[280z1975]

Originally Posted by boyaka

pick a speed
or go full throttle and find out what your watt consumtion is and speed
then firgue out how many watts hours your battery pack is then divide battery pack watt hours by you consumtion then multiply by speed and that how many miles you will be able to go on that pack
this is a rought estimation

That might be possible IF I had an electric scooter, which I don't. I do, however, have my racing bicycle which does have a watt measuring device, www.srm.com, from which I know it takes about 400 to 450 watts to sustain that speed (total bike and rider weight was less than 80kg, 23mm tires and a flat road). But I don't know what the difference would be for a scooter and rider (around 150kg) with larger tires and larger frontal area.

The best place to estimate the watt requirements I can find/know is this one:

http://www.analyticcycling.com/

-Gregg-