Electriceptor Donor before conversionBefore... (with new full fairings!)Before...(no outer skin)Empty frame!Cardboard battery mockup (first pass)Diagram showing second battery mockup poBattery frame partially builtMore tests with batteriesShout-out to ElMoto.net and all the awes
LocationMountain View, California United States map
Web/EmailWebPage email image
Vehicle1985 Honda VF500F
I got the Interceptor off craigs list. It's needed a lot of love,
but now it looks great!
MotorEnerTrac Enertrac MH602 10KW Brushless DC Hub Motor Brushless DC
The enertrac hub motor is a 10KW hub motor laced to an 18"
rim. The website is at
ControllerSevcon 120V/300A Gen4 Size4
In September of 2012, I replaced the Kelly KBL12401IC with a
Sevcon Gen4.

I had to get the controller replaced due to some issues, but i
got the CAN-Bus version. Along with an Arduino, I can get
lots of good data from the controller! :)
Batteries36 Thunder Sky TS-LFP60AHA, 3.30 Volt, Lithium-Ion
LiFePO4s in a 36sp1 configuration. I'm not sure if I'll be able
to fit all the batteries, but here's hoping i can....Yes! I did fit
them all, but now no room for an onboard charger. :(
System Voltage115 Volts
ChargerElcon 1500
Purchased from BMSBattery.com. It's not an Elcon brand, but
is essentially an Elcon PFC-1500 (Elcons are OEMed from
China, so this is the same but not with the Elcon name)
DC/DC ConverterVicor
2 vicors, one 150->24V, the other 150V->12V. The
controller wants to be on its own 24V floating circuit that's
not attached to the 12V electronics.

Also, a small switching power supply chip (National
LM2825 to supply the current sensor and arduino)
InstrumentationArduino Uno with CAN-bus shield
(WebPage /> with-usd-card-holder-p-706.html or
WebPage 20x4 Serial
LCD, EM-406 GPS, plus some home-grown software.
Currently, acts as a telemetry system, but hopefully will
become an arduino based BMS at some point.
Top Speed72 MPH (115 KPH)
Originally hoped to get 70-75mph. It did 72 (indicated on a
GPS, 75 on the speedo).
See the speed test:
Range50 Miles (80 Kilometers)
Originally Hoped to get 60-70 miles per charge. Have made it
to 51 miles, but the last couple of miles the batteries were
sagging BAD.
Watt Hours/Mile150 Wh/Mile
Running anywhere between 90-170 Wh/m for trips that
average about 3-20 miles on a mix of mostly suburbia main
thoroughfares (streets with stop signs and lights and top
speeds of 40-55mph). Accelerations kill the efficiency.
EV Miles
Start:26,487 Miles (42,617 Kilometers)
Current:31,100 Miles (50,039 Kilometers)
Total:4,613 Miles (7,422 Kilometers)
    As of 11/4/2014
Seating Capacity1 adult
Curb Weight465 Pounds (211 Kilograms)
About 465 lbs measured using two bathroom scales.

Turns out this is a bit heavy for the motor. It
causes the motor to have to work too hard at low speeds
and it heats up.
TiresBridgestone Battlax BT45 (110/90-16 Front, 120/80-18 Rear)
Conversion TimeWay too much. Thought it'd take 6 months. It's been 18
months and it's just about done.
Conversion CostWAAAAAAAYYY too much.
I'm just getting started with this conversion. The full trials and tribulations will
(hopefully) be chronicled on the site: WebPage

Update: 2009-12-03
The ICE is out! new pics posted.

2011-05-29: mostly done! go check out the website.

2011-07-22: been riding it a bunch for the past couple of months. It's working pretty
well. I think in my ambition to pack the thing full of batteries, the bike weight is a bit
heavy for the motor. This has caused the acceleration to not be great and the range to
be less than i thought it'd be. Oh well, this is my fault for not keeping the weight in
check. It's still a blast to drive.

2012-10-14: Been riding it for more than a year. It's great, but need to do a controller
upgrade, then maybe batteries and motor. Alas, it will never really be "done". :)

code by jerry