Hello ACD Walker.
Thank you for sharing your detailed feedback and for being a Greenworks customer. We understand your concerns regarding runtime, performance in taller grass, and some of the design elements you mentioned. For a 1/6 acre yard, needing multiple charge cycles can occur depending on grass thickness, cutting height, and mowing conditions, as thicker or taller grass places a heavier load on the motor and can trigger protective features designed to prevent overheating or overcurrent.
To help improve performance, we recommend mowing more frequently and avoiding cutting more than one-third of the grass height at a time, as well as raising the deck height when tackling taller or dense areas. Ensuring the blades are kept sharp and clean can also significantly improve cutting efficiency and reduce strain on the motor. If the mower is stalling, checking underneath the deck for buildup and confirming the blades spin freely (with the battery removed) can help identify any resistance issues. Regarding runtime, alternating between the two included batteries and allowing them to fully cool before recharging can help optimize overall performance.
For the self-propel control sensitivity, making sure the handle is fully secured and adjusting hand positioning may help minimize accidental changes during operation. As for the headlight, if it has never functioned, that may indicate a wiring or component issue, and our success team can review that further if the unit is still within the warranty period. They can be reached either using the online chat function, on Greenworks Tools page, or by calling 1-888-909-6757.