8 month old MBP @83% battery health

[cluthz]

I really haven't checked the health of my battery in awhile and i was shocked that the battery only held 83% of it's max capacity, only 8 months after I bougth the computer. I've noticed lately that my computer doesnt last as long as before.

Both iStat and Coconut reports 83% battery health (4602 mAh of 5500 on max capacity)
I'm on my 160th cycle now, which should be normal since I use my computer daily.

As far as I remember my Powerbook G4 was on aprox 85% after almost two years of use, and now i'm scared that my MBP shouldn't even last a university lecture in a few months..

Is this normal or should I try get a replacement from apple?

Thanks in advance

 

[deadpixels]

i don't know if your battery is bad or not but mine is about a year old with 88 cycles and 87% health.

 

[sjb]

Have you tried calibrating the battery? It's not only good for the battery itself, but it'll make the measurements within the OS more accurate.

 

[landis]

176 cycles, 86%

it doesn't matter how old it is, more how many times it has been charged.

the OP's battery is actually doing better than the second poster

 

[djejrejk]

Have you tried calibrating the battery? It's not only good for the battery itself, but it'll make the measurements within the OS more accurate.

Agreed, mine dropped to 62%, but after I calibrated I'm back up to 89%. If you calibrate every 2-4 weeks, you will get much more life out of your battery.

 

[eyespii]

how do you calibrate the battery?

 

[ucsdmac]

how do you calibrate the battery?

calibrate the battery