ElectricX2 Mod - motorElectricX2 Mod - hubBattery packR/C signal generatorInstrumentationDONE.Stow-and-go
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LocationCambridge, Massachusetts United States map
Web/EmailWebPage email image
VehicleSharper Image ElectricX2
Originally a small, kick-assist scooter. Not any more.
Motor feral Chinese motor Brushless DC
3 pound, 3.25" diameter model aircraft outrunner motor.

Tested and metered at 2100 watts
Drivetrain5mm GT timing belt drive, 3.75:1
Controller 100A HV Opto
Common hobby brushless motor controller, rated to 44 volts, 100A
Batteries28 Sanyo N3000CR, 33.60 Volt, Nickel-Metal Hydride
Batteries were found in the parts bin. Future upgrade path include 8Ah lithium polymer cells.
System Voltage33 Volts
HeaterToasty batteries
InstrumentationAstroflight Whattmeter R/C power analyzer
Displays volts, amps, amp-hours, watts, etc.
Top Speed22 MPH (35 KPH)
Seating Capacity1 adult
Curb Weight22 Pounds (10 Kilograms)
Tires5" kick scooter wheels, custom drive hub
Conversion Cost$350
Finally after a month of work it's done. About 3 pounds over the original design weight due to the large battery pack.

Retired as of 12/2007, rebuilding with in-wheel brushless motors and lithium polymer batteries!

code by jerry