- New to the LifeSpan commercial line, the E5i Commercial Elliptical Trainer delivers a superior cardiovascular experience. The E5i is built with high-quality commercial grade components including, sturdy double rollers set on twin rails, commercial drive system and mechanism, and it’s all backed with a commercial warranty. Best of all, the E5i commercial elliptical runs entirely off of self-generated power. Meaning, you don’t need to worry about placing it near an outlet or having cords cluttering your floor space. And, like all other LifeSpan exercise equipment, the console is intuitive and easy-to-use.Whether you are looking for a professional elliptical machine for your gym or commercial facility, the LifeSpan E5i is a perfect fit.