Amazon light kit problem

Joined
Aug 6, 2022
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11
Hey guys. I installed one of the $40 amazon light kits on my bike (24v/450w/33aH on a rebuilt Schwinn). It's wired directly to the batteries for power and works fine when the bike is off. As soon as I flip the switch (toggle switch and 50a breaker in series) to power on the bike itself, the lighting system goes dead.

HUH ?

Do those kits have some sort of low-voltage shut-off and poweringup the bike itself drops the voltage below that value ? I am at a loss here since it SHOULD be completely indepandant of the bike itself.

One of the kits https://www.amazon.ca/Headlight-24-...0648&sprefix=ebike+lights,aps,110&sr=8-7&th=1
 

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