Macbook air power issue
Hi, I have a Macbook Air 13' 2017 and I am experiencing some power issues recently. The battery is at service level and whenever i unglug the cord, it shuts down immedietly. At first I was not worried as I thought it's just a battery issue, however I've been told that even the battery was supposed be replaced it should have had at least some charge so that it doesn't turn off immediately.
Let me add that the laptop has suffered through a liquid spill about 2 and half years ago and only the battery was damaged.
Does anyone have an idea if it really is just a battery issue or it could be something else and if there are ways to figgure out the issue before taking it to a service center ?
MacBook Air 13″, macOS 12.1