Full Charge Capacity (mAh) of macbook air 13' 2012 and time to charge full battery

Yes, that is ok...what else does it say in apple menu, About This Mac, More Info, System Report, Hardware, Power about the battery Capacity, cycle count, Condition, and Voltage?

Sounds like a healthy battery.

That is a great battery, as it should be so new.

Time to get to full charge depends on the depth of discharge, so if you do not discharge very far, an hour and a half is good. Some will vary over time, as will the capacity from day-to-day so I would not worry about that too much.

There is a good article in Battery Universityabout prolonging the life of Lithium-Ion batteries that shows battery longevity is a strong function of how deeply the battery is discharged. From a user perspective a discharge to 50% and recharge is a good compromise for battery life and useage. Deep discharging significantly shortens battery life.

If you look at that capacity you do see a decrease but I would not worry about it...my MBP goes down and then a day or two later it has gone up...the capacity will vary a little up and down day to day, partially depending on how it has been exercised and temperature. Li-Ion batteries are very temperature sensitive.

Looks to me like a healthy battery, I would not worry about it...and, like all portable devices, computer batteries are consumable items that will eventually need to be replaced. Luckily for most of us the compture get replaced before the battery...if you hit the 1000 cycle predicted life you are talking about several years of normal use.