Xiaomi Redmi Note 12: what charging is needed, power and compatibility with adapters

Why it’s important to choose the right charging for the Redmi Note 12

Xiaomi Redmi Note 12 became one of the most popular devices of 2023 due to the balance of price, performance and modern features. However, many users face confusion: what kind of charging comes with the package, can you use adapters from older Xiaomi models, and will fast charging damage the battery? These questions are critical, because the wrong choice of charger can lead to slow charging, overheating or even failure of the battery.

In this article, we’ll go through all the nuances from standard equipment to compatibility with adapters from other brands, learn how to distinguish original charging from fake, what power Redmi Note 12 supports (including Pro, Pro+ and 4G versions), and how to extend battery life without compromising charging speed, and answer frequent questions, such as whether you can charge a smartphone from a laptop or bank power.

What is the charger comes with the Redmi Note 12: comparison versions

The Xiaomi Redmi Note 12 kit depends on the specific modification. The base model of the Redmi Note 12 4G comes with a 33W adapter, while the flagship versions of the series - Redmi Note 12 Pro and Redmi Note 12 Pro + - come with charges on 67W. This is a key difference that affects charging speed and compatibility with other devices.

Here’s what comes in the standard box of each version:

📦 Redmi Note 12 4G: charging Xiaomi MDY-12-ED (33W), cable USB Type-C (1 meter).
📦 Redmi Note 12 Pro/Pro+ 5G: charging Xiaomi MDY-12-EU (67W), cable USB Type-C → Type-C (1 metre, supports USB 2.0).
📦 Redmi Note 12 Discovery Edition (Chinese version): charging 120W (informally).

Important: The cable in the kit is designed for maximum charging power. Using third-party cables (such as from older smartphones) can limit speeds to 18W or 27W, even if the adapter supports 67W.

📊 Which version of Redmi Note 12 do you use?

Redmi Note 12 4G

Redmi Note 12 Pro 5G

Redmi Note 12 Pro+ 5G

Another model.

I haven't bought it yet.

Supported Charging Standards: Quick Charge, Power Delivery and Mi Turbo

The Redmi Note 12 is compatible with several fast charging protocols, but not all of them work equally efficiently.

⚡ Mi Turbo Charge: Xiaomi proprietary protocol, optimized for 33W/67W. Gives maximum speed (up to) 100% post 45–60 mins+).
⚡ Quick Charge 3.0/4.0: Partially supported (up to) 18W–27W). Qualcomm adapters will charge slower than the original.
⚡ USB Power Delivery (PD): power up 27W. Suitable for charging from laptops or power bank with PD.

Notably, the 67W-charged Redmi Note 12 Pro+ uses dual battery technology (two cells of 2250 mAh), which allows even distribution of load and reduce heat. However, to activate full power, you need to use the original adapter and cable from the kit.

Model	Max. Charging power.	Supported protocols	Charging time 0-100%
Redmi Note 12 4G	33W	Mi Turbo, QC 3.0, PD 2.0	~65 minutes
Redmi Note 12 Pro 5G	67W	Mi Turbo, QC 4.0, PD 3.0	~45 minutes.
Redmi Note 12 Pro+ 5G	120W* (Chinese version) / 67W (Global)	Mi Turbo, QC 4+, PD 3.0	~19 minutes (120W) / ~45 minutes (67W)

⚠️ Note: Use of adapters with higher power 67W (for example, 120W Xiaomi 12 Pro will not speed up charging, but can cause overheating of the cable or port USB-C. Smartphone will automatically limit power to a safe level.

Can I use charging from other Xiaomi smartphones?

Many users want to save and charge the Redmi Note 12 adapters from older models, for example, the Redmi Note 10 (22.5W) or Mi 11 (55W).

🔋 Charging. 18W–22.5W (For example, from the Redmi Note 9/10): The smartphone will charge, but the speed will be limited ~18W. The full charge time will increase to 1.5–2 hours.
🔋 Charging. 33W (POCO X3 Pro, Mi 10T): fitting for the Redmi Note 12 4G at full capacity. Pro/Pro+ speed limit 33W.
🔋 Charging. 55W–67W (Mi 11, Redmi K50): best-case Pro/Pro+. The speed will be close to the original (67W).
🔋 Charging. 120W (Xiaomi 12 Pro: the smartphone will take only 67W, the remaining power is not used.

Key point: Redmi Note 12 automatically adjusts power consumption depending on the adapter, but using low-quality or uncertified chargers can lead to:

❌ Battery overheating (especially when playing while charging).
❌ Accelerated battery wear (capacity loss after 1-2 years).
❌ Unstable work (spontaneous reboots).

☑️ How to check the compatibility of charging

View the power marking (W) on the adapterUse the original cable from the setCheck the temperature of the smartphone after 15 minutes of chargingAvoid cheap no-name adapters

Done: 0 / 4

How to distinguish the original charging Xiaomi from a fake?

Not only are fake adapters slower to charge, but they can also damage your smartphone. Here are 5 signs of Xiaomi's original charging:

Marking: The case must have a Mi or Redmi logo, an adapter model (e.g., MDY-12-ED), an output voltage (5V/3A, 9V/3A, 11V/3A for 33W).
Plastic quality: the original is matte, barbed-free, and fakes often shine and smell like cheap plastic.
Weight: the original 33W charging weighs ~50 g, 67W - ~65 g Fakes are lighter by 10-20%.
USB-Port: original Type-C pins are gold, tightly locking the cable.
QR-code: the original label has QR, Which leads to the official website of Xiaomi.

For additional verification, you can use the application AccuBattery (Android) or Ampere - they show the real charging power. 67W-The smartphone adapter only consumes 18W, Most likely, the adapter or cable is fake.

⚠️ Warning: Counterfeiting often poses as the original by copying the packaging. Buy charging only from official dealers (Mi Store, Wildberries/Ozon Check the certificates (for example, check the certificates, CE, RoHS on the hull).

What happens if you use fake charging all the time?

Prolonged use of substandard adapters leads to degradation of the smartphone power controller. After 6-12 months, you may encounter problems: the battery will only charge up to 80%, the smartphone will spontaneously turn off when connected to charging, or the USB-C ports will fail. In rare cases, the battery will bloat or even catch fire (especially when charging at night).

How to extend the battery life with fast charging?

Fast charging is convenient, but it increases the battery load. To make the Redmi Note 12 battery last longer than 2-3 years, follow these recommendations:

🔄 Avoid charging to 100%: optimal range is 20-80%. Use the function Optimized charging in settings (Settings) → Battery → Optimizing charging).
❄️ Do not charge in the heat or cold: the ideal temperature is 10-35°C. At 0°C or +40°The battery degrades 2-3 times faster.
🎮 Do not play while charging: games + fast-charging = If you need to recharge immediately, put your smartphone in airplane mode.
🔌 Use the original cable: cheap cables have high resistance, resulting in power loss and heat.

The current lithium polymer batteries in the Redmi Note 12 are designed to last 500 to 800 charge cycles (when properly operated). If you charge your smartphone from 0 to 100% every day, in 2 years, the capacity will drop to 70-80%. To avoid this, at least once a week, let the battery "rest" - discharge to 5-10%, and then charge to 80%.

💡

In the Redmi Note 12 settings, there is a hidden Quick Charging feature that you can turn off. Go to Settings → Battery → Additional → Quick Charging and deactivate the option. This will reduce the charging speed to 10W-18W, but extend the battery life by 20-30%.

Frequent questions about charging Redmi Note 12

❓ Can I charge the Redmi Note 12 Pro?+ power bank?

Yes, but the speed will be limited by power bank power. Most external batteries support USB PD 18W-27W, so the Redmi Note 12 Pro+ will charge at ~27W (instead of 67W from the outlet). For maximum speed, choose a power bank with PD 3.0 support and a capacity of 20,000 mAh (for example, Xiaomi Mi Power Bank 3 Pro).

❓ Why does the smartphone warm up while charging?

Heating to 40-45°C with fast charging is normal, but if the temperature is above 50°C, it's a sign of a problem. Possible reasons: Using a non-original adapter or cable; charging in a hot room or in direct sunlight; background processes (such as updating a system or a game); Solution: disconnect your smartphone from charging, let it cool down for 10-15 minutes, then use the original adapter in a cool place.

❓ Can wireless charging be used?

The Redmi Note 12 does not support wireless charging out of the box, but you can buy a special adapter receiver (for example, Xiaomi Mi Wireless Charging Receiver), which connects to the Type-C port and allows you to charge from Qi stations, but the speed will not exceed 10W.

❓ How long does it take to fully charge?

Time depends on the model and adapter: Redmi Note 12 4G + 33W: ~65 minutes, Redmi Note 12 Pro + 67W: ~45 minutes, Redmi Note 12 Pro+ + 67W: ~40 minutes (up to 80% in 20 minutes) with an adapter 18W time will increase to 1.5-2 hours.

❓ Can I leave my smartphone on charge at night?

Modern Xiaomi smartphones have protection against recharging, but leaving the device connected to the network at night is not recommended. Once you reach 100%, the smartphone is periodically recharged to maintain the level of charge, which over time reduces battery capacity. If you need to charge the smartphone at night, use the function Optimized charging (limits the charge to 80%).

💡

For the maximum charging speed of the Redmi Note 12 Pro/Pro+, use the original 67W adapter and cable from the kit. Charging from a laptop or power bank will be 2-3 times slower, but battery-safe.