NO...this is the worst thing that you can do! You can damage your alternator just by doing this. The alternator monitors the battery voltage and adjusts itself accordingly. If the alternator doesn't "see" the battery it will think it's dead and begin to put out full power. Keep the battery off long enough and you can burn the alternator out. This is why when you get a new alternator there is always a sticker on it warning you to make sure your battery is fully charged before installing the new alternator. To test the alternator simply, just get a multimeter and put it on the outputs of the alternator (while the engine is ideling). The reading should read about 13-14 volts. For a more accurate test i would bring the car to a mechanic with a load tester to test your charging system. They will be able to pin point the problem. --- In dmcnews@xxxx, "sk1pper" <sk1pper@xxxx> wrote: > A sure way of testing the alternator is to start the car then remove one of the battery leads (preferbally the positive), then test the pos and neg for 12-17vDC. This will tell you if the alternator is producing electricity. I had to change my alternator and all was ok partly due to the old motorolla only producing 68vDC and the old rusted nuts causing resistance shorting out the charge. If you need to change the alternator, I have a list of part numbers that will get you a straight replacement from your local parts store, OR if you are like me, more power is always the way to go. I will have a new web page up in about 2-3 days @ www.sk1pper.com that has pic of mine and how i put a 140a alternator on. > > Let me know if you need any more info or if this even helps ... > > > sk1pper landry