回複：As I understand, a battery need to be fully charged to be tes

I second 色大膽小. When the battery is drained, the test system always indicates a bad battery. I had that happened two times. Once occurred with a battery bought from Autozoon. The battery was drained due to lights on overnight. I tooked the car to Autozone. The tech tested it and told me the battery was bad. Then I said you need to replace the battery for free because it was less than one year. After he checked their computer system and confirmed warranty, he tested the batter again. Now you know the answer: the batter only needs to be recharged. It turns out the batter was just fine.