MacBook Pro needs prolonged plugin to turn on

[amin]

My MBP (2.5GHz Core 2 Duo) won't turn on unless I plug it in for a very long time first. I thought it could be a battery problem, so I bought a new battery from the Apple Store, but I still have the same problem. Is there anything else I can try before taking this to the geniuses?

 

[Alchemyy]

Weird, try resetting the PRAM, this probably won't help but worth a shot.
Push CMD+Option+P+R while starting it up.

 

[amin]

Thanks, I'll try it!

 

[GGJstudios]

Weird, try resetting the PRAM,

NVRAM/PRAM has nothing to do with battery/power/charging issues. Resetting it will not help.

My MBP (2.5GHz Core 2 Duo) won't turn on unless I plug it in for a very long time first. I thought it could be a battery problem, so I bought a new battery from the Apple Store, but I still have the same problem. Is there anything else I can try before taking this to the geniuses?

Reset the SMC.

This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

 

[skir0987]

If you're talking about a 15 or 17-inch MacBook Pro make sure you're using the right power adaptor. I know that with my 15-inch, if I use a 60-watt adaptor from a 13-inch pro, it takes a while to charge before starting because there's no enough power. Your adaptor should be 85W.

 

[amin]

NVRAM/PRAM has nothing to do with battery/power/charging issues. Resetting it will not help.

Reset the SMC.

This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

Thanks! I haven't had the problem so far since resetting the SMC. Fingers crossed that it won't come back. Now I wish I had kept the other battery as a spare instead of throwing it away!

If you're talking about a 15 or 17-inch MacBook Pro make sure you're using the right power adaptor. I know that with my 15-inch, if I use a 60-watt adaptor from a 13-inch pro, it takes a while to charge before starting because there's no enough power. Your adaptor should be 85W.

Thanks, I'll double check. I always assumed that the Magsafe adaptors were all the same and have been using them interchangeably.

 

[GGJstudios]

I always assumed that the Magsafe adaptors were all the same and have been using them interchangeably.

They're not all the same, but you can use any of them.

 

[amin]

If you're talking about a 15 or 17-inch MacBook Pro make sure you're using the right power adaptor. I know that with my 15-inch, if I use a 60-watt adaptor from a 13-inch pro, it takes a while to charge before starting because there's no enough power. Your adaptor should be 85W.

As it turned out, this was the problem. I was using the adaptor from my MacBook Air .

 

[refurbished]

As it turned out, this was the problem. I was using the adaptor from my MacBook Air .

hahhaha! It happened to me too once. I felt pretty stupid when I found out.