Samsung tests 20,000 mAh batteries for its next Galaxy

Samsung Galaxy phones could take a significant leap forward in the coming years.

While the Galaxy S26 maintains good sales, signs are beginning to appear that the brand is seeking a stronger evolution in key components such as the battery.

According to a leak released by Schrödinger Intel, the company is already working on a new technology that could completely change the autonomy of its devices in future generations.

Samsung's commitment: silicon-carbon batteries The focus is on silicon-carbon

batteries, a technology that began to gain ground in 2025

and is already being used by some Chinese manufacturers.

This type of battery achieves a higher energy density, which translates into more capacity without increasing the size of the device.

Instead of making larger cell phones, the idea is to maintain the design and improve battery life, one of the most questioned points in the latest models.

Prototypes with up to 20,000 mAh

According to the leak, Samsung already has several prototypes under development with capacities ranging from 12,000 mAh to an astonishing 20,000 mAh

.

These models use dual cell systems. For example, a 12,000 mAh battery combines two internal modules to achieve that total capacity

.

The device that could debut this technology would be the Galaxy S27 Ultra, although there is still no

official confirmation.

What changes compared to current batteries

Nowadays, most smartphones use lithium-ion batteries, which have limitations in energy density. The new silicon-carbon batteries allow:

• Higher capacity in the same space

• Better internal use

• More autonomy without modifying the design

Some brands such as OPPO and Xiaomi have already advanced on this path, although

still with technical challenges.

The problems that Samsung has yet to solve

The development is not closed. According to the leaked information, some prototypes fail after 960 charge cycles, far from the target of 1,500

cycles.

This affects lifespan and stability, two key factors for mass production. For this reason, the company is working to improve both the architecture and the battery management software.

A change that also depends on regulations

Another point that can influence is regulation in different markets. In countries such as China, Samsung could offer higher-capacity batteries.

In Europe, on the other hand, transport and safety regulations could limit the final size, requiring versions with smaller capacity.