You could also look for a accelerometer based switch. I've seen bike tail lights that use one. Pretty effective !
Peri

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------ Original Message ------
From: "t ray via EV" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Cc: "t ray" <[email protected]>
Sent: 09-Aug-25 17:13:48
Subject: Re: [EVDL] brakes lights regen

redscooter,

I have seen tail-light assemblies for motorcycles that turn on when the
vehicle slows.  I would imagine that somebody makes an aftermarket circuit
box to do that for you.  A relay and a mercury tip-switch could give you
that function also, maybe using bolt-on LED displays instead of the OEM
brake lights.  That would avoid tinkering with the stock brake lights and
wiring.

On Sat, Aug 9, 2025 at 9:40 AM redscooter via EV <[email protected]> wrote:


 when drivers use strong 1 pedal regen driving in traffic  the brakes
 lights do not come utill  the last 5-10 miles per hour to total stop.

 this can cause possible  rear ending. I'm used to following  gasers that
 there brake light show much more.  my older leaf has weaker regen  so I
 must use  brakes , which shows drivers  behind me, i'm stopping or
 slowing.

 i also flash my brake lights when slowing in heavy traffic.

 someone needs to work on a fix for brake lights to come on under heavy
 regen.

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