You'll have to find out wether the machine charges the battery at all. If you have access to a multimeter measure the charging pins. The two outer ones are gound, the three inner ones should read something around 3.58 V each.
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If that is not the case you'll have trouble with the SMC (more likely and more troubling) or the DC in (Magsafe) board which is rather unlikely since your machine powers up on DC.
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If that is not the case you'll have trouble with the SMC (more likely and more troubling) or the DC in (Magsafe) board which is rather unlikely since your machine powers up on AC.
You'll have to find out wether the machine charges the battery at all. If you have access to a multimeter measure the charging pins. The two outer ones are gound, the three inner ones should read something around 3.58 V each.
If that is not the case you'll have trouble with the SMC (more likely and more troubling) or the DC in (Magsafe) board which is rather unlikely since your machine powers up on DC.