REcalibrating does not recalibrate the battery, but, rather, the charge reporting circuitry. Battery capacity on my MBP moves up and down a little and I just don't worry about it now. Sometimes it will report 100% charge, sometimes a little less. Run it down low and recharge and it comes back to 100%. The Lithium-Ion batteries seem to have a mind of their own.
As long as it says Normal for the Condition you should be doing fine.
Never have used that app...I rely on the internal report...apple in the upper left corner, About This Mac, More Info, System Rrport then Power under Hardware. Reports Capacity, Charge remaining, Charge cycles, Condition. Might be interesting to compare the system reported data with the Coconut app information. I suspect the app is just reading the System Report and giving it back.
Though I hvae never had a Capacity come out such an even number...mine moves up and down, and is always all four digits.
Just a thought, compare the capacity reported with that Design Capacity...just wonder if that is using a design spec for the battery rather than the actual capacity of the individual users' battery. Take a look and see what how they compare.
Charge Remaining (mAh): 6258
Fully Charged: Yes
Full Charge Capacity (mAh): 6258
Those are my readings from the Apple menu.
As you say, Coconut uses the same figures and compares them with
something called Design Capacity (6,700) , which is, I guess, what it
was supposed to be when it left the factory.
And those figures say you have 100% charge.
The algoritm that is used by the reporting circuitry sometimes differes a little from the ration you calculate from the actual charge data...I've noticed a slight difference on occasion...so it is not something to be too concerned about when you see a reported charge of 98% and you know it is charged.
Which brings up another point, the charging circuit will take the battery to full charge, if you leave it on the outlet power the charge circuit shuts down and you run on line power. But the battery will still trickle discharge a little until it comes down to something like 95% at which point the charging circuit kicks in again and tops it up to full charge, then switches off again...that keeps the battery from over-charging, overheating, etc. Part of the protection circuit.
Looks like you are in good shape irrespective to the details of the Coconut report.