MacBook Air won’t turn on charging cable red light only
I rarely use my MacBook Air (maybe once every 2 months, mostly use my iPhone). A few days ago I fired it up and it was running fine. I closed the lid and left it plugged in to charge. A few hours later I came back and it was completely dead and wouldn’t turn on. The light on the charging cord only stays red, even overnight it never turns green and the MacBook won’t turn on. There are no noises when i press power. I contacted Apple Support and they gave me several keyboard commands to try with no luck. One of them (I believe it was control, option or command, shift and power) did turn the light green for about 2 seconds then back to red. But that was it.
All Apple stores are closed due to covid19, so they referred me to a local computer store who will charge me a $99 service fee plus labor and parts. Is this just a bad battery that needs replaced or even a bad charging cord that needs replaced? If it’s the cord I can order that from Apple and save myself the service fee. Any other tricks I can try ? Thanks