EVespaBatteriesMotor & ControllerTransmissionWiring DiagramDC-DC Converter AddedBattery Trays
OwnerRay Good
LocationLancaster, PA United States map
Web/EmailWebPage email image
Vehicle1972 Vespa Rally 180
My plan is to package all of EV components inside of the Vespa body, so that it maintains its original lines.
MotorPerm Motor PMG-132 Permanent Magnet DC
DrivetrainThe electric motor is connected to the Vespa transmission via a chain drive.
ControllerAlltrax AXE-7234
Right now I have the maximum current draw reduced to 40% or 120 amps.
Batteries12 B and B HR-15-12, 12.00 Volt, Lead-Acid, AGM
Batteries are organized in 2 parallel groups of 6. This forms a 72 Volt, 30 AmpHour pack.
System Voltage72 Volts
ChargerZivan NG1
72 Volt, 12 Amp - Pulled from a 2002 GEM Car

HeaterNone; none planned
DC/DC ConverterKelly HWZ Series
I bought this converter on the cheap through kellycontroller.com It was only $131 with shipping from Asia to US.
InstrumentationPalm Vx running Alltrax monitoring software courtesy of Steve S. @
Top Speed51 MPH (82 KPH)
Theoretical Top Speed Based on Gear Ratio and 3000 RPM motor speed.
RangeI'm hoping to get a 25 mile range with 30 AmpHours.
Seating Capacity2 adults; may be too back heavy to ride 2 up.
Curb Weight0
Will calculate when I'm finished...
120 lbs in batteries
Conversion TimeWhenever I get a chance
Conversion Cost~$3300 and still going!

code by jerry