How long will my Garden Cultivator run on a full charge? Support January 05, 2021 16:47 Updated Follow The unit will cultivate up to 325 square feet on a full charge. Because of soil conditions, run-time will vary greatly. Related articles Can I buy Black and Decker parts online? What can I use to clean the blades on my hedge trimmer? Comments 0 comments Please sign in to leave a comment.