How to Charge Xiaomi’s New Smartphone for the First Time: A Complete 2026 Guide

Why Xiaomi’s first charging isn’t just a plug-in

You unpacked the new Xiaomi Redmi Note 13 Pro+, POCO X6 Pro or Mi 14 Ultra — and before you the question arises: how to charge it for the first time? on the Internet there are a lot of conflicting tips — from “discharge to 0%” to “hold on charging 12 hours.” 90% of these recommendations are outdated for 10+ years and relate to nickel-metal hydride batteries, which are not in modern smartphones.

Modern Xiaomi batteries are equipped with Li-Po or Li-ion batteries that do not require “training” or “calibration” when first used. However, improper first charging can reduce battery capacity by 5-15% after a year, especially if you use fast charging at 120W or 210W. In this article, only current data from official Xiaomi sources and battery research from Battery University.

We'll take it apart.

• 🔋 What percentage of charge should be on the first charge (spoiler: not 100%)
• ⚡ Can I use fast charging right away or should I wait?
• ⏱ How long does the first charge take on different models?
• ❌ 5 Mistakes That Kill Your Battery From Day One

Myths about the first charge: what actually harms the battery

The most common myth is that a new smartphone should be discharged to 0% and charged to 100% 3 times in a row. This rule was true for nickel batteries (Ni-MH), which were used in the button phones Nokia 3310 or Siemens C55. Lithium batteries, which have been in Xiaomi since 2010, work on different principles.

Here’s what really hurts the battery when you first charge:

• 🔥 Overheating higher 40°C -- reduces the capacity by 30-40% post 100 Cycles (Battery University data)
• ⚡ Using a non-original charger with inappropriate protocols (e.g., Samsung charging for Xiaomi 14)
• 📉 Long stay on 100% charge (more than 2 hours) - accelerates the degradation of the anode
• 🚫 Interrupting the first charge on 50-80% (If you do not use adaptive charging)

Xiaomi’s official position (from the manuals to Redmi Note 12, POCO F5, Mi 13T): “First charging requires no special actions. Use the original charger and cable from the kit.” However, there are nuances that the manufacturer does not advertise – for example, on models with support for 120W+ fast charging is better not to use in the first 3 cycles, so that the battery controller is “accustomed” to the new battery.

Next articleHow to Charge a New Xiaomi for the First Time

The algorithm depends on what percentage of charge was purchased. Most Xiaomi smartphones come with a charge of 40-60% - this is enough for the initial setup. If the battery is discharged to 10-20%, follow this instruction:

1. Turn on your smartphone and complete the initial setup (Wi-Fi, Mi Account)

2. Connect the original charger (not power bank!)

3. Charge to 80-85% (not to 100%!)

4. Turn off charging and use your smartphone for 1-2 hours

5. Recharge to 100% before bedtime (if necessary)

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Important details:

• 🔌 Use only the original cable and power supply from the kit. Charges from other brands (even with the same power) may not support Quick Charge 4 protocols.+ HyperCharge, which will lead to overheating.
• 📱 On models with adaptive charging (Xiaomi) 13/14 series, Redmi K60) Enable it in the settings: Settings → Battery → Adaptive charging. That'll limit the charge to 80% nightly.
• ⏳ First charging time depends on model: Xiaomi Model Charging power Up to 100% Recommended first cycle Redmi Note 13 Pro+120W19 Up to 80% in 15 minutes, then turn off POCO F5 Pro67W38 Up to 85% in 30 minutes Xiaomi 14 Ultra90W (Wireless 47 minutes Up to 80% in 40 minutes Redmi 12C10W2 10 minutes to 100%, then turn off

⚠️ Note: If the Xiaomi smartphone came with less charge 10%, Don't turn it on right away. Connect to the charger on the 15-20 minutes, then do the setup. 3% This can cause a deep discharge, after which the battery loses 20-30% capacity.

Fast charging: Can I use it from day one?

HyperCharge (120W+), Turbo Charging (67W), and Fast Charging (33W) have all become Xiaomi’s trademark, but using maximum power from day one is a controversial issue.

On the one hand, the manufacturer tests the batteries in the factory with fast charging in mind, and on the other, University of Michigan research shows that high currents (5A+) accelerate the degradation of graphite anode in the first 10 cycles.

• ⚡ For models with 120W+ (Redmi Note 12 Pro+, Black Shark 5 Pro: First 3 charges run at power up to 33W (Use the "Normal Charging" mode in the settings).
• ⚡ For models with 67W (POCO F4 GT, Xiaomi 12T): You can use fast charging, but turn off at 80%.
• ⚡ For budget models (Redmi) A2, POCO M5) s 10-18W: no limits.

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On smartphones with HyperCharge (120W+) in the first days of charging, use the Battery mode in the settings to limit power to 50W. This will reduce heating and prolong battery life.

How to check current charging power? Go to Settings → Battery status → Charging power. If the value exceeds 30W on new models, it is better to manually lower it.

5 First-Purpose Mistakes That Kill Xiaomi Battery

Even if you follow the interest rate, you can make critical mistakes.-5 most destructive:

1. Using a smartphone during the first charge (games, videos, updates) This raises the battery temperature to 45-50°C, which reduces its resources by 30%. ⚠️ Note: If Xiaomi is heating up higher during charging 40°C (check in Settings) → Battery status, immediately disconnect it from the network and let it cool down.
2. Charging from USB-These sources often do not provide stable voltage, which leads to microcharges - the battery constantly fluctuates between 98% and 100%, losing capacity.
3. Staying on overnight charging (even with adaptive charging) Lithium batteries don’t like being 100 percent long, which speeds up dendrites.
4. Using cases during charging: Dense silicone or leather covers degrade heat sink, increasing the temperature by 5-10 °C.
5. Charging interruption by 50-70% without need.The Xiaomi battery controller is optimized for full cycles (0-100%) rather than partial cycles.

How to avoid these mistakes? Follow the 80/20 rule: charge up to 80% during the day and up to 100% only when necessary (for example, before a long trip), this will extend the life of the battery by 30-50%.

What to do after the first charge: Optimizing the battery

To ensure that Xiaomi’s battery lasts 3-4 years without noticeable degradation, follow these steps in the first 3 days:

• 📊 Calibrate the battery: Discharge the smartphone before automatically shutting down (0%). Charge to 100% without interruption (use the original RAM). Turn off the charger and turn on the smartphone. 95-98%, recharge until 100%.

Note:

once-in-a-month

Set up adaptive charging

Settings → Battery → Adaptive charging → Enable


Settings → Battery → Optimization of charging → Enable

This feature limits the charge to 80% at night and recharges up to 100% before you wake up.

Update the firmware

Settings → About the phone → System update

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The calibration of the battery is not for training, but for synchronizing the controller data with the real capacity, and if you don't, the smartphone can show 30% charge and suddenly shut down.

For dual-battery models (Xiaomi 11T Pro, Black Shark 4), calibration is especially important, as the controller controls the two batteries independently. If one of them is out of balance, the smartphone will quickly discharge after 50%.

How much does Xiaomi battery last for the right first charge?

Battery life is measured in charge cycles. One cycle = discharge from 100% to 0%. Modern lithium polymer batteries in Xiaomi are designed for 500-800 cycles until 20% capacity is lost.

With proper first charge and further care, Xiaomi’s battery will serve:

• 📅 3-4 day-to-day 0-100%
• 📅 4-5 charge-year 20-80% and the use of adaptive modes

How do you check the battery? Type in the Phone app code ##4636##, then select Battery Information. Health indicates current capacity relative to factory capacity. If it's below 85%, it's time to change the battery.

FAQ: Frequent questions about Xiaomi's first charge