Hello anonymous
Thank you for your feedback. We are sorry to hear that you are unsatisfied with your lawnmower purchase. The run-time of a battery would depend on the load acting on the unit while in use (speed, terrain, unit height, grass height, and density). Please be aware that the more power being used from the lawn mower (i.e. lawn mower speed, terrain, grass height, density, etc.), the faster the battery charge will drain. Here are a few other tips to help get the most out of the battery run time and achieve a cleaner cut: 1) Set the mower to the highest cutting height (or 1/3 of the length of grass), mow no more than 1/3 of the total length at a time. 2) Mow in the morning or late afternoon to reduce the heat stress on newly cut grass and ensure that grass is dry. 3) Alternate mowing patterns each time you mow. As grass develops a grain based on your cutting direction it will lean towards the direction of your mowing path. Changing the pattern allows better vertical growth and helps to keep the cut neater. For best results keep the grass under 4" in length and walk at a slow but steady pace to allow the blades to cut efficiently. We hope these tips will help you with the issues you have encountered. However, if they do not, kindly contact Greenworks at 1-888-909-6757 (1-888-90WORKS) or by email on info@greenworkstools.com so that we can discuss these matters with you further. Please know that this lawnmower carries a 4-year warranty from the date of purchase and a 2-year warranty on the battery.