Electric blower vacs are powered by plugging them into a source of electricity, which means they can be operated as long as you have a power source. This is more suitable if you plan to clear out a large lawn. Battery-operated blower vacuums are easier to use because your range isn't limited by a cord's length. However, they only operate for up to 30 minutes, depending on the model. Battery-operated blower vacuums are also heavier and more expensive.