Samsung's new silicon-carbon batteries in Galaxy Z Fold 8 won't last as long
Samsung has switched to silicon-carbon batteries in the Galaxy Z Fold 8 series, but their lifespan is reduced to 1,200~ charging cycles before hitting 80% capacity, compared to 2,000~ cycles in the previous generation.
Intelligence analysis by Llama

Samsung's new silicon-carbon batteries in the Galaxy Z Fold 8 series have a reduced lifespan compared to the previous generation, with a 1,200~ charging cycle rating before hitting 80% capacity.
Imagine you have a toy car that runs on batteries. The batteries in the new Galaxy Z Fold 8 series are a bit different from the old ones, and they don't last as long. This means that the phone's battery life might not be as good as it was before. But don't worry, Samsung is still working on making these new batteries better.
Analysis
A Step Back in Battery Life
Samsung's decision to switch to silicon-carbon batteries in the Galaxy Z Fold 8 series has been met with some skepticism, and for good reason. The new batteries have a reduced lifespan compared to the previous generation, with a 1,200~ charging cycle rating before hitting 80% capacity. This is a significant drop from the 2,000~ cycles that the Galaxy Z Fold 7 and other last-gen Samsung flagships were rated for.
The reason for this drop in lifespan is likely due to the inherent properties of silicon-carbon batteries. These batteries tend to enlarge in size later into their lifespans, which can lead to a reduction in capacity. This is a trade-off that Samsung has made in order to achieve a higher capacity without requiring thicker devices.
Despite this, the capacity upgrade gives Samsung's entire lineup much longer battery life compared to last year, and a higher "A" rating with the EPREL. However, it's hard to beat the actual physics of this new chemistry.
Why Silicon-Carbon?
Samsung has been working on developing silicon-carbon batteries for some time now, and it's clear that they see this technology as a key part of their future. The company has said that safety and longevity were both key pillars of how it designed these batteries, and it's clear that they are committed to making this technology work.
The Road Ahead
The reduced lifespan of Samsung's new silicon-carbon batteries in the Galaxy Z Fold 8 series is a notable change from the previous generation, and may impact user experience and battery life. However, it's worth noting that Samsung is still beating out Google Pixel and iPhone in regards to this 80% longevity metric, as those devices only promise 1,000~ cycles as Android Authority points out.
In conclusion, the switch to silicon-carbon batteries in the Galaxy Z Fold 8 series is a notable change from the previous generation, and may impact user experience and battery life. However, it's worth noting that Samsung is still committed to making this technology work, and is working to improve the lifespan of these batteries.
Key points
- Samsung has switched to silicon-carbon batteries in the Galaxy Z Fold 8 series
- The new batteries have a reduced lifespan compared to the previous generation
- The capacity upgrade gives Samsung's entire lineup much longer battery life compared to last year
- Samsung is still beating out Google Pixel and iPhone in regards to this 80% longevity metric
If Samsung continues to work on improving the lifespan of their silicon-carbon batteries, it's possible that future devices will have even better battery life. Additionally, the company's commitment to safety and longevity is a positive sign for the future of this technology.
The reduced lifespan of Samsung's new silicon-carbon batteries in the Galaxy Z Fold 8 series may impact user experience and battery life. Additionally, the trade-off between capacity and lifespan may be a concern for some users.


