[jamiemcf]

So after I installed that Macbook battery update thing I checked my battery levels via iStat and it's at 88% after 199 cycles and I've had it since July 06. My question is is how low does it have to be for it to be faulty and need changed? I don't wanna go to the store and get told there's nothing wrong with it.

[richwig83]

My understanding is that the health of the battery can be improved by calibrating it again!!!!

[jamiemcf]

I did that and it actually went down by 1%. You mean when you let it go completely flat and then charge to full again? I did what it says on the Apple website and like I said the battery health went down and not up.

[frdmfghtr]

I would expect to see that type of performance. After nearly 200 cycles, 88% of original capacity, I think, is pretty good.

I think that by "low capacity," Apple means something less than 50%. If you were affected, you would have seen battery capacity jump from 50% to 88% of original capacity.

(But I'm speculating)