We subjected the Samsung Galaxy A15 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)
- 6.5 inch OLED display, 1080 x 2340, 90 Hz
- MediaTek Dimensity 6100+ (6nm)
- Tested ROM/RAM combination: 128GB + 4GB
Pros
- Excellent battery life when watching videos over WiFi or in offline conditions
- Impressive autonomy when used in outdoor conditions
- Extremely low residual power consumption when the device is unplugged
- Low discharge currents at night
Against
- High discharge currents when listening to music and watching videos in 4G conditions
- Not much battery life recovered from a 5 minute charge
- It takes more than 1 hour and 40 minutes to fully charge the battery
The Samsung Galaxy A15 5G delivered a decent performance in our battery experience test, showing improvements over its predecessor, the Galaxy A14 5G.
With moderate use, the Galaxy A15 5G’s battery life lasted nearly three days, placing it in the top half of our database. The device showed minimal battery consumption of just 0.33% per night during indoor use. On-the-go results were good, whether browsing social apps, taking photos, or using navigation. Furthermore, it demonstrated excellent battery life for activities such as video streaming over Wi-Fi, gaming, idle and calls. However, battery life was below average when watching videos and listening to music on 4G.
The Samsung Galaxy A15 5G supports charging at up to 25W, achieving a full charge in less than 2 hours, which is relatively long compared to other devices we’ve tested. The lower power of the charger resulted in only 3.5 hours of battery life on a 5-minute quick charge, which is lower than average in our database.
The device’s efficiency score is generally solid. Overall charging efficiency tops 78%, placing it in the top half of our database, while adapter efficiency is average. Residual power consumption is very low regardless of whether the device is plugged in or not. Discharge currents are generally lower than average, except when listening to music and watching videos in 4G conditions.
Among devices in the Essential segment (< $199), the Samsung Galaxy A15 5G ranks among the best, thanks to its excellent battery life and decent efficiency 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 A15 5G | 5000mAh | 25W (not included) |
– | AMOLED 1080 x 2340 |
MediaTek Helio G99 |
| Samsung Galaxy A15 LTE | 5000mAh | 25W (not included) |
– | AMOLED 1080 x 2340 |
MediaTek Helio G99 |
| Samsung Galaxy A14 5G | 5000mAh | 15W (not included) |
– | LCD screen 1080 x 2408 |
MediaTek Dimensity 700 |
How the autonomy score is made up
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.
100 hours
Light usage
Active: 2h30/day
69 hours
Moderate use
Active: 4 hours a day
43 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
118
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
109
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
102
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
123
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
135
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
118
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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