Since most electric scooters have a 30 minute or longer range the 30 Minute Maximum Discharge Current row of the chart should be used to determine what size batteries to use.
For better hill climbing changing the rear wheel sprocket provides the most options. The Razor EcoSmart scooters original wheel sprocket has 65 teeth. 80 and 89 teeth sprockets that bolt directly onto the EcoSmart's freewheel sprocket are available. The large the wheel sprocket is the better the scooter will be at hill climbing.
The EcoSmart scooters top speed with its stock 65 tooth wheel sprocket is around 18 MPH. With an 80 tooth wheel sprocket the top speed would be around 15 MPH, and with an 89 tooth wheel sprocket the top speed would be around 13 MPH.
Please let us know if we missed any questions, or if you have any further questions.