Replacing battery in MBP 17" 5,2 unibody. Where to buy?

[Sean Dempsey]

My unibody MBP 17" has a terrible battery. 263 cycles in, it says the health is 89%, but it doesn't feel that way.

I want to buy a battery and install it, but I can't find a reputable online retailer. I don't need/want to have Apple do it, since this machine is well out of warranty.

Anyone done this before and can recommend a good place to buy a legit OEM battery?

 

[GGJstudios]

I want to buy a battery and install it, but I can't find a reputable online retailer. I don't need/want to have Apple do it, since this machine is well out of warranty.

Apple is the only source for their built-in batteries, whether your Mac is under warranty or not.

Replacing the built-in battery in your MacBook Pro

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

Apple Notebook Battery FAQ​