Replacing a charger on Xiaomi: how to choose and install correctly

Why Xiaomi Charging Fails and When to Change It

Xiaomi chargers, both original and third-party, lose efficiency over time or break down completely, due to several factors: voltage surges in the network, mechanical damage to the cable, oxidation of contacts or banal wear after hundreds of connection cycles. For example, the Redmi Note 10 and POCO X3 models often suffer from the USB-C connector due to heavy use, and the old Mi A1/A2 have microcracks on the wire at the base.

How do you know if you need to change your charging?

• 🔌 The smartphone does not charge at all or the process is extremely slow (less than 1% per minute).
• ⚡ Sparks or a foreign smell when connected to a socket is a critical signal that is dangerous to ignore!
• 📱 The phone shows a message saying “No Charging is supported” or “Use the original RAM».
• 🔄 The cable works only in a certain position - this indicates damage to the internal veins.

It's important to distinguish the charger problem from the charging port malfunction on the smartphone itself, and if you've tried multiple charges and the result is the same, it's probably the phone, and you'll need a diagnosis from a service center.

Original vs Third-Party Charging: What to Choose for Xiaomi

There are three types of chargers for Xiaomi on the market:

• 🏆 Original – manufactured by Xiaomi or its official partners (e.g., by the company, ZMI). They are compatible with Quick Charge technology. 3.0/4+, Turbo Charge).
• 🔧 Certified third-party brands are Anker, Baseus, Ugreen, and have been tested to meet Xiaomi standards, often cheaper than the original, but not inferior in quality.
• ⚠️ Uncertified -- cheap fakes with no protection against overheating or power surges -- can knock out a smartphone battery.

For models with fast charging support (for example, Xiaomi 13 Pro – 120W, POCO F5 – 67W), it is critical to use RAM with the appropriate power. If you connect the Redmi Note 12 (maximum 33W) to charging on 5W, charging time will increase by 4-5 times!

⚠️ Warning: Charges from AliExpress or unknown vendors often have an understated real power. 65W In practice, you can only get 10–15W, which leads to overheating and accelerated wear of the battery.

Step-by-step: how to change charging on Xiaomi

If you are convinced that the problem is in the charger, follow this instruction:

1. Turn off the power. Remove the cable from the USB-C or Micro-USB port (older models).
2. Check the new cable and adapter, make sure the contacts are clean and there are no cracks on the wire, and you can use a flashlight and a magnifying glass to do that.
3. Connect the charger to the socket. If you use an extension cord, check it with another device.
4. Connect the cable to the phone. Move the connector lightly, if charging is interrupted, the problem may be in the port of the smartphone.
5. Watch the display. The battery icon with the charging animation should appear on the screen, and the Redmi and POCO models also have an LED light.

Check the cable for damage.

Check the voltage in the socket (220V)

Make sure the power compatibility of the phone and the RAM

Test charging on another device

Clean the charging port of the phone from dust-->

If after connecting a new charge, the smartphone still does not charge:

• 🔄 Try another cable (sometimes the problem is in it, not the adapter).
• 🔌 Connect to another power source (e.g, USB-port).
• 📱 Restart your phone – sometimes a software failure blocks charging.
• 🔧 Clean the smartphone charging port with a plastic toothpick (not a metal object!).

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If the phone gets warmer than usual after recharging, disconnect it from power and check power compatibility. For example, charging 120W for the Xiaomi 13T (max. 67W) can cause overheating.

What to do if the new charging does not work

The situation, when even the original charger is not recognized by the smartphone, occurs in ~15% of Xiaomi users.

1. The charging port is contaminated. Dust, pile, or contact oxidation block the connection. Use alcohol and cotton swab to clean (no hair dryer!).
2. Firmware failure. After the MIUI update, some models (Redmi Note 9, Mi 10) will no longer recognize charges. The solution is to reset settings through Settings → About Phone → Reset settings.
3. The power controller is damaged. It's a hardware malfunction that can only be diagnosed in a service center. Symptoms: the phone doesn't charge on any charge, but it determines the connection (vibration, sound).

For diagnostics, use the hidden test menu (works on most Xiaomi models):

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In Battery Information, check charging status. If it says "Not charging" when the cable is connected, the hardware is the problem.

⚠️ Warning: Do not use life hacks like heating a dryer charging port or closing contacts. This can short-circuit and cause the motherboard to fail.

How to extend the life of a Xiaomi charger

The average lifespan of Xiaomi’s original RAM is 1.5-2 years with heavy use. To extend this period, follow the recommendations:

• 🔌 Don't pull the cable out of the wire. Always hold on to the connector. USB-C/Micro-USB.
• 🌡️ Avoid overheating. Do not cover the charge during operation or use it at a temperature higher +35°C.
• ⚡ Turn off the socket if you're not using it. Even when you're in standby mode, the adapter consumes energy and wears out.
• 🔄 Regularly clean the connector contacts with dry soft cloth (for example, microfiber).

For models with wireless charging (Xiaomi 13 Pro, Mix Fold 3), it is important to use certified stations (for example, Xiaomi Mi Wireless Charging Pad). Cheap counterparts can give unstable voltage, which reduces battery life by 20-30%.

Where to buy the original charging for Xiaomi in 2026

Avoid shopping in markets or street vendors, where the risk of getting a fake is as high as 70%.

When buying, pay attention to:

• 🏷️ Packaging – Xiaomi’s original RAMs have a hologram and serial number.
• 🔍 Weight – counterfeits are usually 20 to 30 percent lighter due to cheap materials.
• 📄 Documents – in the box there should be a warranty card and instructions in Russian.

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The only way to guarantee the original charger is to check the serial number on the Xiaomi Verify website.

Frequent errors when replacing a charge and how to avoid them

Even experienced users sometimes make mistakes that lead to a breakdown of the phone or charger.-5 among:

1. Use of "universal" chargers: "All models" RAMs rarely meet Xiaomi standards, for example, they may not support Quick Charge 3.0 protocol, which will charge the phone 2-3 times longer.
2. Wet cable connection. Humidity on the contacts causes corrosion and short circuits. Always dry the connector before connecting (at least 10-15 minutes).
3. Ignoring system messages: If your smartphone gives you a warning, "Use the original charger," don't wave it away, which means that your current RAM has failed the power controller's check.
4. Charging at extreme temperatures: The optimal range for lithium-ion batteries is from +10°C to +30°C. Charging in the cold or in direct sunlight reduces battery life.
5. Use of damaged cable, even if the cable is "still working", bare wires or cracks in the insulation can cause an electric shock.

Especially careful should be the owners of models with a non-removable battery (Xiaomi). 12T, Redmi K50). Incorrect charging can cause the battery to bloat, requiring expensive repairs (from 3,000 to more). ₽).