We subjected the Xiaomi Redmi Note 12 5G to our rigorous SBMARK Battery test suite to measure its performance in terms of autonomy, charging and efficiency. In these test results, we’ll analyze how it performed in a variety of tests and several common use cases.
Overview
Key Specifications:
- Battery Capacity: 5000mAh
- 33W charger (included)
- 6.67-inch, 1080 x 2400, 120Hz OLED display
- Qualcomm Snapdragon 4 Gen 1 (6nm)
- ROM / RAM combination tested: 128GB + 4GB
Pros
- Very good battery life with moderate use
- Good battery life when watching videos and streaming music
- Only 1% lost on average per night
- Low discharge currents in almost all use cases
Against
- High discharge currents at idle with the screen on
- Inaccurate battery gauge, with 18% of real capacity shown as 20%
The battery performance of the Xiaomi Redmi Note 12 5G ranks at the top of our entire database. The Redmi Note 12 5G, equipped with a new generation Qualcomm Snapdragon chip, surpassed its predecessor, the Xiaomi Redmi Note 11, especially in terms of autonomy and efficiency, even if the battery was the same.
The runtime of the Redmi Note 12 5G was solid, with the battery lasting more than 2.5 days when used moderately and with an average power loss of 1% per night. Results when testing individual use cases, such as watching videos, streaming music, or playing games, were also good. The device’s on-the-go range was decent, but slightly below average when using the navigation app.
Charging experiences have been a bit mixed. The time to fully charge the battery was quick, taking 1 hour and 12 minutes, but the range recovered after a 5-minute quick charge was slightly below average.
The charging efficiency of the device was decent, but the efficiency of the adapter was excellent, showing low remaining power consumed whether the fully charged device was plugged in or not. Battery discharge currents were low in most of our use cases, especially when streaming video or music and making calls on the go, meaning the device is well optimized.
While the Xiaomi Redmi Note 12 5G did well Cons all phones in our database, when compared to devices in the same Advanced price range ($200-$399), its results were slightly above average. Its excellent efficiency was compensated by the average range and charging experiences for this segment.
Trial summary
Learn about SBMARK battery tests: For scoring and analysis in our smartphone battery reviews, SBMARK engineers conduct a series of objective tests over a one-week period both indoors and outdoors. (See our introduction and how we test articles for more details on our smartphone’s battery protocol.)
The following section compiles the key elements of our extensive testing and analysis performed in the SBMARK laboratories. Detailed performance evaluations in the form of reports are available upon request. Do not hesitate to contact us.
| Drums | Battery charger | wireless | Screen | Processor | |
|---|---|---|---|---|---|
| 0mAh | 0W (not included) |
– | x | ||
| Xiaomi Redmi Note 11 | 5000mAh | 33W (included) |
– | AMOLED 1080×2400 |
Qualcomm Snapdragon 680 4G |
| Oppo A78 5G | 5000mAh | 33W (included) |
– | LCDs 720×1612 |
Mediatek Size 700 |
How the Autonomy score is composed
The Battery Life Score is composed of three performance sub-scores: Home/Office, On the Go, and Calibrated Use Cases. Each subscore includes results from a full range of tests to measure range in all kinds of real-life scenarios.
96 hours
Light use
Active: 2h30/day
67 hours
Moderate use
Active: 4h/day
42 hours
Intensive use
Active: 7h/day
Home office
A robot housed in a Faraday cage performs a series of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, streaming video, etc. — 4 hours of active use over the course of a 16 hour period, plus 8 hours of “sleep”. The robot repeats this series of actions every day until the device runs out.
In movement
126
Samsung Galaxy M51
Samsung Galaxy M51
Using a smartphone on the go has a negative impact on range due to additional “hidden” demands, such as continuous signaling associated with cellular network selection. SBMARK Battery experts take the phone outdoors and perform a series of precisely defined activities following the same three-hour travel itinerary (walking, taking the bus, the subway…) for each device
Calibrated
133
Samsung Galaxy M51
Samsung Galaxy M51
For this series of tests, the smartphone returns to the Faraday cage and to ours bots repeatedly perform actions related to a specific use case (like gaming, video streaming, etc.) at a time. Starting with an 80% charge, all devices are tested until they have used at least 5% battery power.
Reload
120
Realme GTNeo 3
Realme GTNeo 3
How the recharge score is composed
Charging is fully part of the overall battery experience. In some situations where range is at its lowest, knowing how fast you can charge becomes a concern. The SBMARK Battery Charging Score consists of two subscores, (1) Full Charge and (2) Fast Boost.
Charge complete
112
Black Shark 5Pro
Black Shark 5Pro
The full charge tests evaluate the reliability of the battery charge indicator; measure how long and how much energy it takes for the battery to charge from zero to 80% capacity, from 80 to 100% as shown by the user interface, and to an actual full charge.
The charging curves, in wired and wireless mode (if available) showing the evolution of the battery level indicator as well as the energy consumption in watts during the charging phases towards full capacity.
The time to full charge graph breaks down the time required to reach 80%, 100% and full charge.
Quick push
129
Realme GTNeo 3
Realme GTNeo 3
With the phone at different charge levels (20%, 40%, 60%, 80%), the Quick Boost tests measure how much charge the battery receives after being plugged in for 5 minutes. The graph here compares the average range gain with a 5-minute quick charge.
Efficiency
137
Oppo Reno6 5G
Oppo Reno6 5G
How the efficiency score is composed
The SBMARK Energy Efficiency Score consists of two subscores, charge rate and discharge rate, which combine both data obtained during a typical robot-based usage scenario, calibrated testing and charge rating, taking into consideration battery capacity of the device. SBMARK calculates the product’s annual energy consumption, shown in the graph below, which is representative of overall efficiency during a charge and when in use.
Charge Up
136
Nubia RedMagic 7 Pro
Nubia RedMagic 7 Pro
The secondary charge score is a combination of four factors: the overall efficiency of a full charge, relating to the amount of energy required to recharge the battery compared to the energy the battery can supply; the efficiency of the travel adapter when it comes to transferring power from an outlet to your phone; the remaining consumption when the phone is fully charged and still connected to the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The graph below shows the overall efficiency of a full charge in %.
Discharge
137
Apple iPhone 14 Pro
Apple iPhone 14 Pro
The sub-discharge score evaluates how quickly a battery discharges during a test, which is independent of battery capacity. It is the ratio between the capacity of a battery and its autonomy. A small capacity battery may have the same run time as a large capacity battery, indicating that the device is well optimized, with a low discharge rate.
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