Xiaomi Mi 9T: what is the charging package and everything you need to know about its characteristics

The Xiaomi Mi 9T (also known as the Redmi K20 in some regions) is still a popular smartphone due to its balance of price, performance and design. However, many users have questions about the configuration — especially when it comes to the charger. There are conflicting reports online, with some claiming that the box contains 18-watt charging, others claiming that it has 27-watt charging, and some even having to deal with the fact that the original power supply has failed and needs to be replaced.

In this article, we will discuss in detail what kind of charging was bundled with the Mi 9T in different regions and lots, what its specifications are, and what to do if the original adapter is lost or broken, and you will learn whether you can use charging from other Xiaomi models, how to distinguish the original from a fake, and what alternative options are better to choose for fast and safe charging.

Xiaomi Mi 9T: what lies in the box

According to official Xiaomi data, the standard equipment Mi 9T (model M1903F10I) includes:

• 📱 Smartphone Xiaomi Mi 9T (black/blue/red variant)
• 🔌 Charger (power adapter)
• 🔌→📱 Cable USB Type-C (length 1 metre)
• 📄 A short user guide
• 🔧 Paperclip for the tray SIM-map
• 🛡️ Protective cover (in some regions)

However, the main catch here is that depending on the market and the batch of production, the chargers in the kit may differ. For example, in the European and Russian versions, the 18W adapter (MDY-08-EQ model) was more common, while in Chinese and Asian versions it was more common for the 27W (MDY-10-EU model), which is due to the fact that the Mi 9T supports Quick Charge 4+ technology, but the manufacturer could save on configuration for different regions.

To determine exactly what charging was in your kit, note the labeling on the adapter itself.The original Xiaomi power supplies have the following designations:

If your adapter is labeled differently, it’s likely a fake or a charger from another model, so we recommend checking its compatibility with the Mi 9T to avoid battery problems.

Technical characteristics of the original charging Mi 9T

Regardless of the power (18W or 27W), Xiaomi’s original Mi 9T chargers have several key features:

• 🔌 Type of connector: USB Type-A (on adapter) → USB Type-C (on cable).
• ⚡ Support for protocols: Quick Charge 4+, USB Power Delivery (PD) (partly).
• 📏 Adapter sizes: ~45×45×25 (compact, but not the smallest).
• 🔋 Efficiency: up to 85% (minimizes heating when charging).

It’s important to understand that the Mi 9T supports fast charging up to 27W, but that doesn’t mean the smartphone will charge at that speed from any adapter.

1. Power supply (18W or 27W).
2. Cable quality (original Type-C from Xiaomi is preferred).
3. Ambient temperature (when overheating, the smartphone automatically reduces the current).

For example, with an 18-watt charge, the Mi 9T charges from 0 to 100% in about 1 hour 40 minutes, whereas with a 27-watt adapter, this time is reduced to 1 hour 15 minutes.The difference is noticeable but not critical for everyday use.

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If your Mi 9T is charging more slowly than before, check the condition of the cable and Type-C connector. Often the problem lies in oxidized contacts or damaged wire insulation.

Can you use charging from other Xiaomi models?

One of the most common questions is, "Can I charge the Mi 9T with a charge from the Redmi Note 10 Pro, POCO X3 or Mi 11?" The answer is yes, but with reservations. Xiaomi smartphones are usually compatible with each other, but there are nuances:

• ✅ Suitable adapters: 📱 Redmi K20 Pro (27W, MDY-10-EU) — perfect-substitute. 📱 Mi 9/9T Pro (27W) — full compatibility. 📱 POCO F1 (18W, MDY-08-EQ) — It will work, but it will work slower.
• ⚠️ Undesirable options: 📱 Charging from Redmi. 5/6/7 series (10W) — too low power. 📱 Micro-USB adapters – an adapter will be needed, which will reduce efficiency. 📱 Power supplies without Quick Charge support – can damage the battery with prolonged use.

It’s also worth remembering that Xiaomi sometimes changes charging protocols in new models, such as Mi 11 or Mi 12 (33W+) adapters that are theoretically compatible, but may not deliver top speeds due to differences in power management algorithms.

⚠️ Note: Never use chargers from laptops (for example, 65W or 90W) Too high a voltage can knock out a smartphone's power controller, even if the Type-C connector matches.

How to distinguish the original charging Xiaomi from a fake

Fake chargers are one of the main causes of battery failures and power controllers, and check for the following signs to avoid problems:

1. Packaging: 📦 The original adapter is sold in a white box with the Xiaomi logo and a holographic sticker. 🔍 The package must contain a model (MDY-08-EQ etc.), capacity and certificates (CE, RoHS).
2. Appearance: 🎨 The body of the original matte, without burrs and uneven seams. 🔤 Marking is clear, without typos (for example, "Mi" instead of "Xiaomi" - a sign of forgery).

Weight and size

• ⚖️ The original adapter weighs in ~40 Counterfeiting is often easier (25-30 s).
• 📏 The sizes must be the same as those specified in the official documentation.

If you buy a charger outside the official Xiaomi store, be sure to check it with the AccuBattery (Android) app or USB Tester (to measure real power).

What to buy if the original is lost or broken

If you need to replace the charger for the Mi 9T, here are the proven options:

When choosing, pay attention to:

• 🔌 Availability of certificates (CE, UL, RoHS).
• 📦 Package (better to take with a Type-C cable).
• ⭐ Customer reviews (especially on heat and job stability).

⚠️ Avoid ultra-budget adapters without a brand (e.g., "no-name" for a brand). 200 They often do not correspond to the declared power and can damage the smartphone. 200-300 RUB for the verified brand (Baseus, Anker, Ugreen).

Frequent Mi 9T charging problems and their solutions

Owners of the Mi 9T sometimes face the following problems:

1. The smartphone does not charge from the original adapter: 🔌 Check the cable (try another Type-C). 🧹 Clean the smartphone connector from dust (use a toothpick or compressed air). 🔄 Restart the device (sometimes resetting the power controller helps).
2. Charging is going too slow: 🔋 Turn off your smartphone while charging (accelerates the process). ❄️ Do not use your phone in the cold (below). +5°C charging locked). 📴 Close the background apps (especially games and navigators).

Adapter warms or smells of fire

• ⚡ Turn off the charging immediately!
• 🔍 Check the adapter for bloating or melting.
• 🚫 Do not use it again - the risk of short circuit.

If problems persist, try resetting your smartphone to factory settings (Settings → System → Resetting). In extreme cases, contact the service center - there may be a malfunction of the power controller or battery.

Try another Type-C cable.

Testing another power adapter

Clean the smartphone connector from garbage

Reset the device

Check the battery temperature (not higher than 40°C)

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FAQ: Answers to popular questions about charging Xiaomi Mi 9T