Sure, you can use it.
The device will only pull as much power as it needs, though. With the tiny battery, max it will draw is around 12W (13-14W if measuring from the wall depending on adapter efficiency). Iirc, that's more than enough to get it to 50% within 30 minutes and I think power draw actually drops below 12W already before the 30 min are up.
I've tested with 5W iPhone, 12W iPad, and 18W & 30W USB-C chargers. The 5W is a lot slower but charging times with the 12W, 18W and 30W are much the same.