It's been nearly 2 years since Samsung introduced the Galaxy M51, receiving positive feedback from users. This smartphone boasts a youthful design, impressive specs for its price range with Snapdragon 730, and a triple camera setup delivering fairly impressive photo quality. Additionally, the Galaxy M51 comes with a massive 7,000 mAh battery providing usage time of up to 12 hours. Let's evaluate the Galaxy M51 battery after 2 years for a detailed analysis!

For more information:
- Is it worth buying Galaxy M51? Besides the 7,000 mAh battery, what else makes it so HOT?
- Hands-on with Galaxy M51: 7,000 mAh battery, Snapdragon 730, priced at only 6.29 million VND
- Review of Galaxy M51 after 2 years: Good performance, decent camera, extremely durable battery
Galaxy M51 boasts impressive specs for its price range with Snapdragon 730, 7,000 mAh battery
First, let's take a look at the specifications of Galaxy M51 for easy understanding:
- Display: 6.7-inch size, Super AMOLED Plus panel, Full HD+ resolution (1,080 x 2,400 pixels).
- CPU: Qualcomm Snapdragon 730.
- RAM: 8 GB.
- Internal storage: 128 GB.
- Rear camera: 64 MP + 12 MP + 5 MP + 5 MP.
- Front camera: 32 MP.
- Battery: 7,000 mAh, supports 25 W fast charging.
- Operating system: Android 12 (One UI 4.1 interface).

Galaxy M51 is equipped with the Qualcomm Snapdragon 730 chipset. This is a processor commonly found in mid-range devices at the time of its release. The performance of this chipset has been positively evaluated up to the present. If you're interested in the performance of Galaxy M51 after 2 years, you can refer to the article below.
For more information: Assessment of Samsung Galaxy M51 performance after 2 years: Gaming still smooth, battery incredibly robust
Additionally, Galaxy M51 also features a massive 7,000 mAh battery, supporting 25 W fast charging. As of now, very few manufacturers dare to equip their phones with such a massive battery capacity. So, after 2 years, is the battery life still good? To find the answer, let's go through the battery test articles below!
Galaxy M51 battery can still last for over 12 hours continuously after 2 years
In this section, I'll measure the battery usage time of Galaxy M51 using a battery test according to the standard of Mytour and the specific conditions of this test are as follows:
- Experience 4 rotating tasks including: Playing Liên Quân Mobile (graphics settings as shown below), watching YouTube, browsing Facebook, and using Chrome.

- Each task lasts for 1 hour.
- SIM card inserted.
- Screen brightness set to 100%.
- Wired headphones plugged in with volume set to 100%.
- Wi-Fi enabled and receiving social media notifications.
- Battery saving mode, adaptive screen, GPS, and Bluetooth turned off.
- Discharge from 100% to 0%.
Here are the results:

Therefore, after the rigorous test I conducted, Galaxy M51 lasted for 12 hours and 10 minutes. This result is extremely impressive as the battery life of Galaxy M51 far exceeds that of most Android devices today. For basic tasks, Galaxy M51 only consumes 7-9% battery after 1 hour of usage, and with games like Liên Quân, the device only consumes slightly more.

The numbers above demonstrate the excellent optimization of Samsung on the Galaxy M51, especially on Android 12 (One UI 4.1) version. For comparison, below are the battery usage test results of Galaxy M51 when the device is running Android 11.

In reality, under normal usage conditions, I believe the battery life you'll experience on the Galaxy M51 will be even higher than the numbers mentioned above because my test conditions were quite heavy with the screen brightness set to 100%. Especially if you're considering upgrading to the One UI 4.1 version, I think it's highly recommended as the device's battery life will be further improved.

Due to its large battery capacity, Galaxy M51 is also equipped with 25 W fast charging to help shorten the charging time for users. With fast charging time (nearly 2 hours as announced by the manufacturer), I can quickly charge the phone whenever needed. In reality, I rarely need to recharge the phone during the day because I have a habit of charging the battery before going to bed so that the phone will be ready to use in the morning.
Galaxy M51 battery lasts for over 11 hours of continuous YouTube viewing after 2 years
In addition to the battery test (according to the standard of TGDĐ) above, I also measured the battery usage time of Galaxy M51 through common tasks. In this test, I will use familiar applications such as Facebook, Messenger, TikTok, Chrome, and YouTube under the following specific conditions:
- Using a single application until the device runs out of battery (from 100% to 0%)
- Screen brightness set to 100%.
- Wired headphones plugged in with volume set to 100%.
- Wi-Fi enabled and receiving social media notifications.
- Battery saving mode, adaptive screen, GPS, and Bluetooth turned off.

Here are the results:
- Chrome: 7 hours 42 minutes.
- Facebook: 8 hours 33 minutes.
- TikTok: 10 hours 14 minutes.
- YouTube: 11 hours 12 minutes.
- Messenger: 13 hours 33 minutes.

Based on the above test, Galaxy M51's battery life after 2 years remains extremely good. Among the tested apps, Messenger achieved the best usage time with over 13 and a half hours. This figure easily meets the daily usage needs of most users, and can even reach 1.5-2 days if your usage isn't too heavy. As for Chrome, Galaxy M51 only achieved nearly 8 hours of continuous usage, indicating that this app may not be optimized well for the device.

So after 2 years, how long can Galaxy M51's battery last during continuous gaming?
To answer the question above, I played 4 games: Liên Quân Mobile, PUBG Mobile, Free Fire, and Play Together to see if Galaxy M51 after 2 years still offers good continuous gaming time. First, I'll share the conditions of this test with you:
- Playing only one game until the device runs out of battery (from 100% to 0%)
- Screen brightness set to 100%.
- Wired headphones plugged in with volume set to 100%.
- Wi-Fi enabled and receiving social media notifications.
- Battery saving mode, adaptive screen, GPS, and Bluetooth turned off.
- Game mode activated to optimize performance.

Here are the results:

- Call Of Duty Mobile: 7 hours 42 minutes.
- PUBG Mobile: 9 hours 11 minutes.
- Play Together: 9 hours 20 minutes.
- Liên Quân Mobile: 10 hours 42 minutes.
The average result achieved by Galaxy M51 is nearly 9 hours for each game. I consider this figure to be very good, and very few competitors in the market can achieve this usage time. Among them, Liên Quân Mobile is the game with the best battery usage time, reaching 10 hours 42 minutes, while the battery usage time for playing Call Of Duty is only 7 hours 42 minutes. This is understandable because this game requires high hardware performance to provide the best experience, leading to the device heating up quickly and consuming more battery.
How much does Galaxy M51 cost? Is it worth buying?
Currently, Samsung Galaxy M51 is back on sale at Mytour with a price of 8.99 million VND (price may vary depending on the time and promotions). I believe this is a smartphone worth considering for users interested in battery life. Thanks to its massive 7,000mAh battery, Galaxy M51 after 2 years can easily last 1-2 days with basic tasks and nearly 11 hours of Liên Quân Mobile gaming.

What do you think about the battery of Galaxy M51? Leave your comments below for me and everyone to know! Thank you for reading my article.
Also, at Mytour, there is currently a discount program for some products, including Samsung Galaxy M51. If you're interested, click the orange button below to not miss out on the hottest deals this June.
JUNE PROMOTION PROGRAM
Check out: Update on Samsung Galaxy M51 prices, returning with amazing promotions