Battery dies with headlights

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Nov 20, 2006 | 07:47 PM

#16

Bear River

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Joined: Nov 2004

Posts: 4,901

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From: Salt Lake City, Utah

Quote:

Originally Posted by Pablo-UA

Justin... But the bigger alternator provide more power then use headlight. So battery does not die. Old truck with carburator may run up to 400 miles without the alternator, new fuel injected trucks kill the battery if alternator is disconnected in 100 miles... With headlight battery dies in 2 hours.

I'm not completey sure we are on the same page here. There would be no issue with the alternator, because this guy's battery did not go dead with engine running. It went dead because he had left the headlights on. Alternator output is irelevent for this issue. Nothing personal, just from the way you a focusing on the alternator implies that you might think it was draining the battery with the engine on.

This said, just charge the battry back up and see what happens. In any case, don't wait too long to charge it, since a partially charged battery that sits is soon to be a dead battery.