Could anyone tell me if this is normal or not

[iGlass]

I have been using my Macbook Pro for about a month and my battery health has dropped to 91% (iStat shows 92%) which isn't looking good at all. Could anyone tell me if this can be fixed ???? I did the battery calibration yesterday but it used to be 94-95% before. Right now it's getting lower and I am a little bit worry about this right now

 

[zwodubber]

I have been using my Macbook Pro for about a month and my battery health has dropped to 91% (iStat shows 92%) which isn't looking good at all. Could anyone tell me if this can be fixed ???? I did the battery calibration yesterday but it used to be 94-95% before. Right now it's getting lower and I am a little bit worry about this right now

That does seem odd, here's mine for comparison

 

[gorskiegangsta]

Check the Power tab in System Profiler just to double check whether CoconutBattery is giving you correct info.

Try doing battery calibration again:
charge the battery fully;
let the battery die and let the computer to go into hibernation;
wait approx. 5hrs, then plug in the charger and charge it fully again

If you still see reduced capacity, contact Apple; you may have a defective battery.

 

[Lord Appleseed]

This program is bollocks, mine shows 105% battery health.

 

[GGJstudios]

I have been using my Macbook Pro for about a month and my battery health has dropped to 91% (iStat shows 92%) which isn't looking good at all. Could anyone tell me if this can be fixed ???? I did the battery calibration yesterday but it used to be 94-95% before. Right now it's getting lower and I am a little bit worry about this right now

Your battery health will fluctuate up and down over time. It's perfectly normal. Proper calibration instructions are in the following link. This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

This program is bollocks, mine shows 105% battery health.

Calibrate it.

 

[Lord Appleseed]

Calibrate it.

Its a bit too much work just to find out if the battery has lost 1% after a month or not.

 

[GGJstudios]

Its a bit too much work just to find out if the battery has lost 1% after a month or not.

It it's showing 105%, it's not accurate. Calibration isn't tough to do. You can do it overnight.

 

[Lord Appleseed]

It it's showing 105%, it's not accurate. Calibration isn't tough to do. You can do it overnight.

I know its not right. I just meant that this whole hysteria about a % more or less is just not worth the time....in my opinion.

 

[GGJstudios]

I know its not right. I just meant that this whole hysteria about a % more or less is just not worth the time....in my opinion.

You're absolutely right. It's really not a big deal if it's off or if it fluctuates. I mention it in your case because it's not a problem with coconut battery that makes it show 105%, as you suggested; it's the lack of calibration.

 

[squeakr]

What's up with the wattage usage, 651.7?

 

[Fubar1977]

What's up with the wattage usage, 651.7?

HaHa, mine always shows this sort of figure when it`s plugged in.

The main reason to calibrate is that it makes you battery indicator more accurate.
It has no real effect on the actual health of the battery.