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Samsung Galaxy A15 5G Battery test

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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 simply 0.33% per night during indoor use. On-the-go results were good, whether browsing social apps, taking photos, or utilizing 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.

Light usage

100 hours

Light usage

Active: 2h30/day

Moderate use

69 hours

Moderate use

Active: 4 hours a day

Intense use

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

Utilizing 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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