Money Dunkin’ releasing new Extra Charged Coffee with 20% more caffeine, Dunkfetti Donut before 2021 December 29, 2020Kelly Tyko, USA TODAYComments Off on Dunkin’ releasing new Extra Charged Coffee with 20% more caffeine, Dunkfetti Donut before 2021 Dunkin's "Extra Charged Coffee" has 20% more caffeine than its classic hot and iced coffee. Get a $2 medium coffee deal through Jan. 26.