So I got a second hand early 2011 MBP. It runs perfect except for the battery. It lasts around 30 minutes without using it. Around 10 to 15 with intensive use. I am a very DIY guy so I bought a replacement battery for my MacBook. Unfortunately the model I bought is the A1281 meanwhile the battery model that is inside the MBP is a A1382 model. Are they compatible? Will I notice any difference if I buy the exact model or install the one I got? Thanks!