10.6 falsely reports 'service battery?' ... I think not
Over the last couple weeks, I've been going back and forth with readers who truly believe that Snow Leopard is reporting battery errors when they have a perfectly good battery. There's even a substantially large thread in Apple's Discussions forums about this topic. I've been notified of that thread many times, accused of not covering real issues, hiding the truth and just plain refusing to believe that it's an issue with the Operating System.After trudging through all of that, I've determined that it's a whole bunch of hoopla. I'm not saying that some of these people aren't experiencing real issues with the software -- just the sheer amount of complaints in the discussion forums would say there are problems -- but the "Service Battery" complaint doesn't appear to be related to software issues at all.
One of the big differences between Leopard and Snow Leopard is how they report issues with the battery. Leopard didn't report issues in a place where most users would know to check: System Profiler - Power - Health Information. Snow Leopard reports issues directly from your Menu Bar as shown in the picture. This difference caused a real stir in our tips box because many users never knew that their batteries were bad before Snow Leopard. "My battery isn't bad, it worked fine until I installed Snow Leopard" -- Yes, it may have worked fine but that doesn't mean it didn't have issues before the upgrade. Apple just made the problems more noticeable in the OS. In fact, they're helping their users catch them sooner.
Most of the time, people don't realize their battery has issues until it REALLY has issues like 20 minute run-times, random shut downs, the black "x" in the battery icon, etc. All of these are issues we (technicians) use to identify a bad battery. These new battery checks could actually help you find out your battery is bad before the warranty runs out; before it gets to the point of no return.
Genius Bars and Apple Authorized Service Providers now have a special utility that actually reads the health information directly from the battery and can determine why the Operating System says the battery needs serviced. Most of the time the problem will fall into two categories: battery failure or depletion. This diagnostic tool is actually a game-changer in the world of Apple's battery warranty: batteries are no longer automatically covered through the first year. If the battery legitimately fails, they'll replace it free of charge. If you happen to deplete the battery within the first year, you'll pay for a new battery.
Take all of this information with a grain of salt. Apple IS helping us by having the OS show us when the battery fails, but they've also made warranty battery replacements a little more fair on their end. Having blanket warranties for a year probably cost them a lot of money considering it's pretty easy to deplete a battery within that time if you don't take care to keep it healthy.
I've had the battery in my MacBook Pro for 9 months now. I have 245 cycles on the battery, 3-4 hours of pretty heavy usage (without the killer graphics enabled), and 99% health rating according to iStat Pro. I'll leave you with a few tips to help maintain the health of your battery:
- Never leave the machine plugged in all the time. Laptops are meant to be portable. Using it as a desktop that never runs on the battery will destroy your battery life.
- Cycles are your friend. Never letting the battery complete a cycle will greatly diminish your run-time. Try to avoid charging the battery unless it's drained past 30%. Any time the battery drains past 50% and charges more than 50% counts as a cycle. The farther you let it drain before the charge - the better its overall health will remain.
- 30 cycles in a year is not a good thing. ;)
- Let the battery drain completely a few times a week.
- Never let it sit for long periods of time without use. Batteries need to be loved or else they won't love you.
UPDATE -- There have been a lot of opinions expressed in the comments about the proper care and feeding of Apple laptop batteries, especially the newer lithium ion units. I'm happy to see that this article sparked such a healthy debate. To be clear, my tips here are not directly based on Apple's recommendations. They are driven by my personal experience servicing Apple laptops and Apple batteries for customers, and my own battery health history. For a different take on proper battery care for modern gear, we were pointed to feedback from Marco Ament that's worth a look. If we have electrical engineers or battery designers in the audience that wish to weigh in, we'd be happy to hear from you.
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Source: http://apple.com/batteries
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Over the last couple weeks, I've been going back and forth with readers who truly believe that Snow Leopard is reporting battery errors...
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I had the same problem and went to the apple store in Dedham,MA. They ran a program from usb drive and told me that I need to buy new battery as my current one is used up. I did not buy it at that time. Then when I bought Belkin N wireless router and tried to connect my macbook to it I found that it was not able to. This seemed to be case with Belkin routers post Snow Leopard!! So I was forced to downgrade to 'regular' leopard and it worked. Both of my issues were resolved. I mean it no longer shows replace soon messages and connects wirelessly to internet.
December 10 2009 at 11:23 AM Report abuse Permalink rate up rate down ReplyPlease make this Article frontpage again - Apple needs to wake up and smell the Snow Leopard in the ass; or at least give us 10.6.2 with updated "battery-properties".
After going from Leopard to Snow Leopard on my MBP (summer 2007), my battery went from 2 hours to 5 minutes, and the shutdown happens without warning!
My early '08 macbook pro is mostly used when plugged in. As such, it only had 16 cycles after 14 months of use. Still it got about 4 hours from the battery when unplugged (one week before installing SL). Installed SL and the first time I tried to use it unplugged afterwards it died in 25 minutes without any warning. Thinking it was some kind of OS bug, I tried to boot it again and 10 seconds into the boot sequence it went black again. The battery LEDs indicated 80% charge remaining. Visited the 'genius' at the Apple store who started to give me some line about 'cycling' the battery (hey, these are Li-ion batteries right?) and I told him I would not be happy about having to pay for a new battery. He ended up giving me a new battery and all seems fine now, but this has to be more than a coincidence with all of the other reports I'm seeing on the web. Add this to the fact that SL killed the printer/scanner configuration on ALL the macs in our house (we have a Canon all in one on the network) and I have to say that Apple may be having some quality control problems. It's definitely shaking my confidence that Apple's QC is better than Microsoft's.
September 27 2009 at 11:50 AM Report abuse Permalink rate up rate down ReplyAh. I remember a time when pretty much all Mac journalism was like this. Some group of users would be complaining about some service issue and the whole rest of the Mac faithful would immediately pounce upon them and spend only the energy it takes to find a reason to make the issue disappear, but never any more than that. That was back when everyone thought the Mac was doomed and there was somebody saying that several times a week.
That this article seems so out of place in its approach and people are largely reacting to it as condescending rather than cheering the writer on is a measure of how far the Mac community has come and more importantly, how much more skeptical the userbase has become of official stories from Apple.
I think Apple has its worst dictatorial excesses to thank for this cultural sea change in the Mac-using culture. We are no longer totally, utterly willing disciples. We have already had to hold our noses over a fair number of Apple's decisions. We are no longer prepared to just accept Apple's PR-laden cynically hypocritical stance, and we no longer have very much respect for writers who toe that line in an unexamined way.
Sorry, but..
You shouldn't need a Marco followup or battery engineer consultation to find reasonably accurate info on Lithium-ion technology. Battery-speak can be technical if you get into the nitty-gritty, but to repeat such basic misinformation (multi-week deep cycling) without a cursory technical search is reprehensible IMHO.
Just ran SL in 64-bit mode on battery power and it dropped all the way down to 13% before finally warning me of low power as it should. This is the first time it has managed to drop to a percentage that low without prematurely and abruptly shutting-down without warning. Something is definitely up with SL 32-bit mode.
September 25 2009 at 6:42 PM Report abuse Permalink rate up rate down Reply"Lithium-ion" batteries, eh?
I bet you use incandescent-photon light bulbs too. :)
I have removed the TUAW RSS Bookmark from Safari. Apart from checking the comments I have on this one article, I no longer wish to frequent this site after this diabolical article.
There are plenty more (more professional) fish in the sea.
Now this is how you cover this issue....these are the types of posts I've seen TUAW do in the past.....(such as with the iPhone App Approval Process' lack of transparency)....let's hope they return to this style of writing.
http://www.szilveszter.ca/blog/archives/447
It also seems to me that Mr. Carr's is a new writer to TUAW. He has only posted 14 articles....and from my search it seems like he started mid-September.
After a poorly researched article, a tone that is as uninviting as I've ever seen on an AOL weblog and his poor excuse for an "update" to his original post, I hope we can see a change shortly.
It would be disappointing if one poor blogger took away from the overall experience that I tend to have, making this one of the first sites I visit day in and day out.
PS....My battery continues to fluctuate. After my latest calibration, the overall charge has improved. Still no where near where it was just a few weeks ago under Leopard. Even more confusing...the maximum charge the battery could contain has bounced around so much (up & down) that it even hit -1 mAh...huh?
My experience - the week after installing SL, my 1 yr old battery seemed to need service, according to the icon. For the last few days, condition is normal again. I have done nothing but ignore the problem, and voila! It went away.
September 24 2009 at 10:12 PM Report abuse Permalink rate up rate down ReplyHot Apps on TUAW
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