Battery problem
2013 Chevy Tahoe with 120K miles. Battery was last replaced Jan '17. For the past 8 months, especially after a cold night or when we haven't driven the car for a day or two, the car shows low batt...
Forum Discussion
rjstractor wrote:jornvango wrote:
We have been to Autozone / O'Reilly's multiple times and every time the battery, alternator and starter tested 'good'.
Question- did they remove the battery and do a full load test? Just checking the static voltage in the car right after driving it only tells you that the battery has a surface charge and that the alternator works. A specific gravity test (hydrometer) was suggested but that's a little tough (impossible) to do on a sealed battery. I'm with the others, the battery is almost four years old and is toast.
Thanks. No, what they do is attach their testing tool while the battery is in its regular place. While monitoring the past few days in mild overnight temps, the car starts fine. For example, the past 2 days, we didn't drive the car and it started fine. Battery was at 11.9V before we started it, which probably means there's nothing drawing it very low while we're not using the car. Which also probably means that it's a battery problem then as many have suggested ... time to replace.
