Portuguese 
English 
Spanish 
4 min of reading 
0 comments 
Rumors Indicate That The Chinese Brand Is Working On A Smartphone With A Giant Battery And Surprising Thickness, Surpassing Models Like The Redmi Turbo 4 Pro.
Xiaomi, through its subsidiary Redmi, seems to be ready for another revolution in smartphone battery technology. According to the leaker Digital Chat Station, known for anticipating news from the Chinese mobile market, the brand is developing a Redmi phone with a capacity of 8,500 mAh — a number that impresses both for its size and the device’s sleek design, being less than 8.5 mm thick.
The information was published on Thursday (7) on the Chinese platform Weibo and quickly spread across forums and specialized sites. If confirmed, the new model from Redmi will have one of the largest batteries ever seen in conventional phones, surpassing the recently launched Redmi Turbo 4 Pro, which already amazed with its 7,550 mAh capacity.
Thickness Below 8.5 Mm With A Giant Battery? Redmi Might Achieve That
What stands out the most in this new project from Redmi is not only the battery size but the engineering advancements made to keep the phone slim. For comparison, models like Samsung’s Galaxy S25 Ultra have a 5,000 mAh battery and 8.2 mm thickness. In other words, the new smartphone from Redmi could have almost double the endurance while maintaining similar dimensions.
-
Robots that enter tunnels, refineries, and buildings at risk of collapse to fight fires are being bought by Paraná in a batch of 26 units, after a court overturned an injunction that was blocking the acquisition in the middle of a drought.
-
Free-to-air TV in Brazil will undergo a revolution from now on.
-
Submarine robot Redwing departs on a historic 5-year mission to attempt to circumnavigate the globe without a crew, silently crossing oceans while measuring temperature, salinity, and currents to predict hurricanes and climate change.
-
While space weakens the hearts of astronauts, scientists discover that human mini-hearts grow better in microgravity and could pave the way for heart tissues produced off-Earth.
According to Digital Chat Station, Redmi’s labs are focused on perfecting internal battery technology, seeking greater capacity without compromising the lifespan of components and without sacrificing comfort in daily usage. The solution lies in using more advanced materials, as we will see next.
Silicon-Carbon: The Secret Behind The Giant Battery Of The Redmi
The main innovation that could make this possible is the adoption of batteries with silicon-carbon technology, partially replacing traditional graphite in the electrodes. This type of material has become common among Chinese manufacturers and allows achieving much higher energy densities.
While conventional graphite-based batteries reach about 372 mAh per gram, silicon-carbon can theoretically reach over 4,000 mAh/g. This means it is possible to store much more energy in a smaller space, enabling phones with larger batteries without drastically increasing thickness or weight.
Another positive point of the material is that it reduces the risks of short circuits caused by the accumulation of lithium ions, which could also enhance the safety of fast charging — a constant concern in high-capacity phones.
Redmi Turbo 4 Pro Has Already Been A Step Ahead — Now The Brand Wants More
The Redmi Turbo 4 Pro, which recently hit the Chinese market, has already been an indication of what the company plans for the future. With its 7,550 mAh, the model has already surpassed much of the competition, being considered a smartphone with a large battery that does not compromise design or weight.
The potential new phone with 8,500 mAh capacity shows that Redmi is rapidly advancing in this direction. Although the official name of the device has yet to be revealed, rumors suggest it might belong to the same Turbo family, aimed at users seeking above-average performance and endurance.
Market Trend: Phones With Up To 10,000 mAh On The Way
The leaker’s publication also references a growing trend in the Asian market, which is already seeing smartphones with batteries above 7,000 mAh as commonplace. According to him, 2025 is expected to mark the beginning of a new era, with models reaching 10,000 mAh in capacity — something that, until recently, was limited to tablets or ultra-resistant phones.
In practice, this means endurance for two or even three days of intensive use, something increasingly valued in a scenario where smartphones take on roles of computers, TVs, gaming consoles, and digital wallets.
Still No Official Release Date
Despite the excitement caused by the leak, Redmi has not officially confirmed the new model. There is also no information about its commercial name, complete specifications, or release date. However, considering that the Redmi Turbo 4 Pro was recently launched, it is possible that this new phone with an 8,500 mAh battery will arrive later in 2025, as part of the brand’s ongoing innovation cycle.
The expectation is that the company will reveal more details at future events or through official teasers — a common practice in Xiaomi’s and its partner brands’ announcements.
-
1 person reacted to this.