Hello JoeAR,.

We're sorry to hear that you are not fully satisfied with this lawn mower. It is important to recognize that the run time depends on the load acting against the unit and fluctuates depending on the height setting, the terrain, grass height, type of grass, whether you are mulching, operator technique, etc. - there are so many factors to consider. The harder the unit must work, the quicker the battery charge will drain. Similar to how the gas in a vehicle will deplete quicker when driving at higher speeds or carrying more weight.

Here are a few tips to extend your run time!

1) When cutting thick grass, reduce walking speed in order to allow for a more effective cut and a proper discharge of the clippings.
2) Only mow 1/3 of the total grass length at a time - no more. For a healthy lawn, always cut off one-third or less of the total length of the grass. The average lawn should be approximately 1 1/2 to 2” (3.8 to 5 cm) long during cool months, and between 2" to 3 1/4" (5 cm to 8.3 cm) long during hot months.
3) Mow when the grass is dry. As this is an electric unit, mowing wet/damp grass is a safety issue. However, ensuring the grass is dry will also help the grass cut cleanly and discharge appropriately. Wet/damp grass carries more weight and will mostly stick to the blade/motor shaft and will not appropriately discharge or cut easily.
4) Make sure the battery is cool before use. When the battery will not be in use, we suggest storing it indoors, in a cool dry area - away from direct sunlight. Leave the charger unplugged and the battery disconnected from the charger unless it needs charging.
5) Only use the self-propelled feature when needed. Self-propelled mowers do use more battery than standard push mowers as more power is being demanded from the battery to run the blades and the wheels.

We hope these tips will help! Should you have any further questions or warranty needs, please contact us directly through chatbot on www.greenworkstools.com that will direct you to a live agent or call us on Greenworks Pro toll-free helpline at 1-855-345-3934. We would like the opportunity to speak with you to see if we can find a solution.