Introduction

ChargerLAB has previously tested the OPPO Find X8 Pro, which was impressive for its excellent photography performance and thin body. The 5910mAh battery and 80W charging power are also significant improvements. Today we will test the charging performance of the OPPO Find X8.

Product Appearance

Its packaging box is exactly the same as that of OPPO Find X8 Pro, except that the text on the top is Find X8.

The box contains the OPPO Find X8, an 80W charging set, and some documents.

It has a 6.59-inch 1.5K screen with a resolution of 2760*1256, 460PPI, and supports 1-120Hz dynamic adjustment.

It is available in four colors: Star Grey, Space Black, Shell Pink, and Blue.

There is a speaker hole, a microphone hole, and an infrared hole on the top.

There is a volume button and a power button on the right side.

There is a three-stage button on the other side, which can switch between silent, vibrate, and ringing with one click.

The bottom houses the speaker, USB-C port, microphone, and SIM card slot.

The length of the phone is about 157.42 mm (6.2 inches).

The width is about 74.36 mm (2.93 inches).

The thickness is about 7.90 mm (0.31 inches). 

The weight is about 195.5 g (6.9 oz).

That's how big it's in the hand.

It is equipped with an 80W USB-A charger and a USB-A to USB-C cable.

The charger uses a white fireproof PC shell.

The specs info is printed below the plug. Model is VCB8OACH. It can support input of 100-240V~50/60Hz 2A. It can support output of 5V 2A and 5-11V 7.3A MAX.

The connector is debossed with 8A.

The USB-A port has independent pins and widened pins on both sides, which may be able to pass large currents.

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

The length of the charger is about 55.34 mm (2.18 inches).

The height is about 54.21 mm (2.13 inches).

The thickness is about 31.51 mm (1.24 inches). The volume is about 95cm³. Based on an output power of 80W, the power density is about 0.85W/cm³.

The weight of the charger set is about 133.7 g (4.72 oz).

ChargerLAB POWER-Z KM003C shows it supports UFCS, QC3.0, VOOC, SVOOC, and DCP charging protocols.

It has two sets of UFCS of 3.3-5V3A and 5-11V3A.

Charge with the original 80W charger set, the power is about 9.82V 7.27A 71.42W.

Compatibility Test

Next, let's do the charging compatibility test. 

Original Charger

We used some OPPO chargers during the test.

Through testing, we know that it supports current input greater than 7A, and the original chargers tested can reach a current of more than 7A.

We have compiled the test results into a bar chart. The maximum charging power reaches 74.47W.

Third-party Chargers

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

The voltage of the third-party chargers tested can reach 9V and the current is 1.2-3A.

We have compiled the test results into a bar chart. There are no compatibility issues. Most of the power is concentrated around 25W, and a small number of chargers are around 11W.

Full Charging Test

We use the original 80W charger set to fully charge the OPPO Find X8. And put them into a 25°C (77℉) thermotank throughout the test.

At first, the voltage is about 9.5V. The charging curve can be divided into four parts. When the power is just turned on, the peak power reaches 71W for the first 40 seconds. Then, the power drops to 9V, and the power gradually drops to 31W and 22W in turn. At this time, the voltage drops from 9V to 5V. It takes 1 hour and 8 minutes to be fully charged.

We also turn it into another curve. The original 80W charger set can charge the OPPO Find X8 to 50% in 26 minutes. And it can reach 80% in 45 minutes and 100% in 1 hour and 8 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 35.3℃ (95.54 ℉).

The back is 36.6℃ (97.88 ℉). 

20 minutes Charging

After 20 minutes, the maximum temperature on the front is 36.6℃ (97.88 ℉). 

The back is 37.9℃ (100.22 ℉). 

30 minutes Charging

After 30 minutes, the maximum temperature on the front is 37.7℃ (99.86 ℉).

The back is 38.7℃ (101.66 ℉). 

We also turn it into another curve. During charging, the temperature on the back is slightly higher than that on the front. After 30 minutes, the temperature reaches 38.7°C, and the power is about 22W. It is warm to the touch, and the heat dissipation effect is very good.

Summary of ChargerLAB

OPPO Find X8 Pro is equipped with Dimensity 9400, a 5630mAh battery, and supports 80W wired fast charging and 50W wireless fast charging. It can be charged to 50% in 26 minutes with the original 80W charger and fully charged in about 1 hour and 8 minutes. The charging time is basically the same as that of OPPO Find X8 Pro. The highest temperature during the charging process is only 38.7°C.

It is perfectly compatible with the proprietary protocol of OPPO chargers, and the charging power can reach up to 74.47W. After replacing the cable, the charging power will be greatly affected. It is recommended to use the original cable for a better charging experience. Since it supports the 44W UFCS fast charging protocol, if you choose a supported third-party charger, the charging power can reach about 25W.

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