Why Your Galaxy S26 Ultra Might Not Hit 25W Wireless Charging with Magnetic Cases

One of the most significant upgrades for the Galaxy S26 Ultra is the leap in wireless charging performance. While the previous generation was capped at 15W using the Qi2 Ready standard, the latest flagship pushes boundaries with the Qi2.2 standard. This allows for speeds of up to 25W, which Samsung officially labels as Super Fast Wireless Charging. However, early reports suggest that achieving these top speeds might be more complicated than simply snapping on a magnetic case.

• ✨ Support for 25W Super Fast Wireless Charging via the new Qi2.2 standard.
• ✨ Requirement for a 45W wall adapter and an official Samsung magnetic charger.
• ✨ Potential compatibility issues with third-party magnetic cases like the dbrand Ghost Case.
• ✨ The existence of a "proprietary handshake" that restricts high speeds to specific accessories.

To unlock the full 25W potential on the Galaxy S26 Ultra, the hardware ecosystem must be perfectly aligned. Users are required to use a charging brick with at least 25W output (ideally Samsung's 45W adapter), a Qi2.2-certified wireless charger, and a case featuring integrated magnets aligned with the Qi2 specification. Despite these clear requirements, it appears that even high-end magnetic cases are struggling to deliver the promised performance.

The dbrand Compatibility Hurdle

The issue gained traction after a Reddit user reached out to dbrand, a popular accessory manufacturer, regarding their Ghost Case for the Galaxy S26 Ultra. The user noted that the case was unable to facilitate 25W Super Fast Wireless Charging. dbrand’s response shed light on a technical barrier that might frustrate many early adopters of the new flagship.

According to dbrand, the 25W charging speed relies on Samsung’s specific implementation of the Qi2.2 standard. The company claims that Samsung utilizes a "proprietary handshake"—a digital verification process between the phone and the charger—to unlock the higher wattage. Currently, this system seems to be optimized exclusively for Samsung’s own line of accessories, leaving third-party manufacturers in the dark.

Proprietary Handshakes and Qi2.2 Limitations

While dbrand confirms that their cases have correctly positioned magnets that meet the physical requirements of the Qi2 standard, the software side remains a challenge. This proprietary wall was not present in the earlier Qi 2.0 standard, but it appears to be a defining characteristic of Samsung's Qi2.2 rollout. For now, users who want the fastest possible wireless speeds may be forced to stick with official Samsung cases and charging pucks

What is the maximum wireless charging speed for the Galaxy S26 Ultra?

The Galaxy S26 Ultra supports up to 25W wireless charging, which is a significant improvement over the 15W limit found on previous models.

What hardware do I need to achieve 25W wireless charging?

You need a Samsung 45W wall adapter, an official Samsung Qi2.2-compatible magnetic wireless charger, and a compatible magnetic case.

Why won't my third-party magnetic case work with 25W charging?

Samsung appears to use a "proprietary handshake" in its Qi2.2 implementation. If the charger and case don't pass this digital verification, the phone may default to slower charging speeds.

Is dbrand fixing this issue for their Ghost Cases?

dbrand has stated they are still working to understand and replicate Samsung's proprietary implementation, but currently, their cases do not support the full 25W speed.

Does this affect standard Qi wireless chargers?

Standard Qi chargers will still work, but they will be limited to their usual lower speeds (typically 5W to 15W) and will not benefit from the Super Fast Wireless Charging feature.

🔎 Ultimately, the introduction of 25W wireless charging is a major win for Samsung enthusiasts, but the current reliance on proprietary technology creates a walled garden for accessories. If you prioritize the fastest charging possible, your best bet is to invest in official Samsung gear until third-party manufacturers like dbrand can decode the "handshake" required for the Qi2.2 standard. As the ecosystem matures, we hope to see broader compatibility across all magnetic cases.