Sure thing, how do I check the battery health?That's about the same I'm getting on Blackmagic with 5GB test size. It goes 100-200MB higher using 1GB test size.
I think that is normal for 128GB SSD since they have slower write speed than their 256GB or bigger counterparts.
I seems that in most reviews they have 256GB version, as well as most peoples posting these forum have something better than entry level model.
Could you comment your battery health? I curious to hear what other see on their new Air 2018 and which way it goes after first few charge cycles. Also do you remember what battery charge level your Air had when you unboxed it? Mine came with completely empty battery and would not even turn on until charger was plugged in. Battery seems weakening very fast on mine. Now just 6 charge cycles and it is already down to 97.9%. Hard to believe that would last anywhere near promised 1000 charge cycles.
Ok im on 4 charge cycles and 99.8 percent health.
Manufacture date is 2019-06-03OK. That sound about what it should be. Obviously I lost (again) in the battery lottery. Can you check manufacturing date? It tell that also in Coconut.
Could you turn your on when you first got it without plugging in charger?
You do realise battery apps don't know the exact mAh of your battery, it's an estimate, you may be worrying over nothing. Mine fluctuates from 4375 all the way to 4390. It's also possible your battery was underspeced slightly from factory hence the lower health.OK, so yours was just manufactured few weeks ago with fresh battery. Mine was about 5,5 months ago manufactured. They should put best before stamps on these.
Obviously long storage time in warehouses may cause batteries to deplete… But still I don't think battery should run down to 0% even at that time since power off consumption is very low usually on computers these days.
Usually Apple gear I bought had about 70-80% battery even if manufacturing date was not "fresh" and that is about what I expect them to be even today. Some peoples claim new transportation regulations require them to be shipped with empty under 30% battery but from what I read on those documents, it only applies to bare batteries not devices containing battery (which is obvious since they consume some power even turned off and depleting battery will kill the battery since Li ion batteries get damaged is stored empty).
Yes I have banding on this MBA, my 27" iMac at work and my Samsung S10 has it too.Yes I know but these do have strong correlation how battery can hold voltage. Also like I mentioned your iPhone X'es they have the same hardware and they have the same way to estimating the battery so there is obvious difference between the batteries. I'm sure if swapping batteries between the two units they would show the battery health also so that another iPhone now that has better battery shows better health and other not.
Battery capacity fluctuating is quite normal depending on load but as you can see yours is well within nominal 4381 or even above, just as it should. Usually in devices with good battery it will stay there for quite some time and deplete only after many months. For example in our iPhones the one that has strong battery has been abused all the time by letting battery run empty and so on but no sign of weakening while one with bad battery has been babied and still weakening all the time. So huge difference about what quality battery is in the device.
Could you also check if you seen any display problems in yours like I described here?
I found out that these have something to do with color profile especially if toggling between night shift on/off but even still these are this banding in those photos I posted. Especially I'm interest if your see that dark shade banding on Lagom LCD gradient test when toggling night shift on/off with Safari browser.