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thanks again for the link and advice.
Our system is very home made and 'trial & error' to keep the costs down. (so I could afford this terribly expensive rMB...).
We have never experienced any trouble with our devices in the last 15-20 years. The only exception is the cheap inverter itself.
The main problem is the distance (150meter from the inverter to our place) which causes some of the voltage differences, I think (but I am definitely no expert). But it works so I won't fix it...until I'll have to.

"Hold the post" have read that inverters & surge suppressors are not mutually compatible, so best to research more.

Q-6
 
"Hold the post" have read that inverters & surge suppressors are not mutually compatible, so best to research more.

Q-6

staying in the 'civilized' world for three weeks now and on regular mains.
My battery health has since dropped from 93% to 88%. 108cycles in 4 months. 4666. Original max was 5297.
Not impressed but enjoying my machine a lot.
 
I don't see any different trend than any other portable Mac I have owned. You will find similar concerns over in the MBP forum, for the most part people are getting alarmed about a few failures. If you want the Retina MacBook buy one, just use your Mac normally and charge it with the supplied charger.

View attachment 579028 View attachment 579029

If you look at the trend for the 13" rMBP it`s not dissimilar to the rMB over the first six months, if anything the range of the 13" indicates more systems with significant drops in battery capacity (green silhouette) over time (23 months). I could produce the same for the 15" rMBP. The battery is a consumable item, nor is it directly possible to determine longevity by the initial drop over a few cycles, as there are multiple variables; discharge/charge rate, operating temperature, charging temperature, battery usage etc.

If your MacBook, MacBook Pro, or Air has an issue with it`s battery, the problem will surface rapidly, and you will likely be in the minority, as can be seen from the charts.

Q-6

My experience with MacBook Pro is quite different: I just sold one 2011 model with 500+ cycles still at 94% health. The previous 2009 model I sold after 2 years with 280 cycles and 95% battery health.
My wife's MacBook Air 11" is almost 5 years old, more than 300 cycles and still 88% of battery health.

It's hard to make a credible statistic with a few cases, but it seems that the battery of the MacBook is wearing quite fast. I see many cases of health under 90% after a very few cycles....
 
My experience with MacBook Pro is quite different: I just sold one 2011 model with 500+ cycles still at 94% health. The previous 2009 model I sold after 2 years with 280 cycles and 95% battery health.
My wife's MacBook Air 11" is almost 5 years old, more than 300 cycles and still 88% of battery health.

It's hard to make a credible statistic with a few cases, but it seems that the battery of the MacBook is wearing quite fast. I see many cases of health under 90% after a very few cycles....

Unfortunately, I now tend to agree as can be seen below. The trend is now clearer, with the drop off in capacity for the rMB being more aggressive than 13" & 15" rMBP`s. Data from CoconutBattery; light dotted green line is the average battery capacity.

2015 1.2 rMBP
Screen Shot 2015-11-08 at 04.01.25.png

2014 13" rMBP
Screen Shot 2015-11-08 at 04.14.45.png

2012 15" rMBP
Screen Shot 2015-11-08 at 04.23.15.png



Q-6
 
Owned my rMB 12" since June, here's how mine stands:

Charge Information:

Charge Remaining (mAh): 5088

Fully Charged: Yes

Charging: No

Full Charge Capacity (mAh): 5141

Health Information:

Cycle Count: 37

Condition: Normal

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 8654


It will go anywhere between 8-10 hours on a single charge. I have no complaints thus far.
 
This thread has been super helpful. I've been debating between the 12" rMB and the 13 rMBP, and my current battery in my 2012 MBP is already bad so I don't want that to happen so soon on my new machine! XD
 
This thread has been super helpful. I've been debating between the 12" rMB and the 13 rMBP, and my current battery in my 2012 MBP is already bad so I don't want that to happen so soon on my new machine! XD
Well, your 2012 MacBook Pro is from ..... 2012, so the wearing on the battery could be absolutely normal (how many cycles?).
Btw I think is too soon to make assumptions on MacBook battery health.
Maybe it drops slightly faster to settle around 85-88% for a long time.
It is what happened to my wife's MacBook Air
 
Owned my rMB 12" since June, here's how mine stands:

Charge Information:

Charge Remaining (mAh): 5088

Fully Charged: Yes

Charging: No

Full Charge Capacity (mAh): 5141

Health Information:

Cycle Count: 37

Condition: Normal

Battery Installed: Yes

Amperage (mA): 0

Voltage (mV): 8654


It will go anywhere between 8-10 hours on a single charge. I have no complaints thus far.

I am seeing the same on my own 1.2, time will tell as it`s still a little early in the rMB`s lifecycle, although the current trend looks to be deeper than the MBP`s it may well stabilise and to some extents that is what CoconutBattery`s charts is currently indicating. Nor is significant depreciation of the batteries capacity observed by all.

Q-6
 
This thread has been super helpful. I've been debating between the 12" rMB and the 13 rMBP, and my current battery in my 2012 MBP is already bad so I don't want that to happen so soon on my new machine! XD
Unfortunately this is exactly why these threads more often than not tend NOT to be helpful. They generate FUD. People start finding problems where they don't exist. They start repeating these non-problems in other threads. People start making purchasing decisions based on a "problem" that doesn't exist.
 
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Current reading: 7 months/41 cycles/5019 mAh. It fluctuates between 4985 mAh and and 5064 mAh.
 
9 months/47 cycles/4775

After discharging and then recharging

9 months/48 cycles/5015
 
Is this degradation in battery capacity normal? I've already lost 11% since September. My MacBook Pros and Airs seemed to keep their design capacity a lot longer. Should I contact Apple about this?
 

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My Retina MacBook, purchased July 2015, has 297 cycles on the battery and reports 78% battery health. I'm skeptical of this battery design and intend to give AppleCare a hard time.
 
My Retina MacBook, purchased July 2015, has 297 cycles on the battery and reports 78% battery health. I'm skeptical of this battery design and intend to give AppleCare a hard time.
you are ahead of me. 247 and 84%. which i'm not happy about given, i'm only losing 15% of reported battery life already with less than a year on it

most likely when it goes under 80. i'm taking it to apple
 
My understanding of AppleCare is they replace batteries if health goes under 80 right?
 
My understanding of AppleCare is they replace batteries if health goes under 80 right?

Dunno. But I intend to find out. The battery health report fluctuates, though; right now it's reporting 84% health so I probably will need to wait a few months until it's consistently crappy. AppleCare has always been very, very good to me. I'm sure they will take care of this failing battery.
 
Unfortunately this is exactly why these threads more often than not tend NOT to be helpful. They generate FUD. People start finding problems where they don't exist. They start repeating these non-problems in other threads. People start making purchasing decisions based on a "problem" that doesn't exist.

Absolutely. Apple are infallible and this problem simply doesn't exist. All the battery figures people have posted of their own rMB are a lie! And besides, a 10% loss off the advertised battery time within less than a year is entirely acceptable. After all who cares about a potential half an hour to an hour's worth of usage. And if you keep your MacBook plugged in all the time, you'll never experience this supposed "problem". Nevermind the whole point of the MacBook being a mobile, cord free computer.
 
Absolutely. Apple are infallible and this problem simply doesn't exist. All the battery figures people have posted of their own rMB are a lie! And besides, a 10% loss off the advertised battery time within less than a year is entirely acceptable. After all who cares about a potential half an hour to an hour's worth of usage. And if you keep your MacBook plugged in all the time, you'll never experience this supposed "problem". Nevermind the whole point of the MacBook being a mobile, cord free computer.
Ten percent? I'm seeing 20% in six months. It's not great. But, Apple does take care of its problems.
 
Absolutely. Apple are infallible and this problem simply doesn't exist. All the battery figures people have posted of their own rMB are a lie! And besides, a 10% loss off the advertised battery time within less than a year is entirely acceptable. After all who cares about a potential half an hour to an hour's worth of usage. And if you keep your MacBook plugged in all the time, you'll never experience this supposed "problem". Nevermind the whole point of the MacBook being a mobile, cord free computer.

Job's truth extortion field at its finest!
 
As an extremely heavy portable user, whenever this thread is bumped back to the first page I report my numbers:

342 Load Cycles
4414 mAh Maximum Charge
83.4% Battery Health

All according to Coconut Battery.

Of note, it's been as low as 80.1% and has steadily crept up to 84% over the past month.

I received this rMB the first week it was released last year. I did purchase AppleCare.
 
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