You could die from drinking too many energy drinks as the energy drinks can cause heart issues and they can cause your heart to beat too fast and could lead to a heart attack.
However you would really have to drink at least 10 to 30 cans of energy drinks per day everyday before it affected you that bad.
Still drinking too many energy drinks is not good for your health so you should avoid drinking more than one energy drink per day.
Large amounts of caffeine may cause serious heart and blood vessel problems such as heart rhythm disturbances and increases in heart rate and blood pressure.
Caffeine use may also be associated with anxiety, sleep problems, digestive problems, and dehydration.
A can of soda typically has less than 70 mg.
So even with the most highly caffeinated energy drink, you would still have to drink around 30 of them in rapid succession to reach the 10 g range.
Chances are, if you tried to drink that much, your body would stop you before you reached toxic levels.
Excessive or regular consumption of energy drinks can lead to heart arrhythmias, headaches, high blood pressure, and anxiety.
In the US, more than 20,000 emergency room visits in 2011 were associated with energy drink use.