I definitely did not leave the lights on. Lights are bright, AC is fine, etc. Out of the 2 (alternator or being discharged) I’m leaning towards battery being discharged. How can I test for that? Can I fully charge it back to normal and if so, would the CCA number go back up? If it was the alternator, wouldn’t honda tell me it was that and not battery since that is more expensive and harder to fix then putting in brand new battery. If it is the alternator, can that affect CCA?