Ebike regen braking

YGpro2003

1 mW
Joined
Feb 6, 2025
Messages
12
Location
Morocco
I open my controller and i dont know wich two pins to solder in order to activate regen braking, it is even possible im my case ?20250404_192822.jpg20250404_211811.jpg20250404_205523.jpg20250404_205531.jpg
 
im tired of bying new braking pads, and i go downhill a lot, i want to experience it, can you tell me the secret pins ?
 
im tired of bying new braking pads, and i go downhill a lot, i want to experience it, can you tell me the secret pins ?
Are they disc brakes? Personally I'd rather have the ones that wear out quicker and stop better, but there are ceramic brake
pads made to last double long as the the ones I'd prefer. One could do a lot of downhill and adjusting brakes sessions before they had to change pads n stuff. Also it's very easy.
 
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well here in morocco you only have cheap china stuff in local stores, or you need to travel to find the good ones, just think of it, extending you range and your disc brakes ? what could be bad with this ?
 
first, keep in mind that anything you modify in the contyroller could damage it and keep it from working at all, so:

if i had to guess i'd say you ground the abs pad to do regen braking. probably it will need to be grounded all the time, then you use yhour brake lever switches to engage it

it may not even support regen, not all controllers do

usually regen on these things is just on/off, so when you hit the brakes it will do whatever it's factory-designed to do; if hta'ts powerful it could lock up y our wheel. if it's a front hubmootor, that could flip the bike and send you flying over the bars.

some controllers respond differently at different speeds and different battery voltages, so it may not respond the same way in all situations, and you'l have to learn how it does what it does by experimentation.


if you have a battery with a separate port bms or no bms, regen will not be stoppable by the bms in the event of a battery problem, and the battery can be damaged, so you will need to monitor the process yourself to make sure it doesn't send back more current into the battery than the battery is able to handle for charging, or that it charges any cell higher than it's limts.


caution: if you have a battery with a common-port bms, and you're doing regen downhill with a full battery long enough to make the bms turn off the connection, the resulitng voltage spike in the controller can blow it up beofre you can stop braking.
 
why, i mean you got your power back and braking in top of it
Like regen myself, don't get much power back few % but it does save the brakes with practice. I bought me a CA3 from Grin to setup regen. Have a button to engage at a low level then use the throttle to increase breaking, will not stop the bike but really knocks the speed down or matinee speed down a hill. Trick is to slow down before stopping not the hard stops everyone does.
 
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