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Message: <blockquote data-quote="94 DropTop" data-source="post: 844167" data-attributes="member: 8993"><p>Brand new battery. When im stopped at idle in drive with the headlights on the gauge will shake from 12-14 volts. Any other situation it will just stay at its 14 no problem. This is only while in drive when the idle is around 6-800. If I have the car in park where it is idled up to say 1000-1100 it has no problems. I have had this situation even when my battery was in the front. I alway thought it was the battery but now im starting to think the alt. since it has a brand new battery in it. Im driving the car to work tomorrow to check it out. Any other ideas guys? Since our alts. are 130amps it should put out around 80 on a load test right?</p></blockquote><p></p>