Chosen Solution
Model A1342. Old battery was swollen - MAC worked fine. But made me nervous. Bought new battery and installed. Everything went fine. Charged with MagSafe Orange then green + 2 hours at green. Nothing. No response to power button or any of SMC resets.
Let’s do this: Take the battery out, now with nothing connected press the power button for a good 15 secs. Now plug in the MagSafe the system should spontaneously start up, did it and is the MagSafe LED Amber or not lit at all?
The battery fault with New one its sounds like the replacement battery may be faulty as the replacement supposed of charged so recommend contacting the seller and asked them for a replacement .
