We subjected the Samsung Galaxy A55 5G to our rigorous SBMARK Battery test suite to measure its performance in terms of battery life, charging and efficiency. In the results of these tests, we will analyze how it performed in a series of tests and in several common use cases.
Overview
Key Specifications:
- Battery capacity: 5000mAh
- 25W charger (not included)
- 6.6-inch OLED display, 1080 x 2340, 120 Hz
- Samsung 1480 (4nm)
- Tested ROM/RAM combination: 128GB + 8GB
Pros
- Impressive external autonomy
- Excellent autonomy for internal use cases
- Low discharge currents when the screen is off and inactive
Against
- 1 hour and 43 minutes needed to reach full charge
- Low autonomy recovered from the 5 minute boost charge
- High discharge currents when listening to music
The Samsung Galaxy A55 5G showed excellent overall battery performance, with notable improvements over its predecessor, the Galaxy A54 5G, in terms of battery life and efficiency.
Equipped with a 5000 mAh battery, the Samsung Galaxy A55’s battery life lasted 57 hours and 13 minutes with moderate use, above average. The battery life in outdoor activities was also really impressive, especially when browsing and navigating social apps. As for individual use cases, the Samsung Galaxy A55 demonstrated above-average battery life when playing video games, making calls, and idling with the screen off. However, the device had battery life issues when watching online videos and listening to music.
The Samsung Galaxy A55 took 1 hour and 24 minutes to fully charge, which is relatively slow compared to other tested devices. Due to the 25W charger’s relatively weak peak charging power, the device only managed 3 hours and 29 minutes of battery life from our 5-minute boost tests, ranking in the bottom half of our database.
The efficiency score of the Samsung Galaxy A55 was average. During the charging process, the charging efficiency was 75.7%, slightly lower than average. However, the efficiency of the adapter was 93.1%, ranking it at the top of our database. The Samsung Galaxy A55’s discharge currents were generally around average, with idle and gaming rates much lower than average. However, the discharge current for listening to music was much higher than average.
Compared to other devices in the High-End segment ($400 – $599), the Samsung Galaxy A55 ranked in the top half of the database, thanks to its excellent battery life performance.
Test summary
Information on SBMARK battery tests: For scoring and analysis in our smartphone battery reviews, SBMARK engineers perform a series of objective tests over a period of one week both indoors and outdoors. (See our introduction and how we test articles for more details on our smartphone battery protocol.)
The following section brings together key elements of our comprehensive testing and analysis performed in 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 | |
|---|---|---|---|---|---|
| Samsung Galaxy A55 5G | 5000mAh | 25W (not included) |
– | AMOLED 1080 x 2340 |
Exynos 1480 |
| Samsung Galaxy A54 5G | 5000mAh | 25W (not included) |
– | AMOLED 1080 x 2400 |
Exynos 1380 |
| Xiaomi Redmi Note 13 Pro Plus 5G | 5000mAh | 120W (not included) |
– | AMOLED 1220 x 2712 |
MediaTek Dimensity 7200 Ultra |
How the autonomy score is composed
The battery life score is made up of three performance subscores: Home/Office, On the Go, and Calibrated Use Cases. Each subscore includes the results of a full range of tests to measure battery life in all types of real-life scenarios.
83h
Light usage
Active: 2h30/day
57 hours
Moderate use
Active: 4 hours a day
35 hours
Intense use
Active: 7 hours a 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 16 hours. -a period of one hour, plus 8 hours of “sleep”. The robot repeats this series of actions every day until the device runs out of power.
In movement
141
Samsung Galaxy M51
Samsung Galaxy M51
Using a smartphone on the move puts a strain on battery life due to additional “hidden” needs, such as the continuous signaling associated with cellular network selection. SBMARK Battery experts take the phone outdoors and perform a series of well-defined activities following the same three-hour travel itinerary (walking, taking the bus, subway…) for each device
Calibrated
126
Samsung Galaxy M51
Samsung Galaxy M51
For this series of tests the smartphone returns to the Faraday cage and our bots repeatedly perform actions related to a specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have consumed at least 5% of their battery charge.
In charge
110
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
How the charging score is made up
Charging is a full part of the overall battery experience. In some situations where battery life is at its lowest, knowing how fast you can charge becomes a concern. The SBMARK Battery Charging Score is made up of two sub-scores, (1) Full Charge and (2) Quick Boost.
Full charge
104
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
Full charge tests evaluate the reliability of the battery charge indicator; measure how long and how much energy the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the user interface, and until actually fully charged.
The charging curves, in wired and wireless mode (if available) show 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 table breaks down the time needed to reach 80%, 100%, and full charge.
Quick push
116
Realme GT Neo 5 (240W)
Realme GT Neo 5 (240W)
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 battery life gain with a 5 minute fast charge.
Efficiency
117
Oppo Reno6 5G
Oppo Reno6 5G
How the efficiency score is composed
The SBMARK Energy Efficiency Score is composed of two sub-scores, charging speed and discharging speed, which combine both data obtained during a typical robot-based usage scenario, calibrated tests and charging evaluation, taking into account battery capacity of the device. SBMARK calculates the annual energy consumption of the product, shown in the graph below, which is representative of the overall efficiency during a charge and when in use.
Charge Up
121
Nubia Red Magic 7 Pro
Nubia Red Magic 7 Pro
The charging subscore is a combination of four factors: the overall efficiency of a full charge, related to the amount of energy needed to fill the battery compared to the energy 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 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
115
Apple iPhone 14 Pro
Apple iPhone 14 Pro
The discharge subscore evaluates how quickly a battery discharges during a test, which is independent of the battery’s capacity. It is the ratio between the capacity of a battery divided by its autonomy. A small capacity battery may have the same battery life as a large capacity battery, indicating that the device is well optimized, with a low discharge rate.
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