One UI 8.5 Code Reveals Major Charging Speed Boost for Galaxy S26 Ultra

Samsung might finally be ditching its conservative charging strategy. After years of watching competitors race past the 100W mark while its own flagships idled at 45W, the Korean giant appears ready to throttle up. Code buried within the latest One UI 8.5 builds suggests the upcoming Galaxy S26 Ultra will debut "Super Fast Charging 3.0," signaling the first meaningful boost to Samsung’s wired power delivery in years.

The "Level 4" Upgrade

The leaked code strings explicitly reference a "level 4" charging protocol:

• Super fast charging 3.0: %d%%
• Super fast charging 3.0

This sits directly above the existing "level 3" code used for the current 45W standard on the Galaxy S25 Ultra. While the code confirms the branding, it doesn't hard-code the wattage. However, persistent hardware rumors for the S26 Ultra point toward 60W capability. This "Level 4" designation essentially paves the way for that hardware to function, confirming that the software is already prepped for a higher voltage or amperage tier.

Decoding the Branding

Samsung relies on simplified marketing terms to keep consumers from drowning in voltage specs, and this leak clarifies the hierarchy for 2026. Until now, we've had "Super Fast Charging" (25W) for base models and "Super Fast Charging 2.0" (45W) for the premium tier. By baking "Super Fast Charging 3.0" into the OS well ahead of the S26 launch, Samsung is acknowledging that a speed bump is coming—and that they intend to make it a headline feature.

This matters because Samsung rarely changes these labels without a distinct hardware shift. Version 3.0 implies a definitive evolution, likely requiring both the new S26 Ultra hardware and a proprietary brick to unlock the full potential.

Too Little, Too Late?

If the rumors hold true, a jump to 60W addresses one of the few glaring weaknesses in the Galaxy lineup, but the context here is brutal. While Samsung has been cautious—likely scarred by the Note 7 legacy—competitors like OnePlus and Xiaomi normalized 100W and even 120W charging years ago. A OnePlus phone can charge from dead to full while you take a shower; a Galaxy Ultra currently requires you to watch an episode of TV.

Moving to 60W via Super Fast Charging 3.0 is a welcome improvement, shaving valuable minutes off a charge cycle for power users. But let's be honest: in a world where 240W demos exist, 60W is hardly "Super Fast." It’s simply "Fast Enough." Whether that distinction matters to loyal Galaxy buyers remains the real question for the S26 launch.