Can A Battery Test Good And Be Bad. As a rule you can remove the surface charge by turning on the key for about three minutes. That is what my batteries did before I replaced them.

The most likely scenario he said is that I had one bad cell triggering a bad reading. A utility program can be used to check the temperature of the system board and processor. That is what my batteries did before I replaced them.
If the battery is bad.
Load Test the Battery. I will bet its over 5 years old. Hereof can a car battery test good but still be bad. That is what my batteries did before I replaced them.

