The Greenworks R0203244-00 Lawn Mower Blade Controller helps manage blade operation for smooth and reliable mowing performance. Designed as a replacement control component, it regulates the electrical signals that control the mower blade system, helping provide consistent blade engagement and operation. Proper controller function supports responsive performance, efficient power use, a... https://www.wholetoolbox.com/greenworks-r0203244-00-lawn-mower-blade-controller-80v-82v/R0203244-00.html