Why the right charging is important for Xiaomi Redmi
Xiaomi Redmi smartphones are known for their value for money, but even the most reliable technology can be derailed by improper operation. One of the key aspects is battery charging. The lithium-ion and lithium-polymer batteries that are installed in modern Redmi (from Redmi Note 12 to Redmi 13C) are sensitive to charging modes, temperature and even the type of adapter used.
Many users find that after a year or two, the battery starts to run down in a few hours, although it initially held a charge for a day. The reason often lies not in factory defects, but in systematic charging errors that accelerate the degradation of the batteries. In this article, we will discuss how to charge the Xiaomi Redmi correctly, from choosing a charger to the optimal percentage of recharging, so that the battery lasts longer than the warranty period.
It’s important to understand that the instructions for older models (like the Redmi 4X or Redmi 5) and new flagships (like the Redmi K70 Pro) will be different. We focus on the current smartphones in 2022-2026, but the basic principles apply to earlier devices as well.
What to use for Xiaomi Redmi charging
The first thing to start with is choosing a charger, and most Redmis come with a 10W or 18W adapter, but many users prefer to buy more powerful chargers (like 33W or 67W) to speed up the process, but not everyone knows that this can damage the battery.
Xiaomi’s official guidelines are: use original or certified Quick Charge chargers (for older models) or MI Fast Charge (for newer ones). For example, a 120W adapter is suitable for the Redmi Note 12 Pro+, but only if it’s original. Cheap Chinese counterparts can not only slow charging, but also cause overheating.
- ⚡ Charging power: Check the maximum power supported by your model (indicated in specs or on the box). 18W, Redmi. K60 — already 67W.
- 🔌 Type of connector: modern Redmi uses USB-C, In the budget model (e.g. Redmi). A1) It could be micro-USB. Don't confuse it!
- 🛡️ Certification: Look for signs CE, RoHS or the words “Made for Xiaomi” on the package.
⚠️ Note: Using a charger from another manufacturer (such as Samsung or Apple) can cause the smartphone to charge more slowly or overheat, especially models with HyperCharge support (such as the Redmi Note). 11T Pro+).
Step-by-step: how to charge Xiaomi Redmi correctly
Now, let's get to the process. Even if you've been using your smartphone for a while, check if you're making these mistakes.
- Connect the charger to the socket (not to the USB-Power bank or computer port if you need to charge quickly).
- Use the original cable. Cheap cables may not be able to withstand high currents, which results in power loss.
- Do not turn on your smartphone while charging if it is discharged to 0%. Let it stand for 5-10 minutes before pressing the power button.
- Watch the temperature. If the body is heated above 40°C, turn off the charger and let the device cool.
For models that support fast charging (like the Redmi Note 12 Pro), the process takes about 30-40 minutes to 80%, but the last 20% can take another 20-30 minutes.
Check the integrity of the cable and adapter
Make sure the USB-C connector is clean (no dust/junk)
Disable resource-intensive applications (games, video player)
Do not put your phone under direct sunlight.-->
If your Redmi supports wireless charging (like the Redmi K50 Ultra), remember: this method is 20 to 30 percent slower than wired charging and heats the device more.
Optimal Charging Percentages: Myths and Reality
One of the most controversial questions is how much to charge Xiaomi Redmi to last longer.
- 🔋 0-100%: full discharge/charging cycle, which was previously recommended for battery calibration, but is harmful for today's lithium-ion batteries.
- 📊 20-80%: optimal range that extends life by 30-50%, ideal for daily use.
- ⚡ 40-80%: even more gentle mode, but not always convenient (you have to recharge often).
Research shows that charging to 100% and discharging to 0% reduces battery life by 200 to 300 cycles, compared to charging in the 30-80 percent range, which can last up to 800 to 1,000 cycles instead of the standard 500.
| Charging range | Impact on the battery | Recommendations |
|---|---|---|
| 0–100% | Severe degradation, loss of capacity after 1-2 years | Avoid calibration 1 time in 3 months |
| 20–80% | Optimal balance between comfort and durability | Recommended for everyday use |
| 40–60% | Maximum service life, but uncomfortable | Suitable for "stationary" use (e.g. tablet) |
New Xiaomi models (like the Redmi Note 13 Pro+) have an “Optimized Charging” feature (Settings → Battery → Optimizing Charging) that automatically limits the charge to 80% if you plug in a smartphone overnight, one of the most effective ways to extend battery life.
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If you need to charge your phone to 100% (for example, before a trip), do it 1-2 hours before departure, rather than leaving overnight, so the battery will have time to cool and stabilize.
What to do if Xiaomi Redmi is not charging
Sometimes users find that the smartphone does not respond to charging or charges too slowly, the reasons can be both software and hardware.
- 🔌 Cable/adapter problems: try another kit. Notice the curves of the cable at the connector, which often form microcracks.
- 📱 Contaminated in the port USB-C: Clean it carefully with a toothpick or compressed air!
- 🔋 Software failure: Restart your phone or reset your settings through Settings → System system → Resetting settings (not to be confused with a full reset!).
- 🌡️ Overheating or hypothermia: If the phone was in the cold or under the sun, let it warm up/cool down to room temperature.
If nothing helps, check the battery status through the engineering menu:
##4636##In Battery information, look at the health setting, and if it shows "Good," it's not the battery that's the problem, and if it's "Unknown" or "Dead," it's time to change the battery.
⚠️ Warning: If after a fall or impact the phone stopped charging, do not try to disassemble it yourself! in Xiaomi Redmi the battery is glued to the body, and careless actions can lead to a short circuit.
What if the phone is charging but the percentage is not rising?
How to extend the life of the Xiaomi Redmi battery: 5 working tips
Even if you charge your smartphone correctly, there are additional measures that will help you keep your battery capacity for years to come:
- Turn off unnecessary background processes. Go to Settings → Apps → Autostart and disable autoboot for underutilized programs.
- Use a dark theme. AMOLED-screens (e.g. in Redmi) K60) This reduces energy consumption by 15-20%.
- Update software. Newer versions of MIUI often optimize power consumption. Check for updates in Settings → About Phone → System Update.
- Avoid extreme temperatures. Don't leave your phone on the dashboard of your car in summer or on the balcony in winter.
- Keep your phone with a charge of 40-60% if you do not use it for a long time (for example, during a vacation).
Another useful trick is to disconnect. 5G, If you don't use it, it's in support models. 5G (For example, the Redmi Note 11 Pro 5G) This module uses a lot of power even when it's in standby mode. 4G In Settings → SIM-maps and mobile networks → Preferred type of network.
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The most harmful scenario for the battery is when the phone is on charge all night at 100% charge and high temperature, which accelerates degradation by 2-3 times.
Wireless charging: pros and cons for Xiaomi Redmi
Wireless charging (Qi standard) is becoming more popular, but not all Redmi models support it. For example, the Redmi Note 12 Pro+ can charge wirelessly at 30W, but the Redmi 10 can't. If your smartphone is compatible, here's what you need to know:
- ✅ Pros: Convenience (no cable required) Less wear and tear USB-C.
- ❌ Cons: Slower wired charging (20-40%) Strong heating (temperature can rise to 45)°C) Need for precise positioning at the charging station.
If you do use wireless charging, keep an eye on the temperature of the case, and you can buy a fan-powered charging station (such as the Xiaomi Mi Wireless Charging Stand) that reduces heat by 10 to 15 percent.
For models without built-in Qi support (such as the Redmi 9A), there are adapters that are inserted into the USB-C connector. However, they often block port access and can interfere with the connection of headphones.