The logo should communicate that THIS tea is the OBVIOUS choice for anybody wanting a lot of caffeine from tea and to get energy!
This a tea (beverage) product that is extra high in caffeine. The tea will have more caffeine than regular tea, and even more than coffee, and will give consumers lots of energy.
The target audience is people who want high caffeine tea - people that like tea, but want more caffeine from it. Or people that want to try something new instead of coffee.