A1322 A1278 New Laptop Battery Replacement for MacBook (Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012) MB990LL/A MB991LL/A MC375LL/A 661-5229 661-5557 020-6547-A [11.1V, 66.6Wh]

Decent price, prompt delivery, is working just fine.

The battery life has been stellar, easily powering through a full day of rigorous use. It’s like having a new laptop but without the hefty price tag.Moreover, the battery fits snugly and the build quality feels solid and dependable, exactly like the original. It’s evident that this battery was engineered with precision to match the A1278 series perfectly.I am thoroughly impressed with the performance and quality of the battery. It’s revitalized my MacBook, allowing me to continue my work without any interruptions. Absolutely worth every penny and deserving of a five-star rating. Highly recommended for anyone looking to extend the life of their MacBook without breaking the bank!

Do not buy. Wouldn't charge past 70%. Even then, it lasted less than one hour of VERY light use. I'm talking reading emails. And half that time the screen was blank from inactivity. Now I need to put the 11 year old Apple battery back in, as it still lasts longer than this garbage.

Super easy install took about 10 mins and comes with the screwdrivers you need. Super simple, doubled to tripled my unplugged time now, as I was using the original battery. Thanks for great deal!

Super easy installation and brought my old macbook back to life.

Haven't had any issues yet and so far the battery is lasting well. I’ll post an update a couple months down the line to see how the battery holds up.

Just as described