Control panel issues for ebike

jja

100 µW
Joined
Feb 23, 2025
Messages
7
Location
California
Hello I'm very new to this enuke world hit me a hyper compact ebike or aka salnova which is made in china now first question is could I possibly use a control panel that was made for an electrical scooter ???? And if so could someone help me figure out the throttle wires on the control panel I'm trying to use cause I can't find the exact control panel I'm using kcq-emc7939-v1,0 my original control panel is a qr-y2d the only difference I notice is the current limit mines is 13 the other panel is 15 iam I ok
 
Because ebike controllers and their display units need to communicate to change settings etc and different manufacturers/models use different communication protocols If a display gets damaged/broken and an exact replacement from the supplier isnt available. the simplest solution is often to replace the complete controll system (display + controller) with a matched pair bought from the same supplier.

Explain in detail your problem and include pictures to illustrate for less general and specific guidance.
 
I have a brushless motor controller DC36V 350 W under voltage.31V now this is the difference the original controller is 31V+0.5V the new one I want to put is just 31V and the current limiting for the new one is 15A my original is 13A+0.5 does that matter?? And I'm having a hard time hooking a 6 pin throttle to a 5 pin controller I know what there for just don't know how to hook them up so 6pin wires throttle red/black and white signal wires yellow and brown is the power on/0ff switch and green with a black jumper wire goes to the battery indicator and the controller wire colors are (Sw.)YELLOW wired red (12v) black (GND) blue( RXD) and green( TXD)
 
Is the old display broken?

Because ebike controllers and their display units need to communicate to change settings etc and different manufacturers/models use different communication protocols If a display gets damaged/broken and an exact replacement from the supplier isnt available. the simplest solution is often to replace the complete controll system (display + controller) with a matched pair bought from the same supplier.

Explain in detail your problem and include pictures to illustrate for less general and specific guidance.
 
Okay so I have a a six wire throttle I'm trying to hook up to a five wire controller my throttle is white red plus five and a black ground with the green battery indicator and a black jumper wire that goes into my throttle ground along with the power on and off switch which is white now which is yellow and brown what I'm trying to do is hook it up to my yellow switch my plus 12 vote red wire my green me and my black ground wire my blue and green signal wire data wires the TX and RX wires I'm trying to hook it up to a hyper compact e-ride bike I'll show you pictures and in the model number so you guys can help me please so the one on the right is another controller I want to try to put if you guys can help me see if that one is compatible I've been trying to put this together for the last two months so please if anybody can help me I think I was able to hear it click like it wanted to move and in but nothing I mean I can't even get the battery indicator to go on because I don't know where I would put that at
 

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That’s a big wall of text. I tried running it through a translator, to translate to English, but that didn’t help.
Lol sorry I don't speak ebike Language but I am trying to my bike up and going so I want to guess n say the rain had something to do with my bikes issues so I came home went to turn it on it turned on but that wasit my horn and lights wasn't working nor was u able to move the throttle now I was thinking if my pas isn correctly on would that be an issue why it's not going on
 
Translator still wont help figuring out what language this is.
The translator gets confused since the words are English. I noticed translating to Spanish, then back to English makes it a little easier to read. Doing it with other languages doesn’t do much, so I guess the Ai is better with some languages than others.
IMG_0215.jpeg
 
I have a brushless motor controller DC36V 350 W under voltage.31V now this is the difference the original controller is 31V+0.5V the new one I want to put is just 31V and the current limiting for the new one is 15A my original is 13A+0.5 does that matter?? And I'm having a hard time hooking a 6 pin throttle to a 5 pin controller I know what there for just don't know how to hook them up so 6pin wires throttle red/black and white signal wires yellow and brown is the power on/0ff switch and green with a black jumper wire goes to the battery indicator and the controller wire colors are (Sw.)YELLOW wired red (12v) black (GND) blue( RXD) and green( TXD)


A 15a controller will be fine replacing a 13a original.

your 6 pin throttle is not a display, it might have a battery meter ? but its not an interactive lcd display that will display different configuration settings and allow you to select and save them is it?

Try posting pics of 1) the bike 2 ) the labels on the controller boxes, 3) the 'display' your trying to connect to.


I suspect your trying to use a scooter/moped throttle/battery meter with an ebike controller??
 
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