Xiaomi’s new Redmi phone lasts for three days on a single charge
Xiaomi has launched the Redmi Note 17 Pro Max, featuring a high-density silicon-carbon battery that promises up to three days of usage. Despite the impressive battery life, the device features mid-range specifications and a camera system that serves as the primary compromise.
Why it matters
The integration of silicon-carbon battery technology into mass-market smartphones marks a potential shift in mobile device endurance and energy density standards.
The 9,210mAh dual-cell battery in the new Redmi Note 17 Pro Max is the biggest that Xiaomi has fit in any phone it’s sold in Europe — and remarkably, in some other markets the phone comes with an even larger 10,000mAh single-cell design.
As you can probably guess, this is a silicon-carbon battery either way, one with a high 16 percent silicon content, meaning it’s more energy-dense than most. It’s allowed Xiaomi to fit this huge battery into a phone that’s basically the same size as an iPhone 17 Pro Max, but 8g lighter and fractionally thinner too.
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