Battery
my battery icon sign even if its not charging showed a charging battery and is not charging when plugged. What could have been wrong with my macbook air?
MacBook Air 13″, macOS 10.15
Did you already try the troubleshooting, mentioned in this related article?
If your Mac battery won’t charge - Apple Support
Depending on the age and use of your MacBook Air, the battery needs to be replaced by Apple.
Check this Apple page to find out more about your options: