Early adopters of the Galaxy Watch 9 and Watch Ultra 2 are facing significant hurdles with battery charging. While Samsung advertises full charge times between 80 and 90 minutes, many users report wait times ranging from two to four hours. These delays are impacting both the 40mm and 44mm models, leading to frustration among those who expect quick power delivery for their daily wearables.
Technical reports point to aggressive thermal throttling as the main cause. As the devices heat up during the charging process, the hardware automatically scales back power intake to prevent overheating. This protection mechanism causes the charging speed to drop significantly, often shifting from 5.5W down to 3.5W or even lower, which extends the time required to reach a full capacity state.
Compatibility issues with existing hardware add another layer of complexity. Owners report that chargers from previous generations, including the Watch 8 and some third-party docks, are failing to deliver consistent power. In many instances, these older chargers display slow charging warnings or reject the connection entirely. Surprisingly, some users noted that using a Watch 6 puck provides more stability than the hardware included in the box with their new watch.
The severity of the situation has driven some owners to extreme measures to bypass these throttles. Reports suggest users are placing their devices near fans or using ice packs to keep the temperature low enough to maintain maximum charging speeds. While this workaround highlights the severity of the thermal issues, it is not a long-term fix for hardware that should perform according to manufacturer specifications.
Samsung has received reports regarding these malfunctions and the community is currently waiting for an official response. Until a firmware update arrives to address the thermal management and charging handshake protocols, users may continue to see these inconsistent performance figures. We will track how the company addresses these specific hardware complaints.

