OwnerBorce Trajkovski
Owner's Other EVPimped Chinese kid's electric bike
LocationBitola, Pelagonia North Macedonia map
Web/EmailWebPage email image
Vehicle2006 Baotian BT50
Original vehicle was a Chinese Baotian BT50T scooter.
MotorISKRA 3KW 3-Phase AC
900Rpm 6 pole 3 phase AC induction motor, 3KW continuous, 6KW peak.
DrivetrainBelt + Reductor
Controller Home made MCU based 3 Phase AC controller
Home made multifunction 3 Phase AC controller powered by 40MHz Micro-controller board, controlling throttle, speed, power. Adjustable: Max speed, Max power, throttle response.
Batteries9 HQ, 12.00 Volt, Lead-Acid, AGM
12Ah Total of 1.3KWh
System Voltage108 Volts
Home made universal 250W charger with over voltage protection.
Heater100W battery heater for winter months.
DC/DC Converter
Home made 100W 110V to 12V DC/DC converter.
InstrumentationOriginal scooter instrumentation + converted fuel level indicator to show battery level instead.
Top Speed30 MPH (48 KPH)
On flat ground, more on slight downhill.
AccelerationAwesome acceleration, 1.5 seconds to 20KM/h, 5 seconds to top speed.
Range15 Miles (24 Kilometers)
Range is not so great because of the vehicle weight, but will be tippled when new LiFePo4 batteries are installed.
Watt Hours/Mile90 Wh/Mile
We hope for more with LiFePo4 because SLA batteries have Peukert effect.
EV Miles
Start:5,460 Miles (8,785 Kilometers)
Current:5,510 Miles (8,865 Kilometers)
Total:50 Miles (80 Kilometers)
    As of 12/12/2009
Seating Capacity2 adults
Curb Weight310 Pounds (140 Kilograms)
Almost 40% of weight goes to the batteries but new LiFePo4 batteries will change this to less than 20%.
Tires12 inch
Conversion Time5 months including custom electronics.
Conversion Cost600$ without base vehicle.
Additional FeaturesHas regenerative braking when going downhill (accelerating) and throttle at half.
Has a reverse gear when you press the starter button.
Has safety features, it will not start when the throttle is more than 30% and key is turned and it will not start when charger is still connected.
Also it has thumb kill-switch and parking bar which disables the drive power.
As far as I know, this is first high power 3 phase AC induction motor (Tesla motor) powered scooter.

Converted By Borce Trajkovski and Vasko Ackovski from Bitola, Macedonia.

If you want to contact me for any reason, write an email.

code by jerry