I need help wiring my controller to my running and brake lights

[tastytaco]

I have a new controller and s861 display but no wiring diagram and can't find the answer to how to wire my brake and taillight to it please help

 

[Apartunis]

"Lamp line" is steady voltage, probably full battery voltage. It will not switch on with the brake levers and it is likely power limited to a low current like 100mA combined. None of those plugs shown will become activated by the brake levers. You can switch the brake light directly with a lever but in that case you can not also use it as a motor kill switch.

 

[yooper2001]

If your old controller had connectors and the new one doesn't, you can use a splitter like this....

https://a.aliexpress.com/_mPJNcy7

It uses the controller power out...and brake outputs.

 

[tastytaco]

If your old controller had connectors and the new one doesn't, you can use a splitter like this....

https://a.aliexpress.com/_mPJNcy7

It uses the controller power out...and brake outputs.

Thanks that helps alot I have learned so much through this forum the past 3 years I started knowing nothing and a slow crappy razor ecosmart metro to upgrading it to 48v lifepo4 1500wt 16" brushless hub that tops out around 45 mph

 

[E-HP]

"Lamp line" is steady voltage, probably full battery voltage. It will not switch on with the brake levers and it is likely power limited to a low current like 100mA combined. None of those plugs shown will become activated by the brake levers. You can switch the brake light directly with a lever but in that case you can not also use it as a motor kill switch.

Just to clarify, If by steady voltage, you mean no interaction with the brakes, that sounds right. But, I don’t think it’s always powered or even powered by turning the controller on. I believe the S861 energizes the “lamp line”, by holding down the up button, or something like that, so unpowered by default.

 

[fill]

If using extra or replacement lamps not supplied with the original configuration, use the controller lights power feed to turn on/off your own lighting power wiring fed from the battery directly. Otherwise you risk overloading the internal switch which could blow with unknown side effects.. killing the lamp circuit minimum.

You may need to employ step down regulators to reduce battery voltage to levels suitable for lighting and signals.

To control the brake light a y cable splitting the brake cut off signal as suggested above will allow you to use the grounding of the signal wire (this end at least) to switch a relay or mosfet to power the brake light.

 

[E-HP]

I’ve mentioned before that it would be great to have an ebike lighting section in the knowledge base. Not that I personally give a rat’s butt about lighting, but because the subject come up so often. For a while I was saving links to threads with good info, but I’m too lazy to tackle it in the KB. I was envisioning a starting from scratch section, since that would explain all of the components, then a refit section on adapting to an existing system that may have existing components, during an upgrade (controller swap, etc.).
Of course it’s hard to get motivated when nobody looks at the KB anyway. It’s sort of just sitting there with a lot of placeholders for the “K” part.