One of the key upgrades the Galaxy S26 Ultra brings over its predecessor is faster wireless charging. While the previous model supported wireless charging at up to 15W using the Qi2 Ready standard, the new device supports speeds of up to 25W using the Qi2.2 standard, which Samsung markets as Super Fast Wireless Charging.

To achieve 25W wireless charging on the Galaxy S26 Ultra, users need a charging adapter with at least 25W output from a single port, a Qi2.2-compatible wireless charger capable of delivering 25W, and a case with built-in magnets as per the Qi2 standard. However, it appears that not all magnetic cases can deliver the full 25W charging speed, including some from famous casemaker dbrand.

A Reddit user contacted dbrand, claiming that the company’s Ghost Case for the Galaxy S26 Ultra does not support 25W Super Fast Wireless Charging. In response, dbrand provided a detailed explanation.

According to the company, achieving 25W wireless charging requires using Samsung’s 45W charging adapter along with its official magnetic wireless charger and a compatible magnetic case.

dbrand claims that not all magnetic cases can enable 25W charging. It says the feature relies on what it describes as Samsung’s proprietary Qi2.2 implementation, which the company has not fully understood or replicated yet. According to dbrand, Samsung appears to use a unique system that is currently only implemented in its own accessories.

The company further explains that while its cases include properly positioned magnets, they still do not support 25W wireless charging because of what it calls a “proprietary handshake” required to unlock higher charging speeds. dbrand notes that this was not an issue with the earlier Qi 2.0 standard but seems to be a limitation with Qi2.2.