Until someone manages to figure out how to get truly wireless charging to work in a practical way, we’re stuck with regular wired chargers. But if we’re stuck getting tethered down to the nearest outlet by a USB cord for the foreseeable future, it may as well be a fast one. And Meizu’s new Super mCharge technology — recently announced at Mobile World Congress — might be the fastest charging solution we’ve seen yet.

Super mCharge is rated at 55W (at 11V/5A), which is dramatically more power than Motorola’s 28.5W TurboPower or Qualcomm’s 18W Quick Charge 3.0 methods. According to Meizu, that’s enough to fully charge a 3000mAh Super mCharge-rated battery in just 20 minutes, which is certainly impressive if it actually holds up in the real world. And in a world where exploding smartphone batteries are a lingering concern, Meizu promises that Super mCharge batteries will only reach around 100.4 degrees Fahrenheit, which is lower than the 111.2 degrees Fahrenheit that it claims Quick Charge 3.0 batteries can reach.

Meizu hasn’t actually announced any phones that will be using Super mCharge yet, but it’s presumably only a matter of time until we see the quick charge technology show up in new devices.