Macbook Pro Retina Battery charge

[RestlessCaviar]

Hi all

Does the charge remaining and charge capacity look right to you?


Charge Information:
Charge Remaining (mAh): 8094
Fully Charged: No
Charging: Yes
Full Charge Capacity (mAh): 8399


Even though the battery indicator says 100%, I notice the 'charge remaining' value is still gradually going up. I've let the system completely discharge once, just to calibrate.

 

[GGJstudios]

Does the charge remaining and charge capacity look right to you?

Yes. It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. For further details, read the CHECKING STATUS AND HEALTH section of the following link.

This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

I've let the system completely discharge once, just to calibrate.

The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries.

 

[lvicini]

I've let the system completely discharge once, just to calibrate.

Hello,
Letting a Li-ion battery discharge completely is a bad idea as it shorten the battery lifetime dramatically. A Li-ion battery is behaving very differently than a Ni-MH or a Ni-Cd battery.

Cheers
Luca

 

[Gav2k]

Hi all

Does the charge remaining and charge capacity look right to you?


Charge Information:
Charge Remaining (mAh): 8094
Fully Charged: No
Charging: Yes
Full Charge Capacity (mAh): 8399


Even though the battery indicator says 100%, I notice the 'charge remaining' value is still gradually going up. I've let the system completely discharge once, just to calibrate.

It'll read 100% at about 95% of its true full capacity and then trickle up to its true capacity. Itll then discharge down to 95% again whikst on the mains tho itll read 100%. It's the same with its devices tho I think it's 98% for iOS devices.

This does two things.
1, it keeps the battery in good condition.

2, stops the 'I just unplugged my device and it dropped to x% within minutes' questions.

 

[tivoboy]

just noticed this too

I just noticed this too.
My design capacity says 8460, but current capacity says 8564, but current CHARGE says only 8142.

three cycles on the rMBP. Battery says 100%, wondering why there would be a near 4-5% difference?

 

[GGJstudios]

I just noticed this too.
My design capacity says 8460, but current capacity says 8564, but current CHARGE says only 8142.

three cycles on the rMBP. Battery says 100%, wondering why there would be a near 4-5% difference?

Read the CHECKING STATUS AND HEALTH section of the Battery FAQ posted earlier.

 

[NutsNGum]

New week, new "is my battery broken" thread.