Any chance to avoid anti spark switch?

[pcace]

Hi there,


I am currently trying to replace the electronics in my Ampler Stout e-bike with a FLIPSKY 4-13S Lipo ESC Speed Control Mini FSESC6.7 70A. I have also bought an anti-spark switch. Now I have realized that the space for the switch might be too little, so I am thinking about ways to get rid of the anti-spark switch – or make it smaller.


The bike originally had a 25mm on/off switch in the frame. Are there mechanical switches that I could use to switch the power directly? Or do I really have to use an anti-spark switch?


Are there any alternatives that would be smaller than the switch I have bought?


Thanks a lot for any ideas!


Cheers

 

[eee291]

You could use antispark plugs like xt90 as150 etc.
Something like this

https://a.aliexpress.com/_EzYrgIi

 

[pcace]

Thats also nice - but would that mean to not have an on/off switch at all? or is there a trick to it then?
the idea would be to have all the electronics inside the frame, so no pysical access to the battery connector.

 

[slaphappygamer]

I’ve seen people use a loop key. Here is a good video detailing it.

 

[Joaquin Suavve]

Please pardon my ignorance, but doesn't your battery on/off switch?

 

[pcace]

Please pardon my ignorance, but doesn't your battery on/off switch?

I am not sure if i understand your question- what switch do you mean? I have a battery with integrated bms and then basically the antispark switch and controller + arduino for the sensors..

The loopkey idea is quite nice i have to say. Is there a problem leaving the bike + controller turned on? Any idea if there is some kind of sleep mode in the vesc?

Cheers

 

[slaphappygamer]

I had never worked with a VESC, but in the KT controller system I had, I installed a keyed switch between the controller and display. I had to turn the key on, then I could turn on the bike. There was always power to the controller. I never noticed any current draw, while the switch was off.

Instead of using that push button, why not use something like this?

There are variations of this. Without the voltage read out. Only with a key. With a key and 3 position switch. And many others.

The loop key goes between the battery and the controller. So the controller would not have power without the loop key.

 

[scianiac]

Some VESCs have on-off switches, these often just connect and disconnect battery power to the voltage converter.

Mechanical power switches with anti-spark function can be done various ways, it's really more about finding a nice beefy switch. You would just have it so either through the switch's motion or a second smaller switch you connect the battery through a resistor first which is basically what an anti-spark switch does. So if you got like a 3 position switch that can handle the current and the middle position connects this resistor that would be one option.

VESC does have a standby mode that it will go into after a set time, I've seen people test just leaving it on for extended periods, I don't recall the results, I think it was nothing bad happened, it was somewhere on the eskate forum. There will be power draw, how much I'm not sure, kinda depends how often you use it and I don't know if the CPU runs the whole time so maybe that will wear it's memory out or something weird. I know sometimes they do weird things if left one for a long time since some variable overflows, might not be an issue anymore though.

 

[James340]

I have 2 factory ebike that doesn't have a battery cutoff &they are ten years old

 

[Joaquin Suavve]

Some VESCs have on-off switches,

I was under the impression that the on/ off switch on the EM3ev KingShark battery would be sufficient... Am i wrong?

I also have an off/ on switch for the flipsky controller that wasn't going to use. Should I wire that in as well?