Charging a 3Ah battery in 1 minute would need 180A @ 3.7V (not 18A), or 666W. USB power delivery can provide 100W (5A @ 20V.) I think I'd be happy if I was ab

Charging a 3Ah battery in 1 minute would need 180A @ 3.7V (not 18A), or 666W. USB power delivery can provide 100W (5A @ 20V.) I think I'd be happy if I was able to charge a 11.1Wh battery in < 7 minutes.