If you wait for OWC to have a garage sale (usually monthly), you can often find an open box battery and save a little off the full price.
Sad to say, many counterfeit Apple parts can be found on Amazon, so be careful. Our most advanced Neural Engine for up to 11x faster machine learning. The Apple M1 chip gives the 13inch MacBook Pro speed and power beyond belief. Be warned that there are sometimes very cheap batteries on Amazon, but these never seem to function properly. Get 13-inch MacBook Pro starting from 110610 in our Education Store.
When you do replace it, go for a reputable supplier like OWC. You can continue to use your old battery for a while, but keep a close eye on it for swelling, which you usually discover because the trackpad starts not working. Left Right CPU Cooling Cooler Fan Module Replacement Part for Apple MacBook Pro Unibody 15 inch A1286 2008,2009,2010,2011,2012 5.0 out of 5 stars 1 29.99 29. Free delivery and free returns with a 100 money back guarantee. You can get a replacement battery from OWC and instructions for replacing it: Buy Kingston Apple MacBook Pro Early 2011 - 13-inch 2.7GHz Core i7 Laptop Memory RAM & SSD upgrades. The genius bar may have reset the SMC for you, and this might have helped. The fans are not making horrendous noises indicating that the fan is broken or that a foreign object is bouncing around in my computer, but more so you can just hear the fans operating especially in a quiet room. I currently have a 13 inch MBP early 2011 notebook that has a fan running constantly. Sometimes it can even swell and potentially damage your Mac. MacBook :: Early 2011 13 Inch I5 Fan Running Constantly Apr 8, 2012. A battery on its way out can continue to work, but can start being unreliable and shutting down unexpectedly. Get 13-inch MacBook Pro starting at 1199 in our Education Store. If you option click on the battery icon, does it say "Condition: Normal" or "Check Battery" or "Service Battery"? If anything other than "Normal", it's time to replace the battery.