Samsung Galaxy S25 Edge Battery Review – Power, Performance & Longevity
Samsung Galaxy S25 Edge Battery Review
Samsung Galaxy S25 Edge Battery Technology – What Sets It Apart?
The Samsung Galaxy S25 Edge comes with a 3900mAh lithium-ion battery manufactured by Samsung itself. This is an important distinction, as many smartphone brands like Vivo, Xiaomi, and Google do not produce their own batteries. Instead, they rely on third-party battery manufacturers such as ATL, LG Energy Solution, or BYD.
When it comes to Apple, while it designs its iPhone batteries, it also outsources manufacturing—commonly to companies like ATL. In contrast, Samsung leverages its own battery division, Samsung SDI, also known as Samsung Battery Making Division, to develop high-performance lithium-ion batteries.
However, Samsung doesn’t sell these batteries to other smartphone brands like it does with its displays. Instead, it supplies batteries to non-smartphone sectors such as electric vehicles (EVs). But why is that?
Why Samsung Doesn’t Sell Its Batteries to Other Brands
There are two primary reasons:
Exclusive Battery Technology
Samsung prefers to keep its proprietary battery advancements exclusive to its own devices, such as the Samsung S25 Edge and Galaxy S25 Edge, to maintain a competitive edge.
The 2016 Galaxy Note 7 Incident
In 2016, Samsung faced a major crisis when several Galaxy Note 7 units exploded due to battery defects. These included excessive compression and welding flaws in batteries made by its own division. The result? A $5.3 billion loss and significant brand damage.
To regain consumer trust, Samsung introduced an 8-point battery safety check process and stopped supplying batteries to other brands. This move ensured that if another company misused Samsung’s batteries, the fallout wouldn’t harm Samsung’s reputation again.
Clearly, Samsung takes battery safety and quality very seriously, especially after this critical learning experience.
Samsung Galaxy S25 Edge Battery Capacity and Series Comparison
The Samsung Galaxy S25 Edge features a 3900mAh battery, which is the smallest among the Galaxy S25 series. For comparison:
- Galaxy S25 comes with a 4000mAh battery.
The compact size of the Samsung S25 Edge explains the slightly smaller battery, as the phone's slim design demands internal space optimization. But what does this mean in real-world usage?
Why Not Use a Silicon-Carbon (Si-C) Battery?
You might wonder why Samsung still uses lithium-ion technology in the Galaxy S25 Edge, while some other brands like Vivo and Realme have adopted Si-C (Silicon-Carbon) batteries.
Let’s break it down:
Si-C batteries feature a silicon-carbon anode, which has 10x the storage capacity of traditional graphite anodes in lithium-ion batteries. This enables greater capacity in smaller battery sizes.
Why Samsung Didn't Use It
Samsung does have access to Si-C battery technology and is actively developing it. However, two key reasons stop it from integrating this tech into smartphones like the Samsung Galaxy S25 Edge:
- High Production Cost – Si-C batteries are expensive to manufacture.
- Reduced Battery Life Cycle – The silicon anode expands up to 300% when charged and contracts when discharged. This repeated expansion and contraction can lead to cracks, negatively impacting battery lifespan.
Due to its cautious approach post-2016, Samsung prefers the stability of lithium-ion for now—especially in mainstream flagship devices like the Samsung edge S25 and Galaxy 25 Series.
Charging Capabilities of Samsung Galaxy S25 Edge
The Samsung Galaxy 25 Edge battery supports:
- 25W wired charging
- 15W wireless charging
- 4.5W reverse wireless charging
Charging Speed Breakdown
- 0% to 30% in 15 minutes
- 0% to 59% in 30 minutes
- 0% to 100% in 1 hour and 4 minutes
This is competitive for its category, making the Samsung Galaxy Edge 25 efficient in everyday charging scenarios.
Samsung Galaxy S25 Edge Battery Life – Real World Testing
Here’s a full breakdown of how the Galaxy S25 Edge battery performs in different usage scenarios:
- General battery life: 21 hours 18 minutes
- Web browsing: 6 hours 41 minutes
- Video playback: 15 hours 11 minutes
- Gaming: 4 hours 54 minutes
- Standby time: 107 hours
These figures show a strong performance, especially considering the compact size of the s25 edge Samsung.
Comparison: Galaxy S25 Edge vs Galaxy S25 Battery Life
If you compare the Galaxy S25 Edge to the standard Galaxy S25 with a 4000mAh battery:
- The Galaxy S25 gives more than 24 hours of general usage.
- It lasts over 9 hours for web browsing.
- It offers 17+ hours of video playback.
- In gaming, it lasts around 5 hours 30 minutes.
- Its standby time is approximately 108 hours.
So yes, if you choose the slimmer Galaxy 25Edge, you may have to accept slightly lower battery life. However, you gain in design, form factor, and portability.
Conclusion: Is the Battery Life of Galaxy S25 Edge Enough?
If you're eyeing the Samsung Galaxy S25 Edge for its sleek and slim design, you should be aware of the slight trade-off in battery life. However, the phone still delivers reliable daily performance with rapid charging speeds and enhanced safety standards.
Samsung's commitment to safety, performance, and premium hardware engineering ensures that the Samsung S25 Edge (also known as Galaxy S25 Edge, and Samsung Galaxy S 25 Edge) remain top-tier choice in 2025’s competitive smartphone market.
Interested in learning more about the Samsung Galaxy S25 Edge?
Check out the links below for detailed reviews on display, design, and performance.
[Galaxy S25 Edge Design Review]
[Galaxy S25 Edge Display Review]
[Galaxy S25 Edge Processor Review]
[Galaxy S25 Edge Camera Review]
Frequently Asked Questions (FAQs)
1. What is the battery capacity of the Samsung Galaxy S25 Edge?
Ans: The Samsung Galaxy S25 Edge features a 3,900mAh battery. While it may seem modest, it’s a solid capacity considering the device’s slim profile.
2. What is the charging speed of the Samsung Galaxy S25 Edge?
Ans: The S25 Edge supports standard (not ultra-fast) charging. It can charge from 0% to 55% in just 30 minutes, which is respectable for typical daily use.
3. What is the battery backup of the Samsung Galaxy S25 Edge?
Ans: In real-world usage, the Galaxy S25 Edge offers an average battery backup of approximately 21 hours. Official Samsung estimates suggest up to 24 hours under ideal conditions.
4. What is the battery type of the Samsung Galaxy S25 Edge?
Ans: The device uses a Li-Ion (Lithium-Ion) battery, which is standard across most smartphones. It does not feature the newer Silicon-Carbon (Si-C) battery technology.
5. How much wattage charger does the Samsung Galaxy S25 Edge support?
Ans: The S25 Edge supports 25W wired charging, 15W wireless charging, and 4.5W reverse wireless charging, offering flexible options for power delivery.
6. Does the Samsung Galaxy S25 Edge support wireless charging?
Ans: Yes, the device supports wireless charging at up to 15W, allowing for convenient cable-free charging.
7. How much time does the Samsung Galaxy S25 Edge take to fully charge?
Ans: Using a 25W wired charger, the Galaxy S25 Edge can fully charge in approximately 1 hour and 4 minutes.