Hello Chad48.
Thank you for your feedback, we are glad to hear you are enjoying the power of your mower.
Battery runtime can vary based on grass conditions and usage, but here are a few tips that may help extend runtime.
1. Mow more frequently, cutting smaller amounts of grass reduces strain on the motor and batteries.
2. Adjust cutting height, a higher deck setting can improve efficiency, especially in thicker grass.
3. Use self-propel only when needed, reducing use of the drive system can help conserve battery power.
4. Ensure full charge and proper storage, charge batteries fully before use and store them at room temperature for best performance.
5. Keep blades sharp and deck clean, this helps the mower run more efficiently and use less power.
For additional guidance on setup and best practices, you may find helpful video resources on Greenworks YouTube page by searching your model (MO48L520). If runtime continues to fall short of expectations, Greenworks Success team would be happy to review your setup and help further. They can be reached either using the online chat function, on Greenworks Tools page, accessible by clicking “Chat Now” in the bottom corner of your screen or by calling 1-888-909-6757.