TSDZ2 + front light relay mod, will it blow up 860C?

Hi fellow ebike tinkerers,

I'm planning to do this mod to my motor to enable a higher power front light to be directly driven by the UI and also don't need a separate battery for the light any more:

https://www.youtube.com/watch?v=RuHUcbF1ClE&t=1s

In summary the stock lighting circuit on the controller board has a very weak current capacity and if you install even a half decent light the circuit will just go pop. A relay is installed to feed the light from the main battery instead.

It occurred to me they had a VLCD5 display in the video but I've a 860C.

Thus the QUESTION: anybody has experience with this mod paired with a 860C? I just want to make sure it's not going to blow up... :wink:

I can't answer your question, but this works great with my 860c

https://www.electrifybike.com/store/p163/Roxim_X4EB_6-90v_headlight_and_taillight.html#/

cresny said:

I can't answer your question, but this works great with my 860c

https://www.electrifybike.com/store/p163/Roxim_X4EB_6-90v_headlight_and_taillight.html#/

Click to expand...

I've got that exact light, and it blew up my previous controller when I was running a VLCD5, hence the lighting relay mod I'm doing now.

Did you modify your controller board?

Charlie Whiskey said:

cresny said:

I can't answer your question, but this works great with my 860c

https://www.electrifybike.com/store/p163/Roxim_X4EB_6-90v_headlight_and_taillight.html#/

Click to expand...

I've got that exact light, and it blew up my previous controller when I was running a VLCD5, hence the lighting relay mod I'm doing now.

Did you modify your controller board?

Click to expand...

No, but I am using the custom cable from Electrify bike that splits the 5-pin Higo connection. I think they stated that you need the 850-860c or another like it with this light. I'm wondering if it's because it offloads from the controller somewhat since it manages config storage? Anyhow, I've had no issues.