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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
Key performances
These key points are derived from the lab measurements during testing and do not figure into the overall score. The lab measurements, however, are used for the overall score.
44th
17th
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
Xiaomi Redmi Note 12 5G
195
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.
Battery Life (moderate)
30th
Battery Life (moderate)
16th
Home/Office
Xiaomi Redmi Note 12 5G
221
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.
On the go
Xiaomi Redmi Note 12 5G
195
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
Calibrated
Xiaomi Redmi Note 12 5G
198
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.
Charging
Xiaomi Redmi Note 12 5G
218
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.
Full charge
Xiaomi Redmi Note 12 5G
224
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.
Charging Time 0-80%
81st
Charging Time 0-80%
13th
Quick boost
Xiaomi Redmi Note 12 5G
212
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.
Efficiency
Xiaomi Redmi Note 12 5G
154
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.
Charge up
Xiaomi Redmi Note 12 5G
205
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 %.
Discharge
Xiaomi Redmi Note 12 5G
194
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.
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