You just unpacked a new Xiaomi smartphone and you wondered, how long does it take to charge it for the first time? This question is more controversial than choosing between Android and iOS. Some people advise to "calibrate" the battery with a 12-hour charge, others argue that modern lithium-ion batteries do not require special training. Who is right?
In this article, we will analyze the official recommendations of Xiaomi, the technical features of batteries in smartphones 2026 Years including Redmi Note models 13 Pro+, Xiaomi 14 Ultra and POCO X6 Pro, and disprove popular myths, you'll learn not only how many hours to keep the device on charge, but also how to do it correctly to extend the life of the battery on the battery. 20-30%.
Xiaomi’s official position: what the manufacturer says
The checkpoint is, is there a "first charge" section in your Xiaomi manual? Probably not. The manufacturer deliberately removed those guidelines from the documentation after 2018. Why?
The fact that all Xiaomi smartphones (starting with Mi 9 and younger) are equipped with lithium polymer batteries with a charge controller that automatically adjusts voltage and current.
- 🔋 The battery has no memory effect (unlike the 2000s nickel-cadmium battery)
- ⚡ The controller turns off power when it reaches 100%, even if the charger remains connected.
- 📱 System system MIUI Optimizes charging at the firmware level (Adaptive Charging function)
Xiaomi Russia’s official response in 26: “The first charge requires no special action. Connect your smartphone to the original charger and wait 100 percent. Modern batteries don’t need ‘training’ or long initial charging.”
Myths about the first charge: what actually harms the battery
The Internet is full of tips like "charge your smartphone 12 hours straight" or "discharge to 0% before first turning on." These recommendations are 15+ years old! Let's break down the most common misconceptions and their consequences for the battery of your Xiaomi:
| Myth | Reality. | Harm to the battery |
|---|---|---|
| “You need to charge 12-24 hours on the first switch.” | Lithium polymer batteries have no memory effect. Prolonged charging only heats the battery. | ↓ Reduction of the resource by 10-15% heat-up |
| First, discharge to 0%, then charge to 100%. | Deep discharge (below 3%) damages the chemical structure of the battery. | ↓ Loss of capacity on 20-30% after 5-10 cycle |
| "Use only the original charger." | It is important to observe the power (W) and charging protocol (Quick Charge, PD). | ⚠️ The risk is only when using cheap, uncertified adapters. |
The most dangerous myth is battery “training”: In 2026, all Xiaomi smartphones (from the Redmi A2 to the Xiaomi MIX Fold 3) use smart charge controllers that:
- 🛡️ Limit current at high temperature
- 📊 Optimize charging/discharge cycles
- ⚡ Automatically shut down power at 100%
⚠️ Warning: If you bought a Xiaomi smartphone with your hands and the seller claims that "the battery is new, but it needs to be calibrated," this may be a sign of a battery swap for a non-original one. → Battery → Battery status.
Next articleHow to Charge Xiaomi for the First Time
Here is the correct first-charging algorithm for all Xiaomi 2020-2026 models (including POCO and Black Shark):
- Unpack your smartphone and turn it on. Wait for the system to fully load (usually a charge level of 30-50%).
- Connect the original charger (or certified with Quick Charge 3.0/4.0 or PD support).
- Charge to 100% It's all about time: 🔌 Redmi Note 12/13, POCO X5: ~1 hour (33W) ⚡ Xiaomi 13T Pro, 14 Pro: ~40 minute (120W) 🐢 Redmi A1/A2: ~2.5 hour (10W)
Turn off the charging.
Use your smartphone.
Use the original cable and adapter | Charge up to 100% without interruptions |Do not leave on charging after 100% | Avoid overheating (do not play while charging) | First 3 cycles charge up to 80-100%, without discharge to 0%
-->
For models with wireless charging support (Xiaomi 13 Pro, 14 Ultra), the rules are the same, but keep in mind:
- 🔄 Wireless charging on 20-30% wired
- 🔥 The heating of the case may be higher – do not put the smartphone on soft surfaces
⚠️ Note: If your Xiaomi doesn’t charge when you first connect, check: Cable integrity (especially at the connector) USB-C) Clean Charging Port (dust and debris can block contacts) Power matching adapter (e.g. Redmi Note 12 Pro)+ minimum 30W fast-charging)
Features for different Xiaomi models (2022-2026)
Not all Xiaomi smartphones are the same. Here's what you need to know about the first charger for the popular series:
| Model | Type of battery | Max. Charging power. | Features of the first charge |
|---|---|---|---|
| Xiaomi 14 / 14 Pro | Lithium-polymer, 4880 mAh | 90W / 120W | Supports Surge G1 chip for charging control. It is recommended to use the original 120W adapter for calibrating the cooling system. |
| Redmi Note 13 Pro+ | Lithium-polymer, 5000 mAh | 120W | It has a double battery (2×2500 The first charge may take up to 30 minutes in use 120W-adapter. |
| POCO X6 Pro | Lithium-ion, 5,000 mAh | 67W | Optimized for gaming loads. Avoid running heavy games when you first charge (heating >40°C damages the battery). |
| Redmi A2 / A2+ | Lithium-polymer, 5000 mAh | 10W | Budget model without fast charging. The first charge will take ~2.5 hours. Don't use adapters more powerful than 18W! |
For flagship models (Xiaomi 13 Ultra, MIX Fold 3), the manufacturer recommends activating Adaptive Charging (Settings → Battery → Battery settings). This option analyzes your charging habits and optimizes charging to reduce battery wear.
What is Adaptive Charging in Xiaomi?
What to do after the first charge: rules of operation
To ensure that your Xiaomi battery lasts 3-4 years without noticeable degradation, follow these rules:
- 🔄 Avoid complete cycles (0%→Optimal range: 20%→80%.
- 🔥 Control the temperature: ❄️ Low 0°C: Charging is automatically turned off 🌡️ Above 40.°C: Battery degrades 2 times faster
- ⚡ Use the "smart" modes: Adaptive Charging (adaptive charging) Battery Saver (charge savings at 15%)
- 🔌 Do not use your smartphone while charging for resource-intensive tasks (games, video editing).
To check the status of the battery:
- Go to Settings → Battery → Battery status.
- Look at Capacity. If it's below 85 percent on a new device, that's a warranty.
- Use the code ##4636### (in dialer) for more information.
💡
If you often discharge your smartphone to 0%, turn on Auto Shutdown in the battery settings. It will turn off the device at 5% charge, protecting the battery from deep discharge.
Frequent Mistakes and How to Avoid Them
Even power users sometimes make mistakes that shorten battery life.-5 problems and solutions:
- Use of uncertified charging Cheap cables and adapters may not meet standards USB-C PD Or Quick Charge. That leads to: ⚡ Unstable current (the battery is charged with jerks) 🔥 Overheating of the charge controller
Solution: Buy accessories with a USB-IF certificate or original from Xiaomi.
Charging overnight
Even with Adaptive Charging, maintaining 100% charge on a regular basis reduces battery life.
Solution: Turn off charging after reaching 100% or use smart timer sockets.
Playing while charging
Simultaneous charging and high loading (e.g. Genshin Impact) increase the battery temperature to 45-50°C.
Solution: Wait for full charging before launching the games.
⚠️ Note: If after the first charge, the Xiaomi smartphone discharges quickly (more than 10% per hour in standby mode), this may indicate a high risk of a battery: 🔄 Background activity of applications (check in Settings) → Battery → Battery utilization) 📱 Battery defect (especially if you bought from hand) 🔌 Faulty charge controller (requires diagnosis at service center)
FAQ: Answers to popular questions
Can I use a charger from another smartphone (such as a Samsung or iPhone)?
How long should it take to charge the first Xiaomi Redmi Note 12 Pro?
Should Xiaomi be discharged to 0% before the first charge?
How to check if the battery is charged correctly after the first charge?
Can I interrupt the first charge Xiaomi?
💡
The main rule of Xiaomi’s first charging in 2026 is that no “special” actions are required. Charge your smartphone to 100% with the original adapter and use it as normal. All the myths about 12-hour charging or 0% discharge are a relic of the past that only harms modern lithium polymer batteries.