Xiaomi 17 Ultra Charging Capacity Confirmed by Certification: What You Need to Know
The wait is almost over. The upcoming Xiaomi 17 Ultra, poised to be the most powerful and feature-rich model in the flagship 17 series, has just passed through China’s 3C certification (China Compulsory Certification). This regulatory step is a critical milestone before a device’s launch, and the listing provides the first official confirmation of its charging capabilities.
The 3C database reveals two distinct variants of the Xiaomi 17 Ultra, identified by the model numbers 2512BPNDAC and 25128PNA1C. The key finding from this certification is that both models will support 100W wired fast charging. This certification solidifies the charging speed for the brand’s top-tier flagship, which is expected to debut in the coming months.
A Step Up From the 15 Ultra
This 100W charging specification represents a clear, albeit incremental, upgrade over its predecessor. The Xiaomi 15 Ultra, which launched earlier in 2025, featured 90W HyperCharge wired charging. The 10W increase for the 17 Ultra aligns it with the charging speeds already offered by the rest of the Xiaomi 17 series.
While some earlier rumors and speculative reports had pointed to a more aggressive 120W or even 150W charging solution, the official 3C certification—the same body that approves phones for sale in China—has now confirmed the device will support 100W. This move suggests Xiaomi is prioritizing battery health and standardization across its premium lineup.
100W Charging Confirmed, But Satellite Connectivity is the Real “Ultra” News
The 3C certification revealed more than just charging speeds. The presence of two different model numbers (2512BPNDAC and 25128PNA1C) confirms a split in the 17 Ultra lineup.
- 2512BPNDAC: This model is listed as supporting standard 5G networks.
- 25128PNA1C: This premium model is certified with support for both 5G and satellite connectivity.
This development is significant. The 100W charging speed, while fast, is not unique to the Ultra. The already-released Xiaomi 17, Xiaomi 17 Pro, and Xiaomi 17 Pro Max all feature 100W charging support. This indicates that Xiaomi has standardized 100W as its flagship baseline for this generation.
Therefore, the “Ultra” differentiation is clearly shifting away from raw charging wattage and toward other professional-grade features. The inclusion of satellite connectivity on the higher-end model is the first confirmed example of this new “Ultra” strategy, which will likely be complemented by a radically different camera system.
How the Xiaomi 17 Ultra’s 100W Charging Compares to Rivals
So, how does this 100W charging speed stack up in the highly competitive 2025–2026 flagship market? While 100W is no longer the absolute fastest speed available, it places the Xiaomi 17 Ultra firmly in the top tier, especially when compared to its biggest rivals.
| Flagship Model | Wired Charging | Wireless Charging | Battery Size | Est. 0–100% Time |
| Xiaomi 17 Ultra | 100W (Confirmed) | 50W (Rumored) | 7,000mAh? (Rumored) | ~35–40 min (Est.) |
| Xiaomi 15 Ultra (Predecessor) | 90W (Confirmed) | 80W (Confirmed) | 5,410mAh | ~40 min |
| OnePlus 13 | 100W (Confirmed) | 50W (Confirmed) | 6,000mAh | 36 min (Confirmed) |
| Oppo Find X8 Pro | 80W (Confirmed) | 50W (Confirmed) | 5,910mAh | ~42 min |
| Samsung Galaxy S25 Ultra | 45W (Confirmed) | 15W (Confirmed) | 5,000mAh | 1 hr 22 min (Confirmed) |
As the data clearly shows, the flagship market has diverged. Xiaomi and OnePlus continue to push the 100W standard, offering users a full charge in just over half an hour.
Meanwhile, Samsung continues to take a far more conservative approach with its Galaxy S25 Ultra, sticking to 45W charging that takes nearly an hour and a half for a full charge. This makes the Xiaomi 17 Ultra’s 100W charging a massive selling point for power users who need to refuel quickly.
What About Wireless Charging, Battery, and Other Specs?
While the 3C certification only confirms wired charging and connectivity, the rumor mill has been active in filling in the other blanks. It is important to note that the following specifications are not confirmed and are based on leaks and industry reports.
- Wireless Charging: Leaks strongly suggest the Xiaomi 17 Ultra will support 50W wireless charging. This would be a logical inclusion, as the standard Xiaomi 17 already supports 50W wireless speeds.
- Battery: Battery capacity remains a topic of speculation. Some reports have suggested a massive battery between 7,000mAh and 7,500mAh. However, it is possible these figures are being conflated with the Xiaomi 17 Pro Max, which has already launched with a 7,500mAh cell. A battery in the 7,000mAh range seems plausible for the Ultra.
- Processor: It is all but guaranteed that the Xiaomi 17 Ultra will run on the Snapdragon 8 Elite Gen 5 chipset, the same platform powering the rest of the 17 series.
- Camera: The “Ultra” branding is expected to be most evident in the camera system. Leaks point to a powerful quad-camera setup on the rear, potentially headlined by a new 200-megapixel periscope telephoto sensor.
Final Verdict: What This Means
The 3C certification of the Xiaomi 17 Ultra provides two hard facts: 100W wired charging is confirmed, and a satellite connectivity model is coming.
The 100W speed is a solid, competitive, and welcome confirmation, ensuring the Ultra keeps pace with its fastest rivals. However, the real story here is the evolution of the “Ultra” name. With 100W charging now standard across the 17 series, Xiaomi is defining its top-tier flagship through next-generation features like satellite communication and a heavily upgraded, (rumored) 200MP camera system.
Frequently Asked Questions (FAQ)
Q: What is the confirmed charging speed of the Xiaomi 17 Ultra?
A: The Xiaomi 17 Ultra is confirmed to support 100W wired fast charging, based on its official 3C certification listing.
Q: Is the Xiaomi 17 Ultra charging faster than the 15 Ultra?
A: Yes. The 100W charging is a 10W improvement over the Xiaomi 15 Ultra, which supported 90W wired charging.
Q: Will the Xiaomi 17 Ultra have satellite connectivity?
A: Yes, one of the two certified models (25128PNA1C) is listed with satellite connectivity, confirming the feature for a premium version of the device.
Q: How fast is the Xiaomi 17 Ultra charging compared to the Samsung S25 Ultra?
A: The Xiaomi 17 Ultra’s confirmed 100W charging is more than double the speed of the Samsung Galaxy S25 Ultra’s 45W charging.
