Mock-UpPakTrakrBatteries InstalledSpinningMotor - Top ViewMotor - Tail EndController and ChargersFirst RideOn-Board Chargers
OwnerJohn Alder
LocationCollege Park, Maryland US map
Web/EmailWebPage email image
Vehicle1991 Suzuki Katana
MotorAdvanced DC K99-4007 Series Wound DC
This is a 6.7" series wound DC motor, same as K91-4003 except for the shaft.
DrivetrainChain - have not decided on final gear ratio yet.
ControllerAlltrax 7245
Batteries6 Power Sonic PS-12550, 12.00 Volt, Lead-Acid, AGM
System Voltage72 Volts
ChargerDeltran Power Tender Plus
I charger per battery. 5A each.
HeaterNone.
DC/DC ConverterVicor V72B12E250BL
72V to 12V, 250W "mini".
InstrumentationPakTrakr and original speedo.
Top Speed53 MPH (85 KPH)
Expecting low 50's. I've had it to 45 and it was still pulling.
AccelerationEnough to keep up in traffic. I expect it to be better when I adjust the gear ratio.
Range30 Miles (48 Kilometers)
Hoping for 30-35 miles.
Watt Hours/MileNo idea yet.
EV Miles
Start:12,580 Miles (20,241 Kilometers)
Current:12,631 Miles (20,323 Kilometers)
Total:51 Miles (82 Kilometers)
 
    As of 10/31/2009
Seating CapacityOne rider plus one passenger.
Curb Weight550 Pounds (249 Kilograms)
Stock was 450lbs. I have not weighed it, but I think I am 100lbs over stock.
TiresStock
Conversion Time15 months. I took a lot of time practicing welding before I really got going.
Conversion Cost$3500
This has been a great project. I still have a few things left to do and then I will try to get it registered. I am hoping to make it my daily driver.

code by jerry