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Electric Mountain Board

Step 5Wiring, throttle and batteries

Wiring, throttle and batteries
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Wiring:
The controller comes with a paper describing the connectors and wire colors. Most controllers are similar and this diagram shows a good example of connector wiring: Controller wiring diagram

The only difficulty was with the throttle which had 4 wires but only 3 on the controller. After some testing the 4th wire was used as a power on indicator and I connected it to the red wire of the power light connector.

Using pin connectors and female blade connectors I replaced the originals and added an on/off switch in place of the key connector. (I also transferred the labels to the new connectors)

The motor wiring had to be reversed to make the motor run counter clockwise so the board would not run backwards.

Throttle:
The thumb throttle was placed on the end of the brake handle after removing a rubber cap. The throttle wires were then fed down through the handle and sleeve following the brake cable.

Batteries:
Two 12V scooter batteries are wired in series to provide 24V to the controller and mounted to the middle of the board using small tie down straps. This PDF file is very helpful and shows how to wire the batteries: Battery Wiring Diagrams
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8 comments
Apr 30, 2011. 1:23 PMmountainboardpro says:
Hey, Vurp
do u know if a 24 volt baterie would work instead of 2 12 volts and would it affect the speed and the other parts?
Sep 10, 2010. 1:56 PMsheen110 says:
hi vurp, could you help ,me out here ? iv damaged the thumb throttle when dismantling it and dont have a clue how it was wired

inside it has blue, orange,yellow and red
orange and yellow are contected fine and it lights up but red blue and white are cut. would you be able to remember how its supposed to be . ? i havethe same throttle as you.

shaun
Apr 24, 2010. 4:35 PMnitram135 says:
 I have 2 12 volt batteries that are in series that i want to connect to a 24 volt controller but when the controller touches the battery, i get a lot of sparks. Does any1 know why?
Aug 5, 2010. 7:52 AMinventor1995 says:
The leads in the connector may be bent and could be touching the two polarities of the battery together causing a short circuit.
May 17, 2010. 8:30 PMslivka says:
Make sure you got the polarity right.  Also if the batteries are discharged the can draw a lot of current at the begging.  
Oct 19, 2008. 6:48 PMmspice says:
Where did you get the speed controller? From looking online, $33 sounds like a *fantastic* price.
Jan 4, 2009. 3:13 PMfree2be641 says:
I got a nice 24Z 100-180W controller for $21.93 from electricscooterparts.com
Jan 4, 2009. 3:13 PMfree2be641 says:
I mean 24V
May 17, 2009. 9:11 PM808create says:
I found a 2-wire trigger throttle--would that work?

http://www.scooterparts.co.nz/throttles.html

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