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Hi, I have a Macbook Air 13 2011 which wont turn on unless connected to the charger. After starting I can safely disconnect the charger and the battery takes over but I can not start from battery alone. Already tried a different battery. I spilled coffee over the keyboard 2 years ago and didn’t touch it since then. Thank you very much for any suggestions.
Hi R P Its sounds like you might have damaged the power circuitry. Does the power LED light detect that the battery has a charge when it is not plugged into a power source? Does the computer sleep on battery power or turn off completely when you unplug it? If you did damage the power circuit you can run a hardware test to see if it detects any problems. https://support.apple.com/en-us/HT201257 The main power circuit is integrated into the motherboard so keep in mind there is not a lot of options for replacing it.
