Upgrade for the Samsung Galaxy S26 Edge's battery appears to be a dashed expectation

The tech world is abuzz with anticipation as Samsung prepares to unveil its next flagship smartphone, the Galaxy S26 Edge. According to recent rumours, the S26 Edge could potentially replace the Samsung Galaxy S25 Plus model, resulting in three flagships rather than four for the Galaxy S26 series.

If the rumours hold true, the Galaxy S26 Edge will boast a larger 4,200 mAh battery capacity, a significant upgrade from the current model's 3,900 mAh. This upgrade is expected to provide more time between charges, making the S26 Edge a promising contender for battery life enthusiasts.

The battery technology of the Galaxy S26 Edge is also a focus of recent speculation. Reports suggest that the device will continue to use lithium-ion battery technology, a choice that is common in the industry. However, there have been no indications that the S26 Edge will adopt the more promising, albeit less common, silicon-carbon battery technology.

Unfortunately, no specific details have been provided about the battery life of the Samsung Galaxy S25 FE or how it could potentially compare to the Galaxy S26 Edge. Similarly, there has been no information released about any potential hardware or software optimizations for the S26 Edge's battery life.

In the meantime, the battery life of the Samsung Galaxy S25 Edge has been criticised in reviews, with users reporting less than ideal battery performance. This could potentially be addressed in the S26 Edge, given its larger battery capacity.

The launch of the Samsung Galaxy S26 series, the Galaxy S25 FE, and the Galaxy Tab S11 tablets is expected to take place in January 2026. Until then, tech enthusiasts will continue to speculate and anticipate the features and improvements that Samsung has in store for its latest offerings.

As always, the final decisions regarding the battery technology of the Galaxy S26 Edge will likely be made by Samsung's product development executives and engineering teams. Stay tuned for more updates as we get closer to the launch date.