Introduction

Xiaomi has launched its new flagship phone - Xiaomi 15 Pro. It is equipped with Snapdragon® 8 Elite Mobile Platform, Leica Summilux optical system with ultra-level telephoto, built-in new Xiaomi HyperOS 2, built-in 6100mAh battery capacity, and supports 90W wired charging and 50W wireless charging. Next, let’s take a look at the charging performance of the Xiaomi 15 Pro.

Product Appearance

The Xiaomi logo is printed on the box's upper right corner, the Xiaomi 15 Pr and Leica logos are in the middle, and the words "Xiaomi HyperOS" are in the lower left corner.

Some spec info is printed at the bottom.

The box contains the phone, a 90W charger, a USB-C cable, a phone case, and some documents.

It has a 6.73-inch 2K low-power screen with a pixel density of 522PPI, an adaptive refresh rate of 1-120Hz, a resolution of 3200*1440, a peak brightness of 3200nits, covers 100% P3 wide color gamut, and supports 3D ultrasonic fingerprint, DC-like dimming, and 1920Hz high-frequency PWM dimming.

Xiaomi 15 Pro is equipped with three Leica large-aperture lenses that cover focal lengths from 14mm to 120mm, making it versatile for various styles, from portraits to landscapes. The main camera has an impressive ƒ/1.44 aperture, allowing more light, faster shutter speeds, and natural background blur. This creates an enhanced "main character" effect in portrait shots and emphasizes subjects in stills.

The power button and volume button are both on the left.

There are no openings on the top.

From left to right, at the bottom are the speaker opening, USB-C charging port, microphone opening, and SIM card slot. The USB-C port supports USB 3.2Gen2 transmission specifications and theoretically supports up to 10Gbps.

The length of it is about 161.5 mm (6.36 inches).

The width is about 75.5 mm (2.97 inches).

The thickness is about 8.3 mm (0.33 inches).

The weight is about 218.6 g (7.71 oz).

It is equipped with Xiaomi HyperOS 2 and has a built-in 6100mAh battery.

The included 90W charger shell is made of a smooth and shiny fireproof PC. The plug is fixed.

It only has one USB-A port with an orange plastic sheet and widened pins.

Model is MDY-14-EC. It can support input of 100-240V~ 50/60Hz 2.0A. It can support output of 5V/3A, 3.6-5V/3A, 5-20V/6.1-4.5A.

ChargerLAB POWER-Z KM003C shows it supports DCP, QC3.0, PD3.0, and Xiaomi 90W charging protocols.

It has four fixed PDOs of 5V/3A, 9V/3A, 15V/3A, and 20V/3.25A. It has three sets of Xiaomi's proprietary voltage levels: 3.6V-11V/6.1A, 3.6-20V/4A, and 3.6-20V/4.5A.

The USB-A to USB-C cable can support a current of 6A.

The USB-A connector has special pins that are used for Xiaomi's proprietary protocol.

The length of the cable is about 1 m (3' 3.37'').

The length of the charger is about 55.94 mm (2.2 inches).

The height is about 49.14 mm (1.93 inches).

The thickness is about 27.86 mm (1.097 inches). The volume is about 76.58cm³. Based on the charger power of 90W, the power density is as high as 1.18W/cm³.

The weight of the charger set is about 128.1 g (4.52 oz).

Compatibility Test

Next, let's do the charging compatibility test. 

Original Charger

Xiaomi 15 Pro supports QC3+ / QC3.0 / QC2.0 / PD3.0 / PD2.0 fast charging protocol / MI FC 2.0 fast charging. We use some Xiaomi chargers to test the real-time power.

Charge with the original 90W charger, the power is about 19.07V 3.91A 74.55W.

Except for the 45W charger, the voltage of other chargers can reach about 19V.

We have compiled the test results into a bar chart. There are no compatibility issues. The maximum power can reach 77.37W

Third-party Chargers

We also used a variety of third-party chargers during the test. Let’s take a look at the results.

There is no compatibility issue. Most chargers can reach a current of 3A. Xiaomi 15 Pro supports fast charging protocols such as QC and PD, and the charging power can reach about 27W.

We have compiled the test results into a bar chart. Most chargers can reach a power of about 13W and 26W. The maximum power can reach 27.4W.

Full Charging Test

We use the original 90W charger to fully charge the Xiaomi 15 Pro. And put them into a 25°C (77℉) thermotank throughout the test.

At first, the voltage is around 19V. The charging curve can be divided into four parts. In the first part, the power was around 74W for the first 2 minutes. Then, the power gradually drops to 56W and 33W in turn. After that, the power slowly drops to almost zero. At about 52 minutes, the voltage drops to 9V. It takes 53 minutes to be fully charged.

From this chart, it can charge the Xiaomi 15 Pro to 50% in 18 minutes and 80% in 32 minutes. It reaches 100% in 53 minutes.

Temperature Test

We also recorded the highest temperature on the front and back after charging for 10 minutes, 20 minutes, and 30 minutes.

10 minutes Charging

After 10 minutes, the maximum temperature on the front is 40.1℃ (104.18 ℉).

The back is 40.6℃ (105.08 ℉). 

20 minutes Charging

After 20 minutes, the maximum temperature on the front is 42.3℃ (108.14 ℉).

The back is 41.8℃ (107.24 ℉). 

30 minutes Charging

After 30 minutes, the maximum temperature on the front is 38.7℃ (101.66 ℉).

The back is 40.3℃ (104.54 ℉). 

We also turn it into another curve. The temperature on the front during charging is between 38.7-42.3℃. The temperature on the back is between 40.3-41.8℃. The temperature reaches its highest after 20 minutes of charging when the charging power is about 37W. The phone feels warm to the touch at this time.

Summary of ChargerLAB

Xiaomi 15 Pro is equipped with a 6.73-inch 2K low-power screen, a 6100mAh battery, and a Leica optical lens module. It is powered by the Snapdragon® 8 Elite Mobile Platform and Xiaomi HyperOS 2. It supports 90W wired fast charging and 50W wireless fast charging. It takes 53 minutes to fully charge with the original 90W charger set.

When charging it with Xiaomi's chargers, the power can reach over 70W. Third-party chargers that support PD and QC protocols can reach a charging power of up to 27.4W. Since the original cable adopts special pins, we recommend using the original charger with the original cable for charging.

Overall, as a flagship phone, the Xiaomi 15 Pro has been improved in all aspects compared with the previous generation. The new Xiaomi HyperOS 2 system will also bring you surprises.

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