The first charge of the new Xiaomi: how to properly charge your smartphone so that the battery lasts longer

You just unpacked Xiaomi’s new smartphone — whether it’s the flagship Mi 14 Ultra, the budget Redmi Note 13, or the gaming POCO F6. The first thing to do after turning on is to properly charge the battery. It depends on how long the battery will hold charge in the future. But there are many myths surrounding the first charge: some people advise you to keep the phone charging for 12 hours, others say you need to discharge to 0%, and still others claim that modern lithium polymer batteries do not require any “training”.

In this article, we will learn how to really charge the new Xiaomi, based on the official recommendations of the manufacturer and the specifications of the batteries, you will learn how long it takes the first charge, whether to use the original power supply, how to avoid overheating and what to do if the smartphone does not charge.

Why First Charge Is Important: Myths and Reality

Many users believe that the new battery requires “rock-up” — several cycles of full discharge and charging to 100%. This advice is relevant for older nickel-cadmium batteries, but modern Xiaomi smartphones are equipped with lithium-polymer (Li-Po) batteries that do not need such a procedure. Moreover, a complete discharge to 0% can even harm: deep discharge reduces the battery capacity and accelerates its degradation.

However, this does not mean that the first charge can be ignored, and manufacturers (including Xiaomi) recommend:

• 🔋 Charge your smartphone to 100% on first turn on, even if it is already partially charged from the factory.
• ⏱️ Do not leave the device on charge for longer than 2-3 hours after reaching 100% (overcharging is harmful).
• 🌡️ Avoid overheating – do not use your phone while charging and do not put it on soft surfaces (pillows, blankets).
• 📱 For models with support for fast charging (for example, Xiaomi 14 Pro with a high-speed charger). 120W) First 2-3 cycles are better to charge at standard power.

It is important to understand that Xiaomi’s lithium polymer batteries have a charge controller that automatically limits voltage and current, preventing overcharging. However, this does not eliminate the need to monitor temperature and avoid extreme conditions (for example, charging in the cold or in direct sunlight).

Next articleHow to Charge a New Xiaomi for the First Time

The first charge takes 1 to 3 hours depending on the model and power of the power supply.

1. Connect the original cable and power supply. if you have a more powerful charger (for example, from a laptop), it is better to use a complete adapter for the first charge. This is due to the fact that the non-original units can supply unstable voltage, which will affect the calibration of the battery controller.
2. Turn on your smartphone and wait for the system to boot. If the phone is dead before it turns off, wait 5-10 minutes until the charge indicator appears on the screen, and then turn it on.
3. Charge to 100% without interruption. Don't turn off the cable even if the phone is already showing 90 to 95 percent. Wait for the indicator to fill up completely.
4. Turn off charging 15 to 30 minutes after reaching 100%, so that the battery controller accurately calibrates the charge level.

Use the original cable and power supply

Make sure the USB connector is not contaminated

Connect the charging to the socket, not to USB-port

Do not use your phone while charging

Turn off fast charging (if there is an option in the settings)-->

For models that support wireless charging (such as the Xiaomi 13 Ultra or Mi Mix 4), the rules are the same, but it is important to use a certified wireless station with a power not higher than 50W (unless otherwise specified in the instructions).

⚠️ Warning: If the phone does not respond after connecting the charger (the indicator does not burn, no charging is underway), check the cable for damage or try another power supply. Perhaps the problem is in the factory battery defect - in this case, contact the Xiaomi service center during the warranty period.

How long should the first charge last?

The charging time depends on three factors:

• 📱 Smartphone model and battery capacity (e.g. Redmi Note 13 Pro)+ 5000 mAh will charge longer than POCO X6 4500 mAh).
• ⚡ Power supply: standard adapter for 18W charge the phone in 1.5-2 hours, and 120W (Xiaomi 14 Pro – in 15-20 minutes.
• 🔌 Type of charging: wired is always faster than wireless (for example, 30W vs 50W same-model).

Please note: Charging time may increase if:

• 🔥 The phone overheats (for example, due to simultaneous charging and playing).
• 📶 Uses a non-original cable with high resistance.
• 🔄 Optimized charging is enabled (we will talk about it below).

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If your Xiaomi supports ultrafast charging (120W+), the first 2-3 cycles are better charged at 30–60W. This will reduce battery heating and prolong its life.

Should I reduce the new Xiaomi to 0%?

No, and here's why:

• 📉 Deep discharge (below 3%) is harmful to lithium polymer batteries, which leads to irreversible loss of capacity and can disable the battery.
• 🔄 Modern Xiaomi smartphones automatically turn off at charge level ~1–2% to prevent critical discharge.
• 🔋 The battery controller is calibrated not by discharging, but by full charging cycles (20% to 80-100%).

But there's one exception: if you buy a used smartphone or it's been in storage for a long time, the battery could run out of power.

1. Connect your phone to charge and wait 10-15 minutes, even if it doesn’t respond.
2. If the indicator doesn’t light up, try another cable or power supply.
3. If the phone doesn’t turn on after 30 minutes of charging, it’s possible that the battery is completely discharged and requires “resuscitation” at the service center.

⚠️ Warning: If you see a message saying "Battery is dead. Connect charger" but the phone is not charging, do not try to turn it on forcefully (for example, by pressing buttons.

How to set the optimal charging mode in MIUI

Xiaomi has added several features to MIUI firmware that help extend battery life, and should be enabled immediately after the first charge:

1. Optimized charging (Settings → Battery → Optimized charging) This feature limits charging to 80–90% if the phone is connected to the network for a long time (for example, at night).This reduces the load on the battery, as constant maintenance 100% accelerates its degradation. How does optimized charging work? The algorithm analyzes your habits (for example, what time you normally turn your phone off from charging) and automatically brings the charge to 100% by that time. If you go to bed at 23:00 and wake up at 7:00, the smartphone will hold the charge by 80% to 6:30, and then quickly charge to 100%.
2. Power saving mode (Settings → Battery → Power saving mode) Limits the background activity of applications and reduces the CPU clock speed, which reduces heating and charge consumption. It is useful to turn on if you notice that the battery is fast running down.
3. Disabling fast charging (Settings) → Battery → Fast charging) For models with support for ultra-fast charging (67W, 120W, 200W) You can manually limit power to 18–30W. This will reduce battery heating and extend its life.

MIUI also has a hidden battery calibration function that helps to reset the charge controller errors, to activate it:

1. Go to Settings → About the phone.


2.Tap 5 times on the MIUI version to enable Developer Mode.




3. Go back to Settings → Additional → For developers.




4. Find the Battery Calibration item and select Reset Statistics.

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Optimized charging and energy saving mode are two of the most effective tools for extending battery life in Xiaomi smartphones.

Frequent errors in the first charge and how to avoid them

Even experienced users sometimes make mistakes that shorten battery life.

• 🔌 Use of unoriginal cables or power supplies, cheap cables may not meet standards USB-PD Or a quick charge, which causes the voltage to be unstable, which causes the battery to overheat and degrade rapidly.
• 🌡️ Charging at extreme temperatures. Optimal temperature for charging — 10–35°If the phone is cold (for example, brought from the street in winter), wait. 10–15 It's a minute until it's warmed to room temperature (<5°C) may damage the battery.
• 📱 Using your phone while charging, playing games, video or other loading tasks raise the temperature of the processor that is transmitted to the battery, which is especially critical for fast-charging models (67W+).
• ⏳ Long-term storage with full charge (100%). If you buy Xiaomi "pro stock" and plan not to use it for several months, charge the battery to 40-60% and turn off. Full charge with long simple accelerates battery aging.

Another common problem is that it's falsely displaying the charge level, like the phone is 100 percent, but then it drops to 80 percent after 5 minutes, and it's due to a calibration error on the controller, to fix:

1. Completely discharge the phone before turning off.
2. Charge to 100% without interruption.
3. Repeat the cycle 2-3 times.

⚠️ Note: If after calibration the problem persists, it may indicate a malfunction of the battery or controller.In this case, contact the service center, especially if the phone is warranty.

How to extend the life of Xiaomi battery after the first charge

The first charge is just the beginning. To ensure that the battery lasts 2-3 years without noticeable loss of capacity, follow these rules:

• 🔋 Keep the charge in the range of 20-80%. Constant charging to 100% and discharging to 0% reduce battery life; Optimal recharge the phone when the charge drops to 20-30%, and disconnect from the network by 80-90%.
• 🔄 Avoid full discharge cycles. One full cycle (0)→100%) equivalent to wear ~0.1 to 0.2% capacity. If you recharge your phone a little bit, the battery will last longer.
• 🌡️ Watch the temperature. If the phone is heating above 40.°C (for example, while playing or charging), let it cool. High temperature is the main enemy of lithium polymer batteries.
• 📵 Disable unnecessary functions. NFC, Bluetooth, GPS and 5G In the background, they consume a charge. Turn them on only when necessary.
• 🔌 Use high-quality chargers. Xiaomi's original power supplies are certified and protected against power surges. Cheap analogues can damage the battery.

For models with ultra-fast charging (120W, 200W), the manufacturer recommends:

• Do not use maximum power all the time – only when it is really necessary (for example, before leaving the house).
• For long-term charging (for example, at night), turn off fast charging or use Optimized charging mode.

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If you often forget to turn your phone off from charging, buy a smart timer socket and set it to automatically shut down 1.5-2 hours after you connect.

FAQ: Answers to Frequent Questions About Charging the New Xiaomi