Xiaomi Mi Note 3 Review

4 October 2017, 17:17:19

Xiaomi Mi Note 3 Review
Buy a Xiaomi Mi Note 3 at a promotional price here.

Battery

As an integral part of MIUI, the Security application offers advanced battery settings. When you open the app and click the Battery service, you get access to information about its status and suggestions for its optimization. It also includes a Battery saver, Battery usage data according to apps and hardware, and an App battery saver, which allows you to manage individually every application on your device in terms of saving power. The battery management settings include drain and heating notifications, toggles for clearing cache and turning off mobile data when the device is locked, the Schedule power on & off feature, battery indicator settings. In addition, from the Settings, you can access the Battery & performance menu. It has shortcuts to the battery features on the Security application and several additional ones, including System animations settings and Scenario power saving policies.
Xiaomi Mi Note 3 is equipped with a 3500 mAh Li-Ion-Pol battery from SCUD that supports Qualcomm Quick Charge 3.0 and arrives with a 5V/3A--9V/2A--12V/1.5A fast charger (US plug). All battery tests we run on the devices we review are developed by us and performed with the screen of the device being calibrated to 200 cd/m2. Battery saving features are disabled. The 3500 mAh battery of our review unit behaves in a similar fashion to the one of the Xiaomi Mi MIX 2. It takes 1 hour and 28 minutes to charge it in full from 0%. The process begins quickly and gains speed until the capacity reaches 70% after 42minutes. Then its speed decreases a bit. Eight minutes are needed to reach 80%, 11 minutes - to reach 90%, and 27 minutes - to 100% as the process slows down progressively. The battery temperature starts from 30°C and in 30 minutes reaches 39°C, which is maintained for 22 minutes and then the temperature starts to decrease reaching 28°C at the end. Our intensive browsing test manages to deplete the battery of our review unit in 9 hours and 25 minutes, which is an excellent result. The process starts slowly and the capacity starts dropping down only after 30 minutes have passed. The battery temperature is within healthy limits the whole time. It begins with 25°C, reaches 32°C in 40 minutes and maintains this level until the end. The video test for battery life uses a 1080p video at 30 fps with a ~20Mbps rate is used. The 3500 mAh battery of our review unit discharged from 100% to 0% in 13 hours and 50 minutes, which is an excellent result. The process maintains one and the same speed from the start until the end. The battery temperature remains quite low throughout the whole process. It starts from 26°C and in 20 minutes reaches 30°C, which is maintained until the end. We have also run a second video test but using a 4K video at 30 fps with a ~55Mbps rate. The battery of our review unit discharges from 100% to 0% in 10 hours and 12 minutes. The discharging pattern is the same as the one of the previous test. The battery temperature is quite stable as well. It starts from 26°C and after an hour reaches 32°C, which is maintained until the end. For the 3D Graphics/Gaming test, the Epic Citadel's tech demo in its Guided Tour mode is used. The 3500 mAh battery of our review unit shows an excellent result of 9 hours, which is very close to the one of the browsing test. This leads us to think that the chipset is optimized to perform well under such workloads. We observe the same effect with the battery of the Xiaomi Mi MIX 2 - the results from the 3D Graphics/Gaming test is close to the one from the browsing test. The discharging process is even from the start until the end. The battery does not get heated a lot at all. Its temperature starts from 28°C and gradually rises to 33°C. This level is maintained almost until at the end. 10 minutes before the battery is depleted completely, its temperature rises to 35°C.
The above photos of our Xiaomi Mi Note 3 review unit are taken with a FLIR thermal camera. The left photo shows the device's temperature during charging. The hottest areas of the smartphone are the top left and top central parts, where the peak temperature measures 35°C (the brightest spots). The second photo depicts the device's temperature during our 3D battery life test. In this case, the device gets warm in the upper central part of its body and in the area of the USB Type-C port, where the peak temperature is measured - 35.2°C.

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