Quote:
Originally Posted by Ptero
You need a gauge to verify that you need to replace your 7-year-old battery? I use a load tester for that but I keep it in my tool box. Also, the bird is not a yaw string. It conveys a lot more information.
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Well, I use a "yaw string" more for severe Weather reporting, but the longevity of a battery is not mutually exclusive. I've had some that have lasted 2 years under normal conditions, and this one, which starts the vehicle at 100F or -10F and is pushing the 7-year mark under severe conditions.
The odd part -- I engine-off coast and run the headlights, ventilation blower, and sometimes the rear window defrost under batt only. So far all I've noticed an A/C-like draw from time-to-time, which I suspect is the alternator. I have a multimeter, but it reads the voltage as 12.5V+ across the terminals when cold, and 14.1V+ when operational.
My fear is a failing batt with an overworked alt, but how do I make that conclusion?
RH77