• Daniel Chaparro

Xiaomi Redmi Note 9T 5G - Battery Performance Score

Updated: Nov 4


Battery Capacity mAh: 5000

Smartphone Battery Performance: Ranking #9

In the Top 10 for Battery Performance within the

Mid Tier Ranking Table

Battery Life Testing Report – March 2021


5G has arrived into the Xiaomi Redmi family with the Note 9T. As usual, Xiaomi keeps the balance between the price and features, the Note 9T is the cheapest device offered by the brand so far. The device is powered by a 5000mAh battery assuring enough autonomy to end-users.

Release Date April 2021

Product Features and Specification

  • Design: Texture unibody polycarbonate back

  • Camera: Wide (main) 48 MP, f/1.8, 26mm (1/2.0”, 0,8µm), PDAF

Macro: 2 MP, f/2.4

Depth: 2 MP f/2.4

  • Battery: 5000 mAh (18W fast charge)

  • Display: 6.53"

  • Size: 161.2 x 77.3 x 9.1 mm

  • Weight: 199g

  • Memory: 64/128GB RAM: 4GB

  • Chipset: MediaTek Dimensity 800U 5G (7nm)

  • Android: Android 10, MIUI 12.

  • Software Version: QP1A.190711.020

Battery Performance


The Xiaomi Redmi Note 9T 5G is a Mid Tier Smartphone within the ViserMark ranking classification (between 200 and 500 EURO) offering 5G connectivity at a very competitive price. It Is equipped with the 5G Dimensity 800U MediaTek chipset, guaranteeing a good balance between high CPU speeds and efficiency and offering to users the possibility of having a dual 5G SIM in the device. Xiaomi has chosen a 5000 mAh battery with an 18W fast charge option (33% in 30 mins based on the manufacturer specifications).

The overall Battery Performance Score is now a global score taking calculations from Battery Life, Power Efficiency and Charging Times.

From Xiaomi Redmi Note 9T 5G test results, we have given this Smartphone a ViserMark score of 55. The Battery Performance Label indicates that this is a mid-way score, and ranked in 9th of the best Battery Performance Smartphones as tested by SmartViser.

Testing Results

BATTERY LIFE - Days of Use

The Xiaomi Redmi Note 9T 5G Smartphone has a battery life autonomy of around 61 hours when tested using our ViserMark test protocol.

This Smartphone obtained a Battery Life score of 2.5 Days of Use. The average ViserMark Battery Performance score of Mid Tier smartphones is 2 Days, so this positions the Xiaomi Redmi Note 9T 5G Smartphone higher than average within the ViserMark raking table.

At the same time, compared with other devices with a 5000mAh battery, the device performance stands in a similar range with the Moto G8 Power achieving a performance score of 53 and the Oppo A5 a score of 51 and finally the Realme C11 with a slightly lower battery performance score of 50.

CHARGING TIME - Hours and Minutes

The charging time was recorded at 1 hour and 50 minutes.

Test Graphics

There are a number of power-efficient processors, within today's Smartphones, that are able to cope with the growing number of new applications and can support high-resolution displays without compromising battery life.

Power Efficiency is calculated using Battery Life and Battery Capacity. This is expressed in “Leaves" and reflects a rating between 1 being least and 5 being the most power-efficient.

The Xiaomi Redmi Note 9T 5G Smartphone achieved an overall Power Efficiency Score of 2 and therefore makes it into the higher ranks of the most Power Efficiency Smartphones within the Mid Tier.


To conclude, the Xiaomi Redmi Note 9T 5G achieved an overall Battery Performance Score of 55. This positions this smartphone within the Top 10 of most devices within this price range. With an offering 2.5 Days of Usage through the ViserMark test protocol, it is a strong competitor.

ViserMark tests are performed with the strictest protocol in a controlled environment to ensure repetition and consistency powered and automated by SmartViser’s test automation solution viSer. The automation test includes a variety of user actions from calls to social media and periods of standby times.