I'm sure it mulches well, but doesn't look like something that would ever work well on an electric mower. It probably weighs a lot and causes a lot of air resistance, thus the motor will have to work harder. Then the battery life will be terrible. All it takes is a dull blade for my battery life to go down, and down a lot. From roughly 45 minutes to an hour, down to 20'ish minutes. Huge difference with blade variances.