Quote:
Originally Posted by mejim707
Im using INPA now. At IDLE it’s at 14v exact. When I rev the gas the voltage remains the same. When I let off the gas the voltage dips to 13.7 or so then settles on 14 exactly.
The battery on his laptop is shot so unfortunately I can’t drive around with it I can only do this at home. Do those numbers sound like a bad battery? There is another 95 amp hour battery down the street I can just go pick up for 200 bucks. Since the age of the battery is five years plus maybe it would be a good idea to just do that today. I can use ISTA to register the new battery.
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Good, sounds like your alternator is okay. Though driving around and monitoring it would be better confirmation, what you have looks good.
Definitely pick up a battery just as a matter of preventative maintenance. Cooler weather is coming anyway and if that battery is border line, it won't be for long. Was going to ask you if temperatures were falling there when you said the performance tanked after being mostly normal.