How to charge a new Xiaomi phone for the first time: myths and facts

You’ve just unpacked Xiaomi’s new smartphone — whether it’s the flagship Xiaomi 14 Ultra, the budget Redmi Note 13 or the gaming Black Shark 6. The glossy body shines in your hands, the screen shines with crystal clarity, and the question in your head is: how to charge your phone the first time so that the battery lasts as long as possible? The Internet is full of conflicting tips — from “discharge to 0%” to “charge exactly 8 hours.” We analyzed Xiaomi’s official recommendations, research on lithium polymer batteries and the experience of service centers to give you accurate instructions for 2020-20 years.

Spoiler: Most of the popular first-charging tips are a relic of the nickel-cadmium era. Xiaomi smartphones today are equipped with lithium polymer batteries that don’t require “training” or hours of charging. However, there are critical nuances that you ignore that will reduce battery life by 20 to 30 percent in the first months.

Why the first charge is more important than the rest

Lithium polymer batteries (Li-Po) installed at Xiaomi don’t have a memory effect — they don’t need to get used to the charging cycle. However, the first 3-5 cycles shape the electrode structure and affect battery life. Battery University research (2023) shows that a wrong first charge can:

• 🔋 Reduce battery capacity by 5-10% after 6 months
• ⚡ Increase the internal resistance of the battery, which will lead to slower charging
• 🔥 Increase the risk of overheating with heavy use

Key point: in Xiaomi’s new battery, lithium ions have not yet stabilized, and if you charge your phone too fast for the first time (for example, through a powerful 120W adapter) or interrupt the process by 50%, it will disrupt the even distribution of ions, the consequences being uneven wear and lifespan of the cells.

⚠️ Warning: If your Xiaomi came from a factory with a charge of 30-50% (typical for new devices), do not discharge it to 0% before first charging. This is a myth that is fatal for Li-Po batteries. The optimal range for the first cycle is from 20% to 80%.

Xiaomi’s official instructions: what the manufacturer says

The user guides for Xiaomi 13T, Redmi Note 12 Pro+ and other current smartphones include a section on battery, with three key recommendations for first charging:

1. Use the original adapter. Even if your POCO F5 supports 67W charging, the 33W adapter may come with the package, it's not a mistake. It's best to do the first charge with native RAM.
2. Charge at room temperature. The optimal range is 10-35°C. Charging in the cold (below 5°C) or in the heat (above 40°C) damages the battery.
3. If you start charging, wait 100% (but don’t leave it on overnight!).

Interesting fact: the manual for Xiaomi 14 has a note that the first 3 cycles are better spent in a “sparing” mode – without games, video editing or other loading tasks.

Next articleHow to Charge Xiaomi for the First Time

Follow this algorithm to properly prepare the battery for long-term use. The instructions are universal for all models Xiaomi, Redmi, POCO and Black Shark 2020-2026:

1. Check the starting charge. Turn on your phone and see the battery percentage in the status bar. If the charge is ≤ 20%, you can immediately charge. If ≥50%, use the phone for 1-2 hours until the charge drops to 20-30%.
2. Connect the original adapter. Even if you have a more powerful RAM (for example, 120W for Xiaomi 13 Ultra), the first charge is better done with the “native” adapter from the kit. This is due to the fact that the power controller in the new Xiaomi smartphones is calibrated to the normal power.
3. Charge without loading. Don't play games, shoot 4K videos, or update apps on your first charge. The best way to do that is to leave your phone on standby or with your screen off.
4. Wait 100 percent and turn it off. When the light goes 100 percent, disconnect the cable immediately. Don't leave it on just in case, which causes micro-recharging, which is harmful to the new battery.

After the first charge, complete the full discharge-charging cycle (100 to 0% and back to 100%) for the first 3 to 5 days of use, which will help the power controller calibrate the battery capacity more accurately.

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If your Xiaomi supports wireless charging (such as the Xiaomi 13 or Mix Fold 3), the first charge is better done via cable.

Common Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes that shorten the life of the battery. TOP-5 Misconceptions about Xiaomi’s first charge and their consequences:

• 🔌 "You have to charge 8-12 hours. This was true for nickel cadmium batteries 20 years ago. Modern Xiaomi automatically shuts down power at 100%, and you can't recharge. It's pointless to charge for 2-3 hours longer.
• 🔋 "First discharge to 0%. Deep discharge (below 3%) damages Li-Po batteries. Optimal range for first charge is 20 to 100%.
• ⚡ "Use the most powerful RAM. Charge Redmi Note 12 adapter 120W staff-up 33W speed up the process, but increase the heating of the battery, which is harmful to its life.
• 📱 "Charge with the phone on. Background processes (updates, synchronization) load the processor, which increases the battery temperature.
• 🔄 "Repeat battery training every month. It's a myth. Modern batteries don't need regular calibration. It takes one full cycle every 3 months.

⚠️ Note: If after the first charge, the Xiaomi phone discharges too quickly (for example, the phone is not fully charged, POCO X5 Pro holds charge for less than 8 hours, check settings in Settings → Battery → Battery use: It may be the fault of sloppy battery handling and the background activity of apps (like Mi Video or GetApps).

What to do after the first charge: battery care

The first charge is just the beginning. To Xiaomi battery last 3-4 years without noticeable degradation, follow these rules:

• 🔄 Avoid extreme charge levels: The optimal range for everyday use is 30-80%, regular discharges to 0% or charging up to 100% reduce battery life.
• 🌡️ Control the temperature if the phone is over 40.°C (for example, after playing Genshin Impact), let it cool before charging. CPU Monitor for temperature monitoring.
• 🔌 Use quality cables. Cheap cables without certification. USB-IF can cause voltage surges harmful to the power controller.
• 📵 Turn off fast charging at night. If you leave your phone to charge overnight, turn on Charging Limit mode in battery settings (available on Xiaomi) 12/13/14 series).

Modern Xiaomi smartphones are equipped with Adaptive Charging, which analyzes your habits and optimizes the process. For example, if you normally charge your phone at night, the system will keep the charge up to 80% until the morning, and then bring it to 100% by your wakeup.

1. Go to Settings. → Battery.
2. Select Additional settings → Adaptive charging.
3. Activate the switch and set up the schedule.

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Adaptive charging can increase battery life by 20-25% by reducing battery life by 100%.

Features for different Xiaomi models

While the general principles of first charging are the same, some Xiaomi models have nuances due to the unique battery technology.

If you have a model with a graphene battery (for example, the experimental versions of Xiaomi 11T Pro), the first charge should be carried out only with the original adapter - such batteries are sensitive to voltage surges.

How to check the health of the battery after the first charge

To make sure that the first charge went correctly, check the status of the battery after 3-5 cycles.

1. Use the built-in diagnostics: Settings → Battery → Battery status. If the capacity is ≥98%, it's okay.
2. Install the AccuBattery app (available on Google Play) and it will show: Real battery capacity (in mAh). Discharge rate. Charging temperature.

For example, the Xiaomi 13 Lite with a new battery should keep the charge in standby mode for at least 2 days.

If the battery capacity in AccuBattery is <95% after 5 cycles, this may indicate:

• 🔌 Poor-quality adapter or cable.
• 🔥 Overheating during the first charge.
• 📦 Battery defects (rarely, but sometimes).

⚠️ If after the first charge, the Xiaomi phone began to warm up a lot (above 45)°C) or discharge quickly (more than 1% per minute in downtime), contact the service center.

FAQ: Frequent questions about Xiaomi's first charge