How to charge a new Xiaomi smartphone for the first time: instructions 2026

You just unpacked the new Xiaomi — whether it’s the flagship Xiaomi 14 Ultra or the budget Redmi Note 13 — and you were faced with the question: how to properly charge it for the first time? On the Internet, you can find dozens of conflicting tips, from “discharge to 0% and charge to 100% three times in a row” to “use only the original low-current cable.” We analyzed official Xiaomi recommendations, battery research from 2023-2026 and the experience of service centers to give an accurate answer.

Spoiler: Most of the popular first-charging methods are a relic of the nickel metal hydride (Ni-MH) era. Xiaomi smartphones today are equipped with Li-Po or Li-ion batteries that do not require “training.” However, there are nuances that affect battery durability. Next, a detailed analysis based on the specifics of MIUI firmware and the hardware features of Xiaomi devices.

Myths about the first charge: what actually harms the battery

Let’s start by debunking the popular misconceptions that still roam the forums:

• 🔋 «You need to fully discharge and charge 3 times" - is relevant for Ni-MH batteries (before the 2000s). For Li-Po, deep discharge (below 3%) is critical: each such cycle reduces capacity by 1-2%.
• ⚡ «First charging should be slow" - charging speed does not affect the "calibration" of the battery. - Xiaomi's modern controllers (e.g. Surge P1 in the flagships) automatically adjust the current.
• 📱 «You can not use your phone while charging" - the restriction is only valid for devices without a thermal control system. MIUI 12+ It is also protected against overheating (Smart Charge).
• 🔌 «Original cable is mandatory – it is not the cable brand that is important, but the Quick Charge protocol support (for Xiaomi — QC 3.0/4+ or PD). Fakes without certification could damage the port USB-C.

The most dangerous myth is that the first charge determines the life of the battery. In fact, battery degradation depends on a combination of factors: temperature, depth of discharge and the number of full cycles. One wrong first charge will not ruin the battery, but systematic violation of the rules is yes.

⚠️ Note: If you bought Xiaomi with your hands and the seller claimed that “the battery is new because I charged correctly,” check the real status through Settings. → Battery → Battery status: Full Charge Capacity below 90% of face value (e.g. 4500 mAh instead of 5000 mAh) indicates severe wear and tear.

Xiaomi’s official position: what the manufacturer says

Xiaomi’s user manuals (including the 2026 model) do not include a separate section on “first charge” and the manufacturer gives general battery life guidelines that apply to the new device:

1. Use the original adapter (or certified with Quick Charge support). Complete with the Xiaomi 13/14 series comes a 67W/120W charger - it has enough power.
2. Avoid extreme temperatures. The optimal range for charging is 10–35°C. At 0°C, the capacity temporarily drops by 20%, at 45°C, degradation accelerates.
3. Don’t keep your phone charging after 100%. MIUI has Optimized Charging (Settings → Battery → Battery Settings) that stops charging by 80% at night.

In 2023, Xiaomi published a study comparing batteries after a year of use under different charging scenarios.

The conclusion: Xiaomi doesn’t insist on a special first charge procedure, but it does recommend avoiding two things: overheating and a long stay of 100%.

Next articleHow to Charge Xiaomi for the First Time

The algorithm of the first charge is simple, but there are nuances for different Xiaomi models:

Turn on your smartphone and wait for the full MIUI load

Connect the original cable to the adapter (power not higher than specified in the specification)

Charge in a ventilated place (not in the sun or under the pillow)

Disconnect from the network when you reach 100% (do not leave on charging)

Check the temperature of the body - it should not exceed 35°C-->

Step 1: Unpacking and switching on

Take your smartphone out of the box, remove the protective films (if any) and turn it on. Wait for the MIUI to load fully, it will take 1-2 minutes. Note: some models (such as the Xiaomi 13T) come with a partial charge (~40%). This is normal: the battery should not be stored completely discharged.

Step 2: Connecting the charger

Use a complete cable and adapter. If you have a flagship model (Xiaomi 14 Pro, Mix Fold 3), the charger comes with 120W HyperCharge support. For budget series (Redmi Note 13, POCO X6) - 33W or 67W. Do not use adapters more powerful than the one indicated! For example, charging Xiaomi Redmi A2 (max 10W) with a 120W adapter can damage the power controller.

Step 3: The charging process

Charge the phone to 100%, but don't leave it charging after that. MIUI 14 has built-in protection: once it reaches 100%, the current automatically decreases to the minimum (~0.1A), but it's better to turn off the device. If you charge at night, activate the Optimized Charging feature (Settings → Battery → Battery settings → Optimized Charging). It will stop charging by 80% and wait for your wake-up to bring it to 100%.

Step 4: Temperature check

When charging, check the temperature of the case. Optimally - 25-35 ° C. If the phone is heated above 40 ° C:

• 🔥 Turn it off the grid and let it cool.
• 📵 Remove the case (if any) – it can block the heat sink.
• 🔌 Try another cable or adapter (possibly a faulty controller).

Step 5: Calibration (optional)

If the phone shows an inadequate percentage after the first charge (for example, it jumps from 100% to 80%), calibrate:

1. Reduce the phone to 0% (until it turns off).
2. Charge to 100% without interruption.
3. Disconnect from the network and restart (Settings → About Phone → Reboot).

This procedure synchronizes the data of the battery controller with MIUI. It should be repeated no more than 1 time every 3 months.

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If you bought Xiaomi from AliExpress or an unofficial seller, check the battery voltage through the engineering menu before first charging: dial ##4636## → Battery Information. Normal idling voltage is 3.7-4.2V. If the value is below 3.4V, the battery could be stored discharged and needs to be replaced.

Features for different Xiaomi models

The first charging process is the same for all Xiaomi smartphones, but there are models with specific nuances:

For models with graphene batteries (for example, Xiaomi 11T Pro) the first charge does not differ from the standard, but such batteries are less afraid of low temperatures (you can charge at 5-10 ° C).

If you have Xiaomi with Reverse Charging support, don’t use this feature in the first 3 days – let the battery get used to normal cycles.

What to do with the first (and subsequent) charge

The mistakes that users often make with new Xiaomi:

• 🔥 Use damaged cables -- bare wires can cause short circuits.
• ❄️ Charge in the cold - at 0°C and below lithium-ion batteries lose up to 30% of capacity temporarily and degrade faster.
• 🎮 Play heavy games while charging – Genshin Impact or Call of Duty Mobile load the processor, raising the battery temperature to 45-50°C.
• 🔄 Interrupt charging by 50-80% – if you start, bring it to 100% (but don’t leave it on charging afterward).
• 🛌 Charge under the pillow - the heat sink is blocked, the risk of overheating increases 3 times.

Critical error: using chargers from other brands without support for Xiaomi protocols.For example, Samsung's 25W adapter may mismatch voltage with Xiaomi's controller, resulting in:

• Slow charging (even if the adapter power is higher).
• Overheating of a USB-C cable or port.
• Failures in the Quick Charge function.

⚠️ Warning: If after the first charge the phone shows a message "Battery damaged" or "Use the original charger", this may mean: Battery malfunction (often found in devices stored in a warehouse for longer than 6 months). Power Controller (Typical for Redmi after falls) uncertified cable with damaged signal line, in which case, contact Xiaomi Service Center for diagnostics.

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

The first charge is just the beginning. To make Xiaomi battery last longer, follow these rules:

• 🔄 Keep the charge in the range of 20-80% – each cycle of 0-100% wears the battery more than two cycles of 20-80%.
• 🌡️ Avoid overheating if your phone is over 40°C (for example, after a game), let it cool before charging.
• 📵 Turn it off. 5G Wi-Fi at night – background activity drains the battery even in sleep mode.
• ⚡ Use Optimized Charging – In MIUI It is activated automatically, but you can set the schedule manually.
• 🔋 Keep your phone 40-60% charged – if you don’t use it for longer than a week, bring it up to 50% once a month and turn it off.

For models with wireless charging support (Xiaomi 13 Pro, Mix 4) try to use it no more than 1 time a week - induction heating reduces battery life by 10-15% faster than wired charging.

If you often discharge your phone to 0%, a warning will appear in the MIUI: "Battery is severely discharged. Charge as soon as possible." This is not just a reminder - a deep discharge (<3%) can cause irreversible sulfation of the battery plates.

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The most effective way to extend the life of Xiaomi’s battery is to avoid extreme conditions: keep the discharge below 10% and not keep it 100% at all times.

Frequent questions about Xiaomi’s first charging