Xiaomi developing 7,500mAh battery with 100W charging for upcoming smartphone
Xiaomi is currently testing and developing a smartphone with a massive 7,500mAh battery paired with 100W fast charging capabilities, according to renowned tipster Digital Chat Station. This combination could fully charge the large battery in just 63 minutes.
Xiaomi's sub-brand recently introduced the Redmi K70 Extreme Edition, featuring a 5,500mAh battery with 120W fast charging. Building on this, Xiaomi is now reportedly working on developing even larger batteries for future smartphones.
The company is said to be exploring the possibility of equipping smartphones with a 7,000mAh battery that supports 120W charging or a 7,500mAh battery with 100W charging. This shift in focus marks a strategic move away from the pursuit of ever-faster charging speeds, which offer diminishing returns, toward enhancing battery capacity to meet growing consumer demands for longer-lasting devices.
Other smartphone manufacturers are also reportedly looking to increase the energy density of batteries in their upcoming devices. Xiaomi, once a leader in fast-charging technology with its over-200W wired charging capabilities, is now prioritizing the development of larger batteries.
| Capacity | Rate | Full Charge |
|---|---|---|
| 5,000 mAh | 120W | 18 minutes |
| 5,500 mAh | 100W | 34 minutes |
| 6,000 mAh | 120W | 30 minutes |
| 6,500 mAh | 100W | 49 minutes |
| 7,000 mAh | 120W | 40 minutes |
| 7,500 mAh | 100W | 63 minutes |
This new direction in battery technology is being spearheaded by Xiaomi's R&D center at the Nanjing Science and Technology Park in China, as reported by Digital Chat Station on Weibo. The technology under development could significantly impact the smartphone market by offering longer battery life without sacrificing charging speed.
Xiaomi is among several smartphone manufacturers shifting their focus from ultra-fast charging to better battery capacity. Companies like Honor, vivo, OnePlus, Oppo, and Realme are adopting silicon-carbon cells, which offer higher energy density rather than the fastest charging speeds.
This trend reflects a growing industry preference for enhancing battery life over further increasing charging rates. For instance, the vivo X Fold3 features a 5,500mAh battery with 80W charging in a slim 4.7mm body, while the OnePlus Ace 3 Pro has a 6,100mAh battery with 100W charging.
Xiaomi's competitors, including OnePlus and Oppo, are also expected to introduce smartphones with larger batteries, possibly up to 6,500mAh, using new-generation silicon materials. Xiaomi, which has traditionally equipped most of its devices with 5,000mAh batteries, is now testing new battery technology that could debut in one of its future models.
Recent Xiaomi releases, such as the Redmi Note 13 Pro+ and Redmi K70 Ultra, already boast a 5,500mAh battery with 120W fast charging, capable of fully charging in just 24 minutes. This shift towards bigger batteries and more efficient charging solutions indicates a broader industry trend prioritizing battery capacity over extreme charging speeds.
These massive batteries and ultra-fast charging speeds are part of Xiaomi's efforts to push the boundaries of smartphone battery technology. The company has already demonstrated 200W wired charging that can fill a 4,000mAh battery to 50% in just 3 minutes and 100% in 8 minutes.
While not all of these battery configurations may make it to commercial products, the Xiaomi 15 series expected later this year is rumored to use silicon-carbon batteries with capacities around 6,000mAh. As battery and charging innovations continue, consumers can expect even more powerful and efficient smartphones in the near future from Xiaomi and other leading brands.
