October 25, 2010 | 8:00am
The cans for Relentless Energy Drinks say "Conceived in the U.K., Born in the U.S.," and the can of orange "Fire" flavor we tried included this quote from Benjamin Franklin: "Energy and persistence alter all things."
It's an interesting use of the quote, especially since we can't imagine ol' Ben Franklin liking the taste or effects of modern energy drinks -- even if Relentless is one of the better brands we've tried.
The "Fire" flavor is very potent and super sweet -- imagine drinking melted orange popsicles or carbonated orange Kool-Aid. We didn't find the flavor too overpowering, but we've always had a sweet tooth. Our drink was cold, too, which makes a difference. Relentless probably doesn't taste very good warm.
Caffeine content in Relentless is pretty high -- 197 mg per 16-ounce can (that's almost three times the amount of caffeine in a Red Bull), and the caffeine reportedly comes from "green coffee beans." As per most energy drinks, Relentless also contains a wallop of B Vitamins and Taurine.
The amount of Taurine in Relentless -- 1,888 mg per 16-ounce can -- is one of th highest amounts we've seen in energy drink, and probably not that necessary considering all the caffeine in there.
Nevertheless, Relentless does the trick as far as a pick-me-up and keep-me-going carbonated concoction.