Why does my RYOBI 80V Lithium Zero Turn Ride-On Mower have poor runtime?

If you find your RYOBI 80V Lithium Zero Turn Ride-On Mower have poor runtime: 

• Check the tyre pressure is correct – see:
  • Tyre pressures for 30"
  • Tyre pressures for 42"
  • Tyre pressures for 54"
• Inclines, length of grass, wet grass, blunt blades as well as age and condition of batteries all impact overall runtime.
• Regularly check and empty the catcher if fitted as the added weight will reduce mowing time.