The maximum speed limit depends on the model of the scooters or E-bike. Each model has differents speed limit. click on the model and look throught the description/specification you will see the max speed.

No, scooters under 20 miles dont required a license to ride on the street and dont need registration but please check your local MVA, every states have different rules and regulation

Yes, for safety reason.

Yes but below (2) inches of rain or snow.

Watt hours is a way to measure the energy capacity of a battery pack, so you know what to expect from your new E-bikes, E-Scooters, E-Skateboards and Alloy Folding E-Scooters in terms of range performance. To calculate the watt hours (WH) of our battery pack, simply multiply the voltage by the amp hours (Ah) of the pack. For example; A 36-volt 10-Ah battery pack has 360 watt hours (36 X 10 = 360). If you are nitty with your energy usage, each mile you travel will cost you about 20 watt hours. Therefore a 360 watt hour pack will get you about 18 miles, which is 360/20=18. The range can vary widely depending on where you ride, your body weight and how you ride.