Battery capacities have been climbing surprisingly quickly over the past year, and Oppo may be preparing one of the biggest jumps yet.
According to Digital Chat Station, the company is testing a new mid-range smartphone equipped with a battery rated at around 9,700mAh, with typical capacity reportedly reaching the 10,000mAh mark. If the leak proves accurate, the device would comfortably exceed most of today’s battery-focused smartphones.
Reports dating back to late 2025 mentioned a massive single-cell battery entering trial production, carrying a rated capacity of roughly 9,750mAh and a typical value close to 10,000mAh. At the time, it felt more like a glimpse of future hardware than something that might show up in a commercial phone anytime soon.
The leaked device is said to use a 4nm-based chipset, paired with a flat LTPS display carrying a resolution around the 1.5K mark.
The phone reportedly uses high-polymer impact-resistant materials and elements of the company’s “diamond architecture” design, which has appeared in several recent devices aimed at improving drop resistance.
The rumored price is perhaps the most surprising detail. Digital Chat Station claims the device is being positioned around the 2,000 yuan range (roughly €253 at the current exchange rate), which would place it firmly in the mid-range segment rather than the premium category.
Of course, battery capacity alone never tells the whole story. Software optimization, charging speeds, thermal management, and overall efficiency matter just as much. Still, the idea of a mainstream smartphone approaching the 10,000mAh mark would have sounded unrealistic not very long ago.
There are already a handful of smartphones from Realme and Honor that ship with 10,000mAh batteries, including the Realme P4 Power, Realme Narzo Power, Honor Power 2, Honor Win, and Honor WIN RT. It will be interesting to see how quickly the rest of the industry follows, if at all, once 10,000mAh batteries become commonplace in Chinese smartphones.
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(Source: Digital Chat Station on Weibo)
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