Xiaomi clearly recognizes the growing demand for high-capacity batteries, especially with the latest carbon-silicon technologies gradually replacing traditional graphite. These innovations allow smartphones to store significantly more energy than ever before. One of the upcoming Redmi devices is rumored to come equipped with a 9000mAh battery, a substantial upgrade compared to the standard 5000mAh units found in many current models.
According to sources on the Chinese social network Weibo, Xiaomi has successfully tested the Redmi Turbo 5 with this enormous 9000mAh battery, supporting 100W fast charging. While these numbers are impressive, there’s speculation that the company might even aim for a 10,000mAh battery, which would mark a major milestone for mid-range smartphones. Earlier rumors suggested a 7500mAh battery, so the actual specs of the Turbo 5 have clearly exceeded initial expectations.
Currently targeted at the Chinese market, it wouldn’t be surprising if Xiaomi later released this phone under its popular POCO brand, which is well-known for offering high-value devices at competitive prices. There’s a possibility it could launch as the Poco X8 Pro, although this hasn’t been officially confirmed yet.
The concept of ultra-high-capacity batteries isn’t new, but it’s gaining momentum in the second half of 2025. After years of 5000mAh becoming the standard, phones with 6000mAh or 7500mAh batteries have become increasingly common, offering longer usage times without significantly increasing thickness.
However, tech giants like Apple and Samsung remain cautious. They’re concerned about the long-term durability of carbon-silicon batteries compared to traditional graphite ones. If these new batteries prove to maintain capacity well and have minimal memory effects over time, it’s likely that major manufacturers will seriously consider adopting them in future devices.
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