MacBook Battery Health Question

The battery health on my Macbook is showing 61%.

Is this number alarming?

Is their a way to improve battery health?

At what point should I start shopping for another battery?

Thanks,

Have you tried calibrating it a few times? Charge it fully, then run it down to nothing, and charge it up fully again. Do that a few times in a row.

How old is it, BTW? How many cycles?


-Nick

351 cycles. Is that old?

I believe Apple says the battery is good for around 300 charges and after that will loose performance quickly.

hi, my macbook battery has 133 cycles and it is running at 70% and i have calibrated it....i've had it for 14 months...this seems a bit poor

Mine has 180 cycles and it's at 86%. It's about nine months old. I regularly charge it and cycle it down to sleep.

Well, I let the battery go down to sleep. Charged up to 100%. Did this 3 times. My battery health shows 87% now.

This even with 351 cycles.

I think that the battery is very sensitive now. Must stay calibrated all the time.

how do you get all that information about the battery?

I use the iStat Pro widget. Thanks battery info, I will unplug my machine and let it run down.

Yep, the ISTAT Widget.

http://www.apple.com/downloads/dashboard/status/istatpro.html

5 months MBP 17" (2.4 Ghz)
212 Cycles, and 94-97% battery health all the time.
Or, Full charge capacity (mAh): 6119

What do you guys think, as Apple says that after 300 cycles the health goes down, should I keep it with AC charger more time?

Is that bad?
Oh, this is my MBP btw...I noticed the topic is under MB.

Yes, compared to what I have and know about the batteries, it is bad. I have thirty more cycles, on a 5 months MBP, and I am currently 97% healthy.

You should try to recalibrate it.

It was @ 92 last week...it makes drastic changes for whatever reason..

how do you use your MB?

mine has 42 cycles and is at 5207MH... the figure jump a lot. yesterday it was 5228 and a month ago it was 5172...

A lot? that is just 1%. It is normal.

You can get more accurate information about your battery under System Profiler. I don't know if this is true, but I've read that the iStat widget is unreliable.

I assume you're replying to Chris.

Chris3d said:

Is that bad?
Oh, this is my MBP btw...I noticed the topic is under MB.

Click to expand...

hooray!!!