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Xiaomi Redmi Note 12 5G
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Xiaomi Redmi Note 12 5G Battery test

We put the Xiaomi Redmi Note 12 5G through our rigorous DXOMARK Battery test suite to measure its performance in autonomy, charging and efficiency. In these test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key specifications:

  • Battery capacity: 5000 mAh
  • 33W charger (included)
  • 6.67-inch, 1080 x 2400, 120 Hz, OLED display
  • Qualcomm Snapdragon 4 Gen 1 (6 nm)
  • Tested ROM / RAM combination: 128 GB + 4 GB

Scoring

Sub-scores and attributes included in the calculations of the global score.

Xiaomi Redmi Note 12 5G
Xiaomi Redmi Note 12 5G
132
battery
139
Autonomy
146

221

126

195

133

198

120
Charging
112

224

129

212

136

205

137

194

Key performances

Charging Time
2 days 19h
Battery life
Charging Time
0h44
80% Charging time
Charging Time
1h12
Full charging time
Quick Boost
4h34 autonomy
after 5-minute charge

Pros

  • Very good autonomy in moderate use
  • Good autonomy when watching videos and streaming music
  • Only 1% lost per night on average
  • Low discharge currents in almost all use cases

Cons

  • High discharge currents when idling with the screen on
  • Inaccurate battery gauge, with 18% of real capacity shown as 20%

The Xiaomi Redmi Note 12 5G’s battery performance placed in the upper part of our entire database. The Redmi Note 12 5G, equipped with an newer generation Qualcomm Snapdragon chip, outperformed its predecessor, the Xiaomi Redmi Note 11, especially in autonomy and efficiency, even though the battery was the same.

The Redmi Note 12 5G’s autonomy was solid, with the battery lasting most than 2.5 days when used moderately and with a power loss of an average 1% per night. The results when testing individual use cases, such as watching videos, streaming music or gaming, were also good. The device’s on-the-go autonomy was decent, but slightly below average when using the navigation app.

The charging experiences were a bit mixed. The time to fully charge the battery was fast, taking 1 hour and 12 minutes, but the autonomy recovered after a quick 5-minute charge came in slightly below average.

The device’s charge efficiency was decent, but the adapter’s efficiency was excellent, showing low residual power drained whether the fully-charged device was plugged in or not. The battery’s discharge currents were low in the majority of our use cases, especially when streaming videos or music and when calling on the go, meaning that the device is well-optimized.

Although the Xiaomi Redmi Note 12 5G did well against all the phones in our database, when it was compared to devices from the same Advanced price range ($200-$399), its results were slightly above average. Its excellent efficiency was offset by the average autonomy and charging experiences for this segment.

Test Summary

About DXOMARK Battery tests: For scoring and analysis in our smartphone battery reviews, DXOMARK engineers perform a variety of objective tests over a week-long period both indoors and outdoors. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)

The following section gathers key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Detailed performance evaluations under the form of reports are available upon request. Do not hesitate to contact us.

Battery Charger Wireless Display Processor
Xiaomi Redmi Note 12 5G 5000mAh 33W
(included)
- AMOLED
1080 x 2400
Qualcomm Snapdragon 4 Gen 1
Xiaomi Redmi Note 11 5000mAh 33W
(included)
- AMOLED
1080 x 2400
Qualcomm Snapdragon 680 4G
Oppo A78 5G 5000mAh 33W
(included)
- LCD
720 x 1612
Mediatek Dimensity 700

Autonomy

139

Xiaomi Redmi Note 12 5G

197

Honor X9c
How Autonomy score is composed

Autonomy score is composed of three performance sub-scores: Home / Office, On the go, and Calibrated use cases. Each sub-score comprises the results of a comprehensive range of tests for measuring autonomy in all kinds of real-life scenarios.

Light Usage
96h
Light Usage
Active: 2h30/day
Moderate Usage
67h
Moderate Usage
Active: 4h/day
Intense Usage
42h
Intense Usage
Active: 7h/day

Home/Office

146

Xiaomi Redmi Note 12 5G

221

Honor X7b

A robot housed in a Faraday cage performs a set of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, video streaming, etc. — 4 hours of active use over the course of a 16-hour period, plus 8 hours of “sleep.” The robot repeats this set of actions every day until the device runs out of power.

Typical Usage Scenario discharge curves

On the go

126

Xiaomi Redmi Note 12 5G

195

Samsung Galaxy M51

Using a smartphone on the go takes a toll on autonomy because of extra “hidden” demands, such as the continuous signaling associated with cellphone network selection, for example. DXOMARK Battery experts take the phone outdoors and perform a precisely defined set of activities while following the same three-hour travel itinerary (walking, taking the bus, the subway…) for each device

Autonomy for on the go use cases (full charge)

Calibrated

133

Xiaomi Redmi Note 12 5G

198

Samsung Galaxy M51

For this series of tests, the smartphone returns to the Faraday cage and our robots repeatedly perform actions linked to one specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have expended at least 5% of their battery power.

Autonomy for calibrated use cases (full charge)

Charging

120

Xiaomi Redmi Note 12 5G

218

Realme GT Neo 5 (240W)
How Charging score is composed

Charging is fully part of the overall battery experience. In some situations where autonomy is at a minimum, knowing how fast you can charge becomes a concern. The DXOMARK Battery charging score is composed of two sub-scores, (1) Full charge and (2) Quick boost.

Wired
Wired
56%
in 30 min
0h44
0 - 80%
1h12
Full charge

Full charge

112

Xiaomi Redmi Note 12 5G

224

Realme GT Neo 5 (240W)

Full charge tests assess the reliability of the battery power gauge; measure how long and how much power the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the UI, and until an actual full charge.

Power consumption and battery level during full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Time to full charge
The time to full charge chart breaks down the necessary time to reach 80%, 100% and full charge.

Quick boost

129

Xiaomi Redmi Note 12 5G

212

Realme GT Neo 5 (240W)

With the phone at different charge levels (20%, 40%, 60%, 80%), Quick boost tests measure the amount of charge the battery receives after being plugged in for 5 minutes. The chart here compares the average autonomy gain from a quick 5-minute charge.

Average autonomy gain for a 5 minute charge (wired)

Efficiency

137

Xiaomi Redmi Note 12 5G

154

Oppo Reno6 5G
How Efficiency score is composed

The DXOMARK power efficiency score consists of two sub-scores, Charge up and Discharge rate, both of which combine data obtained during robot-based typical usage scenario, calibrated tests and charging evaluation, taking into consideration the device’s battery capacity. DXOMARK calculate the annual power consumption of the product, shown on below graph, which is representative of the overall efficiency during a charge and when in use.

Annual Consumption Xiaomi Redmi Note 12 5G
3.7 kWh
Efficient
Good
Bad
Inefficient

Charge up

136

Xiaomi Redmi Note 12 5G

205

Nubia RedMagic 7 Pro

The charge up sub-score is a combination of four factors: the overall efficiency of a full charge, related to how much energy you need to fill up the battery compared to the energy that the battery can provide; the efficiency of the travel adapter when it comes to transferring power from an outlet to your phone; the residual consumption when your phone is fully charged and still plugged into the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The chart here below shows the overall efficiency of a full charge in %.

Overall charge efficiency

Discharge

137

Xiaomi Redmi Note 12 5G

194

Apple iPhone 14 Pro

The discharge subscore rates the speed of a battery’s discharge during a test, which is independent of the battery’s capacity. It is the ratio of a battery’s capacity divided by its autonomy. A small-capacity battery could have the same autonomy as a large-capacity battery, indicating that the device is well-optimized, with a low discharge rate.

Average discharge current

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