You just unpacked Xiaomi's new smartphone, which is shiny, fast and promises to last a long time, but before you start using it, the question is, how do you charge it for the first time so that the battery lasts as long as possible? There are dozens of controversial tips online, from "required to discharge to 0%" to "charge should last exactly 12 hours." We've figured out Xiaomi's official guidelines, studied the technical features of lithium-ion batteries, and prepared a current guide to help avoid common mistakes.
First, modern Xiaomi smartphones (including models 2023-2026 based on MIUI 14/15) do not require the battery to be pumped with multiple discharge-charging cycles - this is a relic of the era of nickel-metal hydride batteries. Second, the first charge is not different from the next ones in essence, but there are nuances that should be considered to optimize battery performance in the long term. In this article, we will explain what is really important to do when you first connect to the network, what MIUI settings will help to extend the battery life, and why some tips can reduce its resource.
Why the first charge raises so many questions: the technical context
All Xiaomi smartphones (from the low-end Redmi Note to the flagship Xiaomi 14 Ultra) are equipped with lithium-ion or lithium-polymer (Li-Po) batteries. These types of batteries do not have the “memory effect” that required complete discharge of old batteries.
- 🔋 High temperature sensitivity: Overheating above 40°C accelerates battery degradation.
- ⚡ Optimal charge range: Long-term operation at 100% or 0% reduces the number of cycles.
- 📉 Natural degradation: Even under ideal conditions, the capacity decreases by ~20% after 500 complete cycles.
Xiaomi and Qualcomm (whose chips are used in most of the brand’s devices) have unanimously stated that the first charge does not require special manipulation. However, some models (such as the Xiaomi 13T Pro or POCO F5) recommend fully charge the device before first use, this is not due to “pumping” the battery, but to calibrating the power controller that controls the display of the charge level.
It’s important to understand that the power controller (the charger chip) in Xiaomi’s new smartphones is already calibrated in the factory. However, if you store it for a long time (especially if the device has been in storage for several months), there may be a slight discrepancy between the actual and displayed charge levels.
Xiaomi’s official instructions: what the manufacturer says
In the user guides for most Xiaomi models (available on the official support website), the section on first charging is very concise, for example, for Xiaomi 12 Pro it is indicated:
"Before first use, fully charge the battery. Use the original charging adapter and cable for safety and optimal performance."
More detailed recommendations can be found in the documentation for flagship models such as Xiaomi MIX Fold 3 or Black Shark 5 Pro.
- 🔌 Use of an original charger (included or certified by Xiaomi).
- 📱 Avoid heavy use (games, video editing) during the first charge.
- 🌡️ Charging at room temperature (optimally 20-25°C).
Interestingly, the instructions for the budget lines (Redmi A2, POCO M6 Pro) emphasize safety: warn about the risks of using uncertified chargers and recommend avoid charging in high humidity conditions. This is due to the fact that budget models are often bought in regions with extreme climates, where temperature and humidity changes can affect the battery.
Use the original cable and adapter from the kit |
Make sure the temperature of the device is 15–30°C|
Disable background apps (especially games)|
Do not cover your smartphone while charging |
Connect to the socket, not to the USB- port of the computer-->
Next articleHow to Charge a New Xiaomi for the First Time
Based on the official recommendations and specifications of the batteries, we have compiled the optimal algorithm for first charging, which is suitable for all modern Xiaomi smartphones, including:
- 📱 Xiaomi 14 / 14 Pro / 14 Ultra
- 📱 Redmi Note 13 Pro+ / Note 12 Turbo
- 📱 POCO F6 Pro / X6 Pro
- 📱 Black Shark 6 / 6 Pro
Follow these steps:
- Unpack your smartphone and check the kit. Make sure the original cable (usually USB-C — USB-C or USB-C — USB-A) and the power adapter labeled Xiaomi or MDY (manufacturer for Xiaomi) are in the box. The adapter must indicate the power corresponding to the model (e.g., 33W, 67W, 120W).
- Connect your smartphone to the network. Use an outlet, not a USB- port of your computer or power bank. This will provide stable voltage. If your model supports fast charging (Quick Charge, Turbo Charge or HyperCharge), you can use it - it will not harm the battery on the first charge.
- Wait for 100% charge. Don't interrupt the process even if the smartphone is 90 to 95 percent "almost full," and at this point, the power controller is balancing the battery cells, which is important for accurately mapping the future charge level.
- Turn off the charger. Once you reach 100%, let the smartphone stand on charge for another 10 to 15 minutes, which is the time it takes to complete the calibration. Then disconnect the cable.
- Use your smartphone as normal. You don't have to discharge it to 0% right away. Instead, try to keep your charge level in the range of 20-80% in the early days, which is optimal for lithium-ion batteries.
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If your smartphone supports wireless charging (such as the Xiaomi 13 Pro or Xiaomi MIX 4), the first charge is better done via cable.
Important: If the smartphone is discharged quickly after the first charge (for example, the Redmi Note 12 loses 20% per hour in standby mode), this may be due to:
- 🔄 Application background activity (check in Settings → Battery → Battery usage).
- 📱 By updating the system (after first turning on MIUI can download updates in the background).
- 🌡️ Battery adaptation (in the first 2-3 charge-discharge cycles, the controller gets used to your use style).
What You Should Not Do When You First Charge (and Why)
Some of the “advice” from the old forums is not only useless, but also harmful to modern Xiaomi smartphones.
| Myth | Reality. | Effects of consequences |
|---|---|---|
| "You need to discharge to 0%, then charge to 100% 3 times in a row" | This is true for 2000s nickel-cadmium batteries. Li-ion is bad for you. | Deep discharge to 0% creates stress for the battery, reducing its life. |
| The first charge should last 12 hours. | Modern smartphones charge in 1-2 hours, and prolonged charging leads to overheating. | Overheating above 40°C accelerates battery degradation by 30-40%. |
| You can’t use your smartphone during the first charge. | You can, but not for resource-intensive tasks (games, video) and easy use won't hurt. | Intense load + charging = increased heat generation. |
| “You have to calibrate the battery, completely discharge it once a month.” | In MIUI, calibration is automatic. Forced discharge only hurts. | Each deep discharge cycle reduces the service life by 1-2%. |
⚠️ Warning: If you bought a Xiaomi smartphone “hands-on” or it was in stock for more than a year, its battery could degrade even without use.In this case, the first charge may show an inaccurate charge level.
Another common question is, can you use chargers from other brands? Technically, if they are certified to USB-IF or Quick Charge standards. However, Xiaomi adapters use proprietary charging protocols (such as MI Fast Charge), which may not be supported by third-party RAM. This will not damage the battery, but charging will be slower.
How to reset the power controller on Xiaomi?
MIUI settings to extend battery life
To make your Xiaomi battery last longer, we recommend setting up a few settings in MIUI. These options are available on most devices starting with MIUI 12:
- 🔄 Optimized charging (Settings → Battery → Battery settings → Optimized charging): Limits the charge to 80% at night, refilling to 100% before you wake up. This reduces battery wear.
- 📵 Power saving mode (Settings → Battery → Power saving mode): Activate it at a charge level below 20% to reduce load.
- 🔌 Fast charging off (for HyperCharge models): If you are in no hurry, charging on 18W instead of 120W reduces heating.
- 🌙 Dark Theme and AOD: Turn on the dark theme (Settings → Screen → Dark theme) and turn off Always-On Display if you don't need it.
On smartphones with MIUI 14/15, the Super Power Saving feature (Settings → Battery → Super Power Saving) is introduced, which turns off the background activity of applications and limits performance, but can extend the life of 1.5-2 times at a critical charge level, but it is not recommended to use it constantly, it can lead to freezes in resource-intensive applications.
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Optimal charging mode for battery durability: Keep your charge level in the range of 30-80%, avoid overheating and use original accessories.
For owners of gaming smartphones Black Shark or POCO F, it is useful to know about the Battery Game Mode feature (Settings → Special features → Battery Game Mode). It temporarily turns off background processes during games, which reduces heating and charge consumption. However, after activating this mode, it is recommended to give the smartphone a “rest” 10-15 minutes after heavy use.
Frequent problems after the first charge and their solution
Even if you did everything right, after the first charge, you can have problems.
⚠️ Warning: If after the first charge, the Xiaomi smartphone does not turn on or shows 0% despite being connected to the charger for hours, this may indicate a malfunction of the power controller or factory defect. In this case, you should contact the Xiaomi service center - self-repair will lead to loss of warranty.
| Problem. | Possible cause | Decision |
|---|---|---|
| Smartphone discharges quickly (20-30% per hour in standby mode) | Application background activity, MIUI update, uncalibrated battery | Check Settings → Battery → Battery Use, Reset Statistics (see spoiler above) |
| Charging is too slow (for example, 1% in 10 minutes) | Uses a non-original cable/adapter, power saving mode is enabled | Try another cable or turn off the power saving in the settings |
| The smartphone heats up during charging (>40°C) | Intensive use (games, videos), fast charging, high ambient temperature | Turn off apps, lower screen brightness, remove the case, charge in a cool place |
| The level of charge "jumps" (for example, from 50% to 30%) | Uncalibrated power controller, long-term storage in warehouse | Perform the full discharge-charging cycle (0–100%) 1-2 times |
If your Xiaomi smartphone supports reverse wireless charging (such as the Xiaomi 13 Pro or Xiaomi MIX Fold 2), avoid using it in the early days. This feature generates additional heat, which is undesirable for a new battery. The same applies to charging from power bank – it is better to use the socket for stable voltage.
For removable battery models (like the old Redmi 4A or Redmi 5), the rules are slightly different: after the first charge, it is recommended to remove the battery for 30 seconds, then insert it back in. This helps improve contact. However, in modern Xiaomi smartphones, the batteries are not removable, and this recommendation is not relevant.
Additional Tips for Maximum Battery Life
To ensure that your Xiaomi battery lasts 3-4 years without noticeable degradation, follow these recommendations:
- 🔋 Avoid extreme charge levels: try to keep the battery in the range of 30-80%.Constant charging to 100% and discharging to 0% reduces the lifespan.
- 🌡️ Control your temperature: Do not leave your smartphone in the sun, in your car in the summer, or near heat sources. The optimum operating temperature is 10-35°C.
- ⚡ Use original accessories: cheap cables and adapters can not only slow charging, but also damage the power controller.
- 📵 Turn off unnecessary functions: 5G, NFC, Bluetooth and GPS in the background consume charge. Turn them on only when necessary.
- 🔄 Update: Newer versions of MIUI often optimize power consumption. Check for updates in Settings → About Phone → System Update.
For smartphones with support for fast charging (for example, Xiaomi 12T Pro with 120W HyperCharge) there is a nuance: when using intensively (games, video shooting), it is better to turn off ultra-fast charging and switch to the standard 18W-33W. This will reduce heating. You can do this in the battery settings or through the engineering menu (code # #6484# on some models).
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If you travel frequently, make it a rule: for long-term storage (for example, in an airplane), turn off a smartphone with a charge level of ~50%, which is the optimal level for minimizing degradation when downtime.
For owners of smartphones with large screens (Xiaomi MIX Fold 3, Xiaomi Pad 6), it is important to monitor the brightness and refresh rate. For example, 120 Hz + maximum brightness can increase charge consumption by 30-40%. In screen settings (Settings → Screen), you can limit the frequency to 60 Hz or turn on an adaptive frequency that automatically reduces it for simple tasks.