hardware:

• 📶 Signal amplification for models with removable back cover (Redmi) 9A) can be installed LTE-antenna with AliExpress (cost) ~500 ₽). It is attached under the lid and connects to the contacts of the main antenna.
• ❄️ Cooling. Overheating reduces your running time. Use the Xiaomi Cooling Pad or homemade radiator (a copper plate glued to the processor).
• 🔧 Replace the network module. If the phone loses the network often, the module may be damaged. RF (It costs 2,000 to 4,000 to replace it in the service. ₽.

Use the application to check the temperature AIDA64. If the processor is heated above 60°C during the call – dust cleaning or heat paste replacement is required (relevant for the use of a heat source) POCO X3 Pro and other models with active cooling).

⚠️ Warning: Self-disassembly of the phone is not warranty. If your Xiaomi is warranty, contact the service center with a complaint about "quick discharge during calls" - they are obliged to conduct a diagnosis for free.

FAQ: Frequent questions about call times on Xiaomi