The battery looks very similar to the previous one. So similar, in fact, that it's identical in size and shape, and has the same model number (A1331).

Even so, it still makes continued use of Tri-Wing screws to secure the battery in place. Why Apple? Why? Why can't you free us from the oppression and tyranny that is Tri-Wing screws?

Be wary though...appearances can be deceiving, and that is certainly the case here.

The battery in the A1342 Mid 2010 is 63.5 watt-hours and weighs 355 grams.

In contrast, the earlier A1342 has a battery of 60 watt-hours and weighs 347.5 grams.