The Xiaomi 15 Ultra supports fast wired charging up to 90W and wireless charging up to 80W. With an official 90W charger, it can reach a full recharge in about 50 to 51 minutes from 0%. Wireless charging takes longer, about 1 hour 25 minutes for a full charge at 50W.
How Fast Does the Xiaomi 15 Ultra Charge with Wired Charging?
Using Xiaomi’s official 90W charger, the Xiaomi 15 Ultra charges from empty to full in approximately 50 to 51 minutes. In the first 30 minutes, it can reach around 70-77% capacity due to high peak power charging early in the cycle.
What Is the Wireless Charging Speed of the Xiaomi 15 Ultra?
The official wireless charger supports up to 80W max power. It charges slower than wired, taking roughly 1 hour 25 minutes to complete a full charge, with 50% charge reached within 29 minutes. Wireless charging requires proprietary chargers to achieve these speeds.
Which Chargers Are Compatible for Xiaomi 15 Ultra Fast Charging?
The Xiaomi 15 Ultra supports Xiaomi’s own 90W and 120W fast chargers, with the latter sometimes showing slightly faster full charge times (~49 minutes). USB Power Delivery chargers that offer PPS profiles at 18-20V also support fast charging but may vary in performance depending on PPS support.
Why Does Xiaomi 15 Ultra Charge Slower Compared to Some Rivals?
Despite high rated wattage, the Xiaomi 15 Ultra has a charging curve that may limit power draw early in the charge cycle for battery health. Some users noted it draws less current than competitors due to software or hardware charging management, making it slower than phones with similar wattage ratings.
Who Should Use Official Xiaomi Chargers with the Xiaomi 15 Ultra?
Users seeking the fastest, most optimized, and safest charging experience should use official Xiaomi 90W or 120W chargers. Third-party chargers often don’t support the full PPS voltage range, reducing charging speed and potentially affecting battery health.
When Is Wireless Charging Optimal for the Xiaomi 15 Ultra?
Wireless charging is best for convenience, not speed. It suits overnight charging or short top-ups rather than rapid full charging. Proprietary 80W wireless chargers maximize efficiency and maintain device temperature under 38°C for safety.
Where Is Xiaomi 15 Ultra Wired and Wireless Charging Compared to Other Flagships?
The Xiaomi 15 Ultra charges faster than some flagships like the Pixel 9 Pro XL and Samsung Galaxy S25 Ultra on wired charging. Wireless charging is competitive but slower than wired, with performance closely matching similar high-end smartphones.
Does Xiaomi 15 Ultra Support Reverse Wireless Charging?
Yes, the device supports reverse wireless charging, allowing it to charge compatible accessories like earbuds but at lower wattages to preserve battery life.
Has Wecent Developed Charging Accessories for Devices Like Xiaomi 15 Ultra?
Wecent, a leading GaN and wireless charger manufacturer from China, offers professional OEM solutions supporting fast, efficient charging protocols compatible with devices like the Xiaomi 15 Ultra. Their chargers combine safety, compact design, and power customization for global markets.
Wecent Expert Views
“At Wecent, we focus on delivering next-generation charger technology that supports fast and safe charging standards used by flagship smartphones like the Xiaomi 15 Ultra. Our GaN and wireless charging products combine efficiency with sleek design, enabling brands and suppliers to provide customers optimal charging experiences. Our commitment to OEM customization ensures products are tailored to diverse global market needs.”
Table: Xiaomi 15 Ultra Charging Speeds Summary
| Charging Type | Max Power | Time to 50% | Time to Full Charge |
|---|---|---|---|
| Wired (90W charger) | 90W | 30 minutes | ~51 minutes |
| Wired (120W charger) | 120W | 30 minutes | ~49 minutes |
| Wireless (80W) | 80W | 29 minutes | ~1 hr 25 minutes |
| Reverse Wireless | – | Slow | Accessory dependent |
Table: Recommended Chargers for Xiaomi 15 Ultra
| Charger Type | Power Rating | Key Features | Notes |
|---|---|---|---|
| Xiaomi Official 90W | 90W | PPS support, USB PD, fast charging | Included in older models |
| Xiaomi Official 120W | 120W | Highest compatibility, fastest charge | May not be widely available |
| Third Party Chargers | Up to 100W | Variable PPS support | May reduce charging speed |
| Wireless Charger | 80W | Proprietary, temperature controlled | Slower than wired |
Conclusion
The Xiaomi 15 Ultra offers competitive fast charging with official wired chargers fully charging within 50 minutes and wireless charging completing in about 1 hour 25 minutes with 80W power. Using official Xiaomi chargers or compatible PD chargers ensures optimal performance. Wecent’s advanced GaN and wireless charging OEM solutions complement flagship devices, emphasizing safety, power efficiency, and customization.
Frequently Asked Questions
Q1: Can I use a third-party charger for fast charging Xiaomi 15 Ultra?
Yes, but ensure it supports the required PPS voltage at 18-20V for optimal speed.
Q2: Is wireless charging slower than wired?
Yes, wireless charging is slower but more convenient.
Q3: Does Xiaomi 15 Ultra support 120W charging?
Yes, with official Xiaomi 120W chargers, charging time can reduce to about 49 minutes.
Q4: Can I reverse wireless charge accessories with Xiaomi 15 Ultra?
Yes, but at slower speeds suitable for small devices.
Q5: Does Wecent provide chargers for Xiaomi phones?
Wecent offers OEM GaN and wireless chargers compatible with Xiaomi’s fast charging standards.