Re: Parasitic Drain?
The Nu-Rex alternator I have is basically a 10si, but probably made in China or somewhere else. It's parasitic draw is so slight, I have left the car with the shut-off switch on for weeks and not had a problem. I usually turn it off when parked overnight, but I have been known to forget, just like everyone else. The main reason I have for shutting it down is just because you never know when a diode is going to fail. That being said, I never bother shutting off the shut-off switch if I am just parking for short times.
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