[minitank88]

well i have my macbook pro 15" for just about a month and few days. Everything is going fine, i love it, although i think the screen is a little loose, i made my peace with that. BUT recently i noticed that the battery life on iStat pro widget is 88 % in 1 month and few days !! is that normal ? or my battery is damaged ?

I never had a perfect battery ! it started at 98% , then i re-calibrated it and it was still at 98% it did not work.

I usually use the laptop at home and school. I charge it at night, and use it at school. If my battery runs out i have my charger to plug it in. I don't turn it off that often. I just close the screen lid and let it sleep.

If i do need to replace it, how much will it cost ? i have applecare

can someone advise, thanks

[JoshuaZ]

Your battery should be fine. iStat is probably just wrong. Try downloading and using iBatt. See if you get different results from it.

Somehow I doubt apple will replace it for free under applecare unless its noticeably messed up.

[Simon]

Calibration sometimes leads to slightly low full capacity estimates. Recalibrate and it will likely be back up there again. Full capacity of a new 15" MBP battery should be around 5400 mAh.