PepsiCo via Amazon takes 25% off its Starbucks Doubleshot Energy 15-oz. Can 12-Pack. Plus, Prime members get free shipping. Combining rich, bold espresso with eye opening spices that awaken your senses. Instructions: Best served chilled or over ice. Refrigerate after opening. For best flavor, drink by date on bottom on can. Deal ends September 30 or while supplies last.