ElectricMotorcycleForum.com

I'm building a bike with a sevcon millipak 4Q controller.  It has a 16 pin plastic connector piece and once you put in the pins they STAY in.  Does anyone know where I can find a replacement connector and pins?  I've searched the web and various EV sites and am having no luck.  Thanks!

It looks really cool, but kind of unstable.  The would probably need to adjust the proportions if the actually decided to go with it.

My conversion has some pretty heavy cost constraints as well.  I  used Sealed Glass mat Lead acid batteries so I don't have to worry about spills or topping up the water.  They are pretty heavy, but will work fine for me.  From the site I posted, I ordered a kit that contained my Motor, Controller, Contactor and throttle.  I spent a touch more to get the controller with regen braking.  After I had all the stuff, it was just a matter of hacking off stuff I didn't need and mounting the new components.  

I just did my power circuit test this weekend.  It's pretty exciting to see your motor turn for the first time.  

I used...
Motor: Etek-R (brushed) rated 48Volts
Batteries: 3 - 12V Lead Acid Batteries (36V system)
Controller: Sevcon Millipak 4Q (has regen breaking)
Contactor: White Rogers 24VDC 600Amp peak (Also used a big fuse)
Throttle: Magura twistgrip potentiometer
Others: odds and ends such as welding cable, wires, connectors, bolts, sprockets, chain, etc.

Everything here was under $1250.00 after shipping, but that didn't include the batteries or sprockets.

My calculations show it should go about 35mph and have about a 20 mile range (stop and go).
I'm using 12 teeth on my drive sprocket and 72 teeth on my rear sprocket.

I hope this helps!

Ah stands for Amp-Hours.  It is a measure of capacity.  If you run at 2 amps for 3 hours you use 6 Ah.  So the higher, the better.  Other than that, it is just a matter of what you can afford and what your project can hold in terms of size and weight.  Don't forget a good battery protection circuit when using lithium or you'll throw away tons of money.

Some basic equations:
Watts=Volts X Amps
WattHours = Volts X AmpHours
AmpHours = Amps X Hours

I'm using a Magura Twistgrip potentiometer with a Sevcon Millipak 4Q and having some trouble. When I check it with my multimeter it starts at 5kOhms and goes to 0 as you turn it.  How do I switch that?  The manual says to do go from 0 to 5. 

Also, are there any tips for getting a pin out of the 16 port connector?  I'm having some difficulties.