Mowing Time

• An electric mower that runs from a battery can only mow for 30 to 60 minutes. The small time a battery lasts will limit the the amount of grass that the mower can mow. Owners of yards over 1/3 of an acre should not use a cordless mower for their lawn. They do not hold enough power to mow more than this. As the battery ages, the effective run time will decrease, and your mower will not run as long as it did when the battery was new. A battery can take 24 hours to charge and only run for one hour.
  
  

Replacement Parts

• Gas mowers are still far more common than electric mowers, which means that most outdoor equipment repair shops cater to gasoline mowers. Finding parts or people to work on your electric mower if something goes wrong can be difficult.
  
  

Cost

• A new electric mower can cost $350 to $450, as of March 2011. You can buy a mid-range value gas mower for less. If cost is a major factor for you, the corded mowers are less expensive, which can be a viable option if the other drawbacks of the corded mower do not inhibit you.
  
  

Range

• One major drawback of the corded mower is that it has a very limited range. Since a corded mower relies on an extension cord for power, it can only mow as far as the cord can reach. A long extension cord is around 100 feet. If you have any grass to mow more than 100 feet from the closest outlet to your yard, you cannot mow that area.
  
  

Pushing Effort

• None of the electric mowers are self propelled. Self-propelled means that the mower has a system that turns the wheels and makes it less difficult to push. The electric mowers tend to be very heavy and can be difficult to push. Without a self-propel system in the mower, the electric mower can present a workout for the operator.