since I use my macbook pro primarily as a desktop replacement, is it possible to run it without the battery therefore saving the health of the battery???
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run macbook pro without battery???
- Thread starter thechidz
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Yes it will run without battery.
Laptop will run cooler, due to certain operation not running at full power with battery removed. There is a link on this thread to the info:
https://forums.macrumors.com/threads/414106/
You can run it, but your processors will be crippled. It's one of the "features" of Apple. The adapter doesn't provide enough power to fully power the laptop without the battery.
You can, but it will run at 1GHz.
As for how it affects battery life, I don't believe it will affect its total life span. You can run off battery every month or so, but even the effect of that is up to debate.
I've been running mostly in "clamshell" mode, with ACD and BT mouse/keyboard for over 6 months now. I use it on battery every week or two (actually using it portable), then swap the batteries every so often. I think their total life will be the same, though, no matter what I do.
That does not mean it's crippled. It's still faster than most laptops out there even when running without battery.
Yeah, it'll run at half speed, but lemme tell you, I don't use my battery a lot, I've only got 23 cycles on mine, it's about 6 months out, and health says 93%. I get the feeling I should calibrate it, but using your battery is a good thing, it keeps it healthy I think.
Thank you. The idea that a 1ghz laptop is "still faster than most laptops out there even when running without battery" is laughable.
That's an undelievable design flaw IMHO. You need a battery to run a MBP from the mains or you get penalized. It sounds laughable if it was not true. No wonder the power supplies are so small.
My current 4 year old laptop has about 2 minutes of battery life, and the battery is only every used once in a blue moon. So to save the battery when I got my MBP, this time I was going to remove it unless I needed it. This sucks big time!!
Seriously? Please explain.
Lemme guess, Magical Steve Jobs Power and the Holy Apple Trinity's powers of superiority over anything made by heathen PC manufacturers, provides more efficient processing power..
thats what ive been doing... I think I will just keep doing that...
its just that battery health is already down to 95% after only 20 cycles...
1GHz? Then it has to be software/Mac OS related issue, cause on Bootcamp XP I cant spot any difference (and 2.2/1 is a huuge difference running Crysis). I remove battery cause the fans work less as it seems the whole machine seems to give away heat faster that way.
Hardware Monitor and others display the actual clock speed. Both cores are still operating, but at 1GHz (test done on 17" 2.33GHz MBP).
http://docs.info.apple.com/article.html?artnum=305336
I'm not familiar with Crysis, but I presume it's more GPU intensive, than CPU. I'm not sure about the effect on GPU performance w/o battery in OS-X.
I would guess the lower fan speed and less heat are a result of the slower CPU clock [in Windows].
Install something like Notebook Hardware Control when you're in XP, and you'll see the speeds. They're throttled down.
That can't be true, the power adapter has to have enough power run the computer at full without help from the batter.
Think about it, you can charge the battery and use the computer at full speed at the same time. That means that the power adapter CAN supply MORE power than the laptop needs.
However, I wouldn't run without a battery because it would be playing with fire. If you pull the cord (easy to do with Magsafe) your computer shuts off like a power outage to a desktop. Not my idea of a good way to take care of your computer.
Think about it, you can charge the battery and use the computer at full speed at the same time. That means that the power adapter CAN supply MORE power than the laptop needs.
However, I wouldn't run without a battery because it would be playing with fire. If you pull the cord (easy to do with Magsafe) your computer shuts off like a power outage to a desktop. Not my idea of a good way to take care of your computer.
http://docs.info.apple.com/article.html?artnum=305336
This isn't something we're just saying; you can see it right @ Apple.
It has to do with surge current. The battery acts like a large capacitor. Although the power supply can handle the continuous current requirements of the MBP, there could still be surges (such as harddrive spinup) which could exceed the capabilities of adapter. With the battery installed, it can provide the extra current during those surges.
Oh, I see, it can supply enough for use plus battery but not enough for spikes or if you are drawing as much power as possible (probably need usb and firewire powered things plugged in and a DVD going). So they clock it down to guarantee you won't overdraw even though 99% of the time you won't.
Thats exactly what I was going to say. I do like the magsafe connector, but it comes out way to easily.
Hmmm... If I pulled the battery out of my TiBook, would it also run at half speed? Or is this "feature" only on newer books?