Hi, I've got an Early 2011 Macbook Pro 13". The battery has been shown as "service" for a long time now (more than two years), but I had never had trouble with using it plugged in before. However, since yesterday the charger green LED goes off as soon as I turn the Macbook on. If I leave it turned off and the charger plugged in, the light is on. But when I turn the laptop on, the light goes off, macOS does not detect the charger and (since the battery cannot hold power anymore) it turns off after a minute or two. I've tried to reset the SMC, removed the battery, tried to turn the Macbook on without it, all to no avail. I believe that it can be an issue with either the charger, the battery or the Magsafe board. I don't believe that it's the charger, since the light is on when the laptop is off. So that leaves me with either the battery or the board. Since I currently cannot afford buying both, if you were to guess, which one would you say is faulty? I'd also appreciate any advice on other things to try before buying the parts. Thank you in advance.