Hook up battery ... and motor runs

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Haplo
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Last seen: 7 years 10 months ago
Joined: Sunday, August 7, 2011 - 12:26
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Hook up battery ... and motor runs

Hi:
I bought an electric scooter (used) recently, and purchased two brand new batteries; however, after charging it overnight and hooking it all up, as soon as I close the circuit, the motor runs and the scooter tries to take off on me (key was in the off position). I have spent most of my day going over the wiring, and if I disconnect the wires that go directly to the motor, everything else is fine (lights, horn, turn signals).
When I look at the old batteries (2 12 volts), there is a wire going from the negative on battery 1 to the positive of battery 2. However, the positive of battery 1 and the negative of battery 2 have 2 wires each soldered to them (the 2nd wires were both 6 inches long and cut). I know the one positive wire and one negative wire go to the red and black coming off the controller, but I have no idea what those second wires are for, nor can I find anywhere to connect them on the scooter.
I know very little about the scooter, other than that it says Hawk on it, and Yongang.
Are the batteries connected wrong? Why would the motor run as soon as I connect the power when the key is in the off position? (disconnecting the key switch assembly did not change anything) (not going to apologize, but I know just a enough about wiring to install a basic light switch without frying myself :-) ).
Thanks.

colin9876
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Joined: Thursday, October 23, 2008 - 11:37
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Re: Hook up battery ... and motor runs

Extra wires for alarm system or something that needs to be on all the time?
You say 'you connected the power to the red and black comming out of the controller', but the power has to go into the controller.
The Controller then has its own power leads to the motor!
Can u post pic of controller

Haplo
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Last seen: 7 years 10 months ago
Joined: Sunday, August 7, 2011 - 12:26
Points: 5
Re: Hook up battery ... and motor runs

Photobucket

Photobucket

The close-up is a little fuzzy, sorry.
The white and blue wires on the far left go to the motor (through the #2 connector as you can see from the picture); the red and black ones beside them go to the battery (there is a 30 amp fuse on the red wire which you can see, as well as the exposed wire from the black wire coming off the controller). Try as I could, I could find no other wires to connect to the battery. If I disconnect the #2 connector and hook up the black and red wires from the controller to the batter, all the electrical works fine.

robert93
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Re: Hook up battery ... and motor runs

That exposed fuse is a disaster waiting to happen! Yes, something is wrong if that thing is trying to move with the key switched off. Are you sure of the polarity of the wiring? The extra wires may go to a charging port somewhere on the scooter, or a broken off charge cable. You may want to double-check that switch with a meter to be sure its off, it may be on.

Haplo
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Last seen: 7 years 10 months ago
Joined: Sunday, August 7, 2011 - 12:26
Points: 5
Re: Hook up battery ... and motor runs

I agree about the exposed fuse ... it was only exposed because I was working and checking everything.
As for the polarity, I am fairly certain it is right. As for a charging port (I am assuming you mean where I plug the external charger to charge the battery) it is intact and there are no broken or missing wires anywhere; it sat plugged in the whole night and charged the batteries no problem; which confused me a little, as the fuse that was in there was blown, which raised the question in my mind as to how the batteries charged with a blown fuse. I thought maybe the key assembly was faulty, but it seems fine as well. All the wires look good, I could not find a break or even a tiny nick in any of them. I may end up taking it in to have it looked at, but would rather not if I can help it (tight budget and all that). I will see if I can grab a tester at work tomorrow and check the switch as you suggested.
Thank you.

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