Recent content by Liam.great98

Looks like dogman had the right idea. After taking a break from working on the bike over the winter, I finally got back to working on it. Brought all the electronics into the house (out of the garage) and shorted the wires from the key switch. Works perfectly. Then if I remove my wire and just...

Should I check for 5v while the throttle is connected, or disconnect it?

I hooked up all the parts today and when I turn the throttle, there is no response. The motor doesn't go, there's no noise, nothing. Here's the setup: Hall effect throttle 24v 250watt controller Two 12v SLA batteries in series Key switch 24v 250watt MY1018 brushed motor (mid drive) The only bad...

Alright, I'll definitely use black/red for the battery and blue/red for the motor. Thanks. For the throttle, I know the throttle I have is a hall effect one, is there a chance that the controller uses a different type of throttle? And where can I find instructions on measuring it with a...

I found this online: http://www.electricscooterparts.com/hookup/SPD-24250.htm it isn't exactly the same controller as mine, but it looks pretty close. It says that the female connector is the motor, which is what I suspected. The other thing I'm unsure of is about my throttle. The throttle on my...

The picture on the website isn't the same colour as mine, it has red/black and the other is brown/blue, whereas on mine they are red/black and the other is blue/red. Judging by other controllers, I am guessing the red and black is for the battery and the other one (which seems to have a variety...

I have a 24v 250w brushed motor controller that just arrived but the motor and battery plugs aren't labeled. I guess the assumption is that I'm putting into an actual electric bike, rather than using it to make my own. There are two pairs of wires, black and red, and blue and red. The blue and...

Ah, thanks. I'm sure you can tell, this is my first bike conversion project so I'm learning. I'm also 15. I got some 20, 30, and 40 amp fuses today so I'll start with the 20, if it blows a lot then I'll switch to 30, etc.

Should it go on the positive or negative side of the batteries? Or does it matter? I know there would be a tiny bit more current on the negative side, contrary to conventional current flow, but I don't imagine it would matter which side I put it on...

Also, should I put the fuse between the batteries and the controller, or the motor and the controller? Or both? I'm thinking if the motor overheats or gets struck or the wires break or something, then it would ruin the controller.

Alright, thanks. In terms of a fuse holder, I was thinking of using an automotive fuse and avoiding a holder all together. Then I could just slide spade connectors onto it and just have it in the middle of the wiring. I'll try a 20 amp duse first and move to 30 if it blows.

I'm making a 24 volt, 250 watt bike with a brushed mid drive motor. I'm wondering if it' nescessary to have a fuse, and what the rating should be. My controller doesn't have a plug to attach a fuse, so I'd assume I just put it in series with my batteries. For a 24v 250w system would a 20 amp...

So I should run the system to 21v? Will I still be ble to charge them back up on a 2 amp charger?

It's a 24v system. I'm getting a digital meter to mount on the handlebars but I need to know when to stop running. My controller doesn't have low voltage shutoff. I've looked at other controllers for 24v systems and they shut off at 20v. That would mean both batteries are at 10v. I've heard you...

Wow, I never imagined it like that. Thanks. I'll go ahead and order the first one!