First time poster: please help! I have a 2008 Honda CR-V with 102,250 miles on it. Since I live in Chicago and park outside, my car is used to being exposed to all kinds of weather. I've had all the recommended oil changes and other regular maintenance done since I bought it in 2011, and I had a new battery from AAA installed in June 2018.
A few times since I got the battery, I'll go to start the car, and it won't turn over. I haven't left the lights on nor anything else that would drain power from the battery. Each time I've called AAA, and they jump the battery but say that everything indicates that the battery isn't dead. The other morning I went out to start the car, and the remote unlocked the car, but nothing would start, the car wouldn't turn over, the locks and windows wouldn't work. AAA came and jumped it and said the battery and alternator were working normally. I took my car to a highly recommended mechanic and they checked the alternator, battery, electrical system, and computer system, and they said everything is functioning perfectly well. Their only advice was to bring the car in for a new battery if it happened again (and also said that car batteries from AAA weren't the best). Also, maybe three times when I've started the car, the time display on the radio needs to be reset with the five-digit code. So: does anyone have any idea why every once in a while, my car won't start?