Oppo and OnePlus Testing a Revolutionary 8,000mAh Silicon-Carbon Battery With 80W SuperVOOC Charging

February 19, 2025 – by ysh

Oppo and OnePlus are making significant strides in the battery technology space, with new reports emerging that the two companies are testing a groundbreaking 8,000mAh battery. According to trusted tipster Digital Chat Station, the new battery is expected to support 80W SuperVOOC charging—similar to the charging technology already found in the companies’ existing flagship smartphones. This is an exciting development that further solidifies Oppo and OnePlus’ commitment to pushing the boundaries of what’s possible in smartphone performance, especially when it comes to battery life and charging speeds.

The innovation is being tested by Ouga Lab, the joint research and development group formed by Oppo and OnePlus. This partnership aims to explore next-gen battery technologies, and the 8,000mAh Silicon-Carbon (Si/C) battery currently under evaluation represents one of the most advanced projects to come from the lab.

The Benefits of Silicon-Carbon Batteries
Chinese smartphone manufacturers have been at the forefront of a technological shift toward Silicon-Carbon batteries, which offer several advantages over the more traditional lithium-ion (Li-ion) batteries that are still used in most devices today. The key advantage of Si/C batteries lies in their ability to increase energy density, leading to batteries that are both smaller and more efficient, allowing for longer battery life without increasing the size of the phone. They also offer faster charging speeds and better overall thermal management. This is particularly important in smartphones, where fast charging has become one of the most sought-after features by consumers.

Compared to the conventional lithium-ion batteries that rely on graphite, Silicon-Carbon batteries use a combination of silicon and carbon, which can store more energy and handle higher charging voltages without degradation. The Si/C technology being tested by Oppo and OnePlus is expected to take full advantage of these benefits, delivering more power and faster charging without compromising on battery health over time.

A New Era of Battery Content: 15% Silicon
One of the standout features of the new 8,000mAh battery being tested by Ouga Lab is its use of 15% silicon content—significantly higher than what’s currently found in OnePlus’ existing devices. When OnePlus launched its Ace 3 Pro last year, the company boasted about having the “highest silicon content” at the time with 6% in its Si/C battery. With the new battery technology, the silicon content has been nearly doubled, which could drastically improve battery performance, both in terms of capacity and longevity.

This higher silicon content suggests that the battery will not only last longer but also charge at faster speeds without the risk of overheating or compromising overall battery health. These improvements could be game-changers in the smartphone market, especially as users demand more power and better performance from their devices.

Will This 8,000mAh Battery Make It to Consumer Devices?
While the 8,000mAh Silicon-Carbon battery is still in the testing phase, there’s no word yet on whether it will be featured in upcoming Oppo or OnePlus smartphones. However, it’s safe to assume that this technology could be reserved for future flagship models. Given the capacity and the innovation behind the battery, it would make sense for Oppo and OnePlus to introduce it in their next major devices, potentially the successors to the OnePlus 13 or the Oppo Find X8 series.

This aligns with previous reports suggesting that both Oppo and Xiaomi are working on even larger batteries for their 2025 smartphones. Both brands are rumored to be developing 7,000mAh battery variants, with Xiaomi’s flagship 15 Pro and OnePlus’ 13 models expected to feature batteries in the 6,000-6,100mAh range. As a result, it seems likely that we could see this new 8,000mAh battery making an appearance in some of the industry’s most powerful devices in the near future.

The Bigger Picture: A New Era of Smartphone Batteries
As smartphone manufacturers, particularly in China, push the envelope on battery technology, the competition for the longest-lasting, fastest-charging smartphones is heating up. With advancements in Silicon-Carbon battery technology, we could soon see devices that not only offer more power but can also be recharged faster than ever before. For consumers, this means smartphones that last longer, charge more quickly, and offer improved overall performance. For manufacturers, it means staying ahead of the curve in a highly competitive market.

Whether this 8,000mAh battery ends up in future Oppo and OnePlus handsets or not, one thing is clear: the future of smartphone battery technology is set for some exciting changes. With companies like Oppo, OnePlus, and others pushing forward with Silicon-Carbon tech, we can expect major improvements in the way we use and charge our devices over the next few years.

Stay tuned as these developments unfold—Oppo and OnePlus are just getting started.