Will not power on from battery
I have a MacBook A1278 2.4GHz that will not power on from the battery or charge the battery. When I depress the power button it does nothing unless the Mag-Safe is connected and it will not charge the battery. I have 3 batteries and I have charged them in another MacBook, once my MacBook is booted up it shows them with 100% charge but if I power off it off and disconnect the Mag-Safe it will not power on from the battery. I have replaced the cable that connects the battery to the logic board and the problem still persists. There is no external or internal damage to my MacBook. When I connect the Mag-Safe to my MacBook the light turns green and if the battery is discharged it turns orange but does not charge the battery. There never has been any liquid spills to damage the laptop.
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