A question about battery

Hello,
currently I'm waiting for the 2013 line and then I will decide what will I go with, but for sure some retina. Every laptop has "7 hours" on battery, I'm wondering if that's on 100% brightness while searching web or just doing nothing? How long is it on lowest or while using the notebook? Inform me with anything, thanks .

Upto 7 hours of wireless web.
Battery runtime depends on the cpu/gpu activity,brightness level, etc.
Battery and Power
Click the tab "Macbook Pro with Retina display Tech Specs"
http://store.apple.com/us/browse/home/shop_mac/family/macbook_pro
Note. #2 at the bottom of the page.
Best.

Similar Messages

Question about battery maintenance and longevity

I have a question about the efficacy of the built-in battery maintenance of the Lenovo Power Manager utility; specifically how it pertains to my W520, if that makes any difference.
With my previous laptop (an HP), any time I knew it would be parked on my desk for a week or longer, I would manually discharge the battery to about 40% and remove it to run the machine on AC power only. This proved to be an excellent practice that enabled the battery to work like new for three solid years. As soon as I stopped bothering with that, the battery life started dropping like a stone.
Lenovo's power manager offers the option to maintain the battery automatically or manually override it to maintain a charge within specific range. But I am wondering: how well this will work in the long run as compared to handling it manually? And how do the two options (automatic and manual range) compare with eachother in terms of maintaining long term?
I currently use the manual setting and keep it between 40% and 45%.

I would put into manual, you have more control. Automatic follows a preset rule, which may not apply in every case or battery model.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Question about battery life

Hi everyone,
I got my refurbished MBP 13" mid 2010 model two Friday's ago (July 16) from the Apple online store and I have some questions about the battery life....
Immediately after I got it, I followed all the battery calibration instructions from apple.com/batteries (and did it again after it because I was unsure if I did it properly). While it was charging, I was installing some recommended applications, one being coconutBattery. In the additional information section, it said that my MBP was 7 weeks old, has gone threw 10 battery load cycles, and had a original battery capacity of 97%. I am now at 17 loadcycles, with 94% original battery capacity.
Now to how much time I get with the battery... I have done some testing of my own, such as watching some movies (Tron and Star Trek First Contact, I'm a geek :D), basic web browsing (5 tabs open, reading blogs, watching a couple of 3 minute youtube videos) and listening to an audio book (iWoz) with a tab or two open. The best battery life I have gotten (basic web browsing) was 5 1/2 hours, with 60% LCD brightness, keyboard backlight off, and bluetooth off, with just Chrome and coconutBattery open.
Is this the average battery life for everyone else? I bought this because of its supposedly good battery life, and though I am very happy with my purchase, I just want to make sure that I have a fully working MBP.
Some other notes:
The battery meter next to the clock sometimes says that 98% is fully charged (I think it is just a glitch)
The estimated battery life is between 9-11 hours when brightness is at 30%-40%, airport and bluetooth is off, and keyboard backlight is off when I am doing text editing.
Thanks in advance.
EDIT: Forgot to say I have the 2.4ghz 250gb model.
Message was edited by: trsohmers

My MBP has been plugged in and fully charged for the past 2 hours and everything listed here has been the same, and here is some information in coconutBattery:
Current Battery Charge: 5434 mAh
Maximum Battery Charge:5490 mAh
Current Battery Capacity:5490 mAh
Original Battery Capacity:5770 mAh
Battery-Loadcycles: 17
Age of your Mac: 2 months (I have had it 2 weeks)
Charger is connected: Yes
Battery is charging: No

My iPhone 3GS is arriving soon, Questions about battery.

Hello all. I have both the original iPhone and 3G. I purchased a 3GS and it is about to be shipped.
I have a question about getting the MOST out of my battery.
When I receive the phone, what is the best technique for getting the most out of the battery? Like what I mean is... Should I get the phone, use it all day until it dies and THEN fully charge it? Or should I charge it to 100% right when I get it?
Or does it even matter?
Thanks!

Charge it to 100% out of the box. Then use it until it drains to zero, or close to it, and then recharge and you're good to go!
Doug

2 questions about battery change.

Well i got my first gen. ipod shuffle last yr summer and my warrenty ends this yr....
so will it cover the battery change or not? and um...do they still change the battery for the first gen. ipod shuffle since the second gen. ipod shuffle is already out there. ya so those are my two questions

The battery is covered under warranty.
His 2nd question was leaning in the direction of "now
that there is a 2G iPod Shuffle, do they still fix
the 1G iPod Shuffle?"
Going by a true definition, as you seem to want to
do, we should simply tell everyone, "When you send in
your iPod under warranty, you will NOT get it back.
Apple will probably just give it to someone else.
Sorry."
NOOooo... Apple will REPLACE your Shuffle with another one
AND will NOT warrant the replacement beyond the length of the ORIGINAL's warranty or 90 days whichever is longer.
That's all folks...

Question about battery life on brand new mbp

I have had my mbp 11 days now, and the battery life seems very short.
I have tiger woods 08 installed
20 minutes of playing and the battery life is down from 100% to 20%.
This seems very short, its not only playing games, the battery life seems to go down very fast when browsing the internet etc.
Cycle count is 8.
Can anyone tell me, is this what i should expect?

In particular read the article on calibrating the battery. If you haven't done this, then I suggest you try it first. If problems persist then followup with a call to AppleCare or your local Apple retailer.
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
Battery University

Question about battery replacement please

I have a B575 laptop. I'm looking to replace the battery. The question I have, the battery that came with the computer is rated at 10.8v. The replacements I've seen are rated at 11.1v. Will the voltage difference be harmful to my computer or shorten the life of the new battery, or is it a marketing gimmick where all batteries have an actual rating that varies slightly.
Please advise ASAP.
Thanks.

hi JustMeee,
Welcome to the Lenovo Forums.
In replacing the battery, it is ideal that you get a:
- battery with the same rated voltage (this is the specific voltage measurement at which the laptop can start functioning)
- battery with a lenovo FRU on it (this is to prevent any "unauthorized battery" error)
From this item,
There are two Voltage definitions: rated Voltage and maximum Voltage. The rated Voltage is the number of Volts required by the appliance in which the appliance is used. The maximum Voltage is the number of Volts provided by the battery when fully charged.
It's possible that the 11.1v replacement batteries that you saw is the maxmum voltage - which is ok and will not harm the battery nor the system but if this is the rated voltage, I recommend you stay away as it may do the opposite.
- Link to picture (page 80 of the HMM)
Regards
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Question about battery (MBP4,1 early 2008)

I have a MacBookPro4,1 early 2008 15-inches and I want to change the battery because the latter drops down to 0% in 10 minutes. Is this ( http://store.apple.com/us/product/MA348LL/A?fnode=MTY1NDEwMQ&mco=MTA4NDE2NDk ) the right battery for my MBP?
Thank You.
This is the report of System Profiler: (sorry but it's in italian)
Informazioni sul modello:
Produttore: Sony
Nome dispositivo: ASMB012
Pack Lot Code: 0
PCB Lot Code: 0
Versione firmware: 110
Revisione hardware: 500
Revisione cella: 303
Informazioni sulla carica:
Carica restante (mAh): 2370
Carica completa: Sì
In carica: No
Capacità a carica completa (mAh): 2370
Informazioni sulle condizioni della batteria:
Conteggio cicli: 129
Condizione: Batteria di servizio.
Batteria installata: Sì
Amperaggio (mA): 125
Voltaggio (mV): 12556
Impostazioni d’alimentazione del sistema:
Corrente alternata (AC):
Timer per la messa in stop del sistema (minuti): 0
Timer per la messa in stop del disco (minuti): 10
Timer per la messa in stop del monitor (minuti): 10
Riavvio automatico in caso di interruzione di corrente: No
Riattiva se cambia la corrente alternata: No
Riattiva all'apertura dello schermo: Sì
Riattiva se connesso a LAN: Sì
Fonte di alimentazione attuale: Sì
Lo stop del monitor usa l'attenuazione di luminosità: Sì
PrioritizeNetworkReachabilityOverSleep: 0
RestartAfterKernelPanic: 157680000
Batteria:
Timer per la messa in stop del sistema (minuti): 10
Timer per la messa in stop del disco (minuti): 10
Timer per la messa in stop del monitor (minuti): 2
Riattiva se cambia la corrente alternata: No
Riattiva all'apertura dello schermo: Sì
Lo stop del monitor usa l'attenuazione di luminosità: Sì
Riduci la luminosità: Sì
RestartAfterKernelPanic: 157680000
Configurazione hardware:
UPS installata: No
Informazioni sul dispositivo di ricarica CA:
Connesso: Sì
ID: 0x0100
Wattaggio (W): 85
Revisione: 0x0000
Famiglia: 0x00ba
Numero di serie: 0x00573232
In carica: No

Yes.

Question about battery notification.

Am I mistaken, or is there suppose to be a percentage number next to the battery icon on the upper right-hand corner? Is it just when you plug the phone in for charging??

That's a setting you can turn on and off...by default it's off...goto
Setting > General > Usage > then tap to enable
Message was edited by: ShadyMac

Question about full cycle charges and battery life

So I've had the new iPad since day 1 and absolutely love it, though recently I've noticed that my battery life doesn't seem to hold up as well as it has in the past. I've done three full cycle charges since getting it however during my latest one I accidently brought along my iPod wall charger and not the one that comes with the iPad. My iPad was fully discharged and I plugged it in assuming that in the 7 hour window I had that it would be fully charged within 5 hours, but this was not the case due to me having the wrong charger. After about 7 hrs of charging it was only at around 60-70% so I had to unplug it, bring it home, then plug it in once more using the correct charger. Probably a fairly obvious question but does this not count as a full cycle charge because I unplugged it? Should I perform another full cycle charge even though this most recent one was not even a week ago. I know you're supposed to completely discharge your battery as few times as possible so it worries me having to do it again so soon.
About battery life, I've noticed lately that my iPad battery seems to be depleting quicker than normal, and was hoping that perhaps this was caused by being overdue for a full-cycle charge which I may have flubbed as seen above. I'm aware of a majority of the little tips and tricks to prolong battery life however I'm not so knowledgeable on the "do's and don'ts" of charging the actual iPad so any information on that would be helpful. I should also note that unfortunately I accidently left by iPad in a hot car for a little over an hour and was tremendously devastated knowing what this can do to the battery, so could this be the main cause for a seemingly weaker battery?
Thanks for any feedback!

The quickest way (and really the only way) to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

Question about using new battery in old Powerbook

I have a pre-intel Powerbook G4, and the battery is pretty much toast (lasts about 15 minutes now). I have ordered a new battery for it, and I have this question about using it:
Am I smarter to keep the new strong battery out of the PB most days (as I usually work with it plugged in at home) and just pop it in when I know I will be out surfing on batteries? Or is it just as good living in my laptop 24/7 and only occasionally being called upon to do its job?
Current bad Battery Information below:
Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 1144
Remaining Capacity (mAh): 1115
Amperage (mA): 0
Voltage (mV): 12387
Cycle Count: 281
thanks folks, Shereen

Hi, Shereen. Every Powerbook battery wants to be used — drained and then recharged — at least every couple of weeks. If you've always used your Powerbook on AC power nearly all the time, and not followed that pattern of discharging and recharging the battery every week or two, it's possible that your use habits have shortened the lifespan and prematurely diminished the capacity of your old battery. Of course it's also possible that your battery is merely old, as a battery's capacity also diminishes with age regardless of how it's used. You didn't say how old the battery is in years, so this may or may not be an issue. I mention it only because it can be an issue.
For general information on handling a battery for the longest possible lifespan, see this article. My advice on the basis of that article and long experience reading these forums is that it would be OK to do as you propose, but I doubt that you'd derive any significant benefit from it. You would still want to be sure of putting the new battery through a charge/discharge cycle every week or two, even if you didn't have a reason to use the Powerbook away from home or your desk, because sitting unused outside the computer is just as bad for a battery as sitting unused inside it. And you should never remove the battery from your computer when it's completely or almost completely discharged and let it sit that way any longer than a day or two.
Message was edited by: eww

Some questions about the battery

I have a couple of questions about the battery in general.
Is it normal that my iPod Touch 4G charges very fast? It reaches 60% in only one hour and it's fully charged before it takes two hours. I know this is not bad but I'm just worried. How can I be sure if it's really loaded?
Is it normal that the battery is very quick empty when I'm gaming? For now I'm blaming this due to the quick charge.
Is it normal that for example my battery level is at 30% and when I put on standby or something or close a game, the battery starts rising for approx. 5% even 10% sometimes?
Those are my question, I hope they are clear enough. Thanks in advance.
Regards

1. The tech specs says:
Charging times: Fast charge in about 2 hours (80% capacity), full charge in about 4 hours
2. Heavy use like gaming drains the batery fater then other use. The tech specs say:
Video playback time: Up to 7 hours when fully charged
3.. Yes, the indicate capacity tends to rise after heary draining is stopped. The battery indicator is not that accurate is affected by temperature. Heavy use increases battery temperature and when it decreases battery temperature decreases.

Question about calibrating battery

I have a question about step 5, +Turn off the computer or allow it to sleep for five hours or more+. First off, does it mean let the battery completely run out and turn off the computer, or are we supposed to turn it off. Second, what is the purpose of letting it wait 5 hours before turning it back on? Thanks

Tucker77 wrote:
I have a query regarding this, my Macbook went to sleep after draining the power last night (following its first full charge). I plugged it in to recharge at 5:30 this morning and over four hours later, it still hasn't charged, or at least the light is still orange.
For optimum calibration, does it matter if I use the Macbook while recharging or should it remain off? Should it take over four hours to charge up again?
Yes, it matters I would let it charge completely until the light changes to green.
As for the length for it to charge, 4 hours is about right, could be a little longer with a complete drain. Check out [apples battery page|http://www.apple.com/batteries> for more info.

Question regarding battery and warranty

Hi all! I have a quick question about how and if my warranty applies to my battery. After about a year and a half of ownership (I have the three-year extended warranty), my battery has gone completely down the toilet. It wasn't a problem before, but this year I have to lug my T61p around a lot for lab work. My battery is now rated at... 39.75Wh when it shipped at 84.24Wh. This is a pretty drastic difference. In any case, I don't think that this is covered by warranty, but figured that I'd ask before I drop $180 on a new battery (ouch). And, speaking of, if my suspicions are correct, does anybody know where I might find a 9-cell battery for the T61p? All I'm seeing on Lenovo's website is the one for the N100... which doesn't... match very well. Yaknow.
Thanks a lot!
ThinkPad T61p [June 2008]: 2.5Ghz Penryn Core 2 Duo, 4GB DDR2 RAM, NVidia Quadro FX 570m 256MB, 160GB 7200RPM Fujitsu HDD, 1920x1200 WUXGA Matte LCD, Windows 7 RC1

Is either of these appropriate? I'm wary of the one on Amazon, as there are other (off-brand) batteries that are advertised as being Lenovo ones (though those generally sell for a lower price). The other one just looks like I'll have to call up to buy it.
http://www.amazon.com/Lenovo-43R9255-ThinkPad-Notebook-Battery/dp/B001DX9EKA
http://affordablepcsupply.com/products/IBM/REF/42T4511.html
Thoughts?
ThinkPad T61p [June 2008]: 2.5Ghz Penryn Core 2 Duo, 4GB DDR2 RAM, NVidia Quadro FX 570m 256MB, 160GB 7200RPM Fujitsu HDD, 1920x1200 WUXGA Matte LCD, Windows 7 RC1

Few questions about iPhone 4S

Hi,
Recently I got an iPhone 4S, it is my first new phone in a long time, before this I had an old nokia, so I just have a few questions about it.
I havve read a alot of horror stories about the 4S battery life, mine seems ok, here is what I would like to know
1) How long should a healthy battery last?
2) how long should it take to charge to 100% from 1 or 2%?
On my daily commute I use listen it to music and sometimes user twiiter/facebook. I also get alerted of emails when they come in. So far it has just about lasted just about two days maybe before I had to recharge. Is this about right? As stated above I am coming from an old nokia, which is very dated now but the battery lasted almost a week before I had to charge, so having to charge my phone this often is new to me. My iPhone is really great and I just don't want any problems. I have turned off all extras that I don't need.
BTW are the iPhone 4S battery issues a software or hardware issue?
Thanks

I attempted to read your post, but in amongst all the random, unrelated waffling, I couldn't actually find exactly what your iPhone related question for this "Using iPhone" forum was.
Would you like to clarify? Concisely.

A question about battery

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