Chaos GT1600 scooter light/throttle issues

[Scott1975]

Hi, I recently purchased a Chaos GT 1600 scooter for my son, A problem has developed that where he turns the lights on, the throttle is not working! As soon as the lights are switched off, the throttle works as normal!
Any help would be greatly appreciated

 

[amberwolf]

Sounds like the battery is so low (close to empty) that turning on the lights drops the voltage so much that the controller sees too low a battery to safely operate it.

That can happen if charging isn't working or the battery is failing.

 

[Scott1975]

Sounds like the battery is so low (close to empty) that turning on the lights drops the voltage so much that the controller sees too low a battery to safely operate it.

That can happen if charging isn't working or the battery is failing.

Hi amberwolf, thanks for the response, this is happening when the scooter is fully charged, would you think the battery is failing, this scooter is less than 1 month old and done approx 150km

 

[amberwolf]

It's always possible. you'd have to measure the battery voltage, at the controller's battery connector input, to find out. You should test with the light off, and on, and see what the voltage is either way. If there is a large voltage difference, then there is either a problem with the battery itself, or such a bad connection*** somewhere between the cells and the controller that it is causing that voltage drop under load.

***bad connection can mean corrosion in a connector or wire, broken wire barely touching something, connector not fully plugged in, etc.

More details about the actual problem you see, actions taken to test, what specifcally happened just beofre the problem started, etc., may help us help you. More info is almost always better. (quite often, the information left out points directly to the cause of the problem and thus directly to a solution).

If the whole scooter (not just the throttle as stated in the OP) works normally without the light on, that eliminates the battery itself as the light shouldn't take nearly as much current as the battery does.

If the scooter doesn't operate normally but just the throttle does, then it could still be the battery (or connection).

If the lights are correctly operating when the scooter does not, another possibility is the switch itself, if it has multiple positions like a car ignition. If there is a position for "just lights", and one for "just motor" and one for "lights and motor", and the switch is definitely in the right position, then it could be broken internally so the positions are off by one, etc.

If the lights are not operating, and the scooter doesn't operate, at the same time, when the lights are turned on, then it's much more likely to be the battery (or connection) being overloaded by a short circuit (wiring, electronics, etc) in the lighting circuit past the switch for the lights.

If the lights are controlled by a button on a cotnroller screen, then the screen itself (or the controller) could have internally failed so that switching the lights on forces a shutdown of the controller system, short circuit, etc--this event would almost certainly prevent the lights from operating as well.

 

[Scott1975]

Hi amberwolf, again thanks for the information and suggestions, the scooter works fine until you switch lights on, the lights are on there own switch, as soon as they are turned on there’s no response when the throttle is pulled. I will check wire connections and voltage and hopefully discover the fault.

 

[amberwolf]

, the scooter works fine until you switch lights on, the lights are on there own switch, as soon as they are turned on there’s no response when the throttle is pulled.

Do the lights work normally?
Or do they also not work?
Is there anything on the scooter that indicates power is still on for the controller? battery indicator? screen? etc?
Does that still work normally when the lights are on?
Etc.

As noted before, more detail is better, to help us help you.

Be as specific as possible--remember that we are not there, and we know absolutely nothing about your situation that you don't directly and specifically tell us.

 

[Scott1975]

Hi amberwolf, I removed the battery and control unit and checked all wiring (visual) and connections, I disconnected the rear light connection and powered the scooter back up, the front light still worked and the throttle also now works, I reconnected the rear light and the throttle went back to not working when the lights where switched on, so it looks like there’s an issue on the rear light circuit/wiring! When I get a chance to spend more time on it I will recheck the wiring and connections on this circuit, I have attached a battery rear bike light in the mean time as unfortunately I had little time to investigate more! Hopefully I get a better go at it this week! Many thanks for all your comments and suggestions.

 

[amberwolf]

You should still post more detail to help us help you. For instance, does the rear light work? If it doesn't, and disconnecting it resolves the problem, there is probably a short inside it. If it does work then it's not shorted, but whatever provides the power to it could be failing or damaged so that it can no longer provide enough power to it. Or....?