Running without the internal battery

has anyone tried to run the MB without the battery ? If so have you noticed a speed drop? . Reason I ask was I have an early MBP which runs at 2Ghz and without the battery dropped to 1.8ghz

Thanks for that, yes sometimes I use my laptop as a desktop foe extended period of time and that is why I remove the battery

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How long does the internal battery usually last?

I keep seeing posts about the date going back to 1969 so I'm wondering what timeframe am I looking at to replace the "watch" battery. I bought my PB back in '04. Thanks.

Until recently, I thought the PB backup batteries simply ran down. While visiting the Apple Store in Portland OR a couple of weeks ago, I mentioned this to one of the techs and he said the PB battery was rechargeable like the ones in the older G3 PowerBooks.
I was given a 2003-vintage PB17 recently that had been in storage (off power) for about six months. The backup would not support the time needed to change from battery to corded operation when running down the main battery. After having the PB on wall power for several weeks, I tried it again and the backup battery was able to allow the power switchover without the computer shutting down completely.
Based on a sample size of n=1, the backup could be rechargeable. My big grip is that the batteries are hard to find and darned expensive. Too many offered online are sold as "used." If it's not rechargeable, what's the point of a used battery?
Even rechargeable batteries have a finite lifespan so, if shopping for one online, get assurances that it is not used. I still have concerns about "new" batteries like this. If Apple has not made new parts recently, then those from inventory could be almost as old as the one you're replacing.

Execute self Test (Press D at Boot time) without the internal DVD-ROM

It's possible to execute the Apple Hardware test (using the Application's DVD pressing letter D at boot) without the internal DVD-ROM, by using an external USB DVD-ROM unit ?, thanks

Not so — I've done it on my UMBP.
Quoting from the UMBP user guide, pages 57-8:
+To use Apple Hardware Test:+
+1 Disconnect all external devices from your computer except the power adapter.+
+If you have an Ethernet cable connected, disconnect it.+
+2 Restart your computer and hold down the D key as it starts up.+
+3 When the Apple Hardware Test chooser screen appears, select the language for your location.+
+4 Press the Return key or click the right arrow button.+
+5 When the Apple Hardware Test main screen appears (after about 45 seconds), follow the onscreen instructions.+
+6 If Apple Hardware Test detects a problem, it displays an error code. Make a note of the error code before pursuing support options. If Apple Hardware Test doesn’t detect a hardware failure, the problem might be software related.+
+*If this procedure doesn’t work, you can insert the Applications Install DVD to use Apple Hardware Test.* For more information, see the Apple Hardware Test Read Me file on the Applications Install DVD that came with your computer.+
So Apple does acknowledge that this may not always work, but it is certainly possible on my own 2.4GHz UMBP — which is, of course, running Leopard.

CHANGING THE INTERNAL BATTERY

I was looking for a site that offered pictures and step by step instructions for how to change the internal battery. You know the one that keeps the time and date. But if you can help other wise I'm sure it's easy enough but wanted to take a look first without opening it up. Thanks

It won't hurt the iBook to be on all the time. You can do that, or else just reset the time and date when you do turn it on.
There is a capacitor that will keep the time and date for a short while--maybe 30 seconds--enough time to replace the battery in theory. But only a working big battery will keep the date and time all the time. Or being connected to a power source all the time.

How do I check to see if the internal battery is working?

How do I check to see if the internal battery is working?

Turn the nano on, if it doesn't work charge it, if it stil doesn't work the battery is probably shot.

Running without the battery. Bad for the Macbook?

I want to preserve the integrity of my battery, so I am runing my MBP without it in. I just have it plugged into the wall. I'm wondering, is it bad to run it without the battery? Like, are there any huge malfunctions that could happen?
I dont want to constantly run it with the battery, when I have a wall outlet. My brother did that with his powerbook, and ater a year, his battery life sucked.

All batteries lose their ability to recharge to its full factory capacity, Li-ion or not. This is the very nature of rechargeable batteries. Since li-ions don't have a memory footprint, it doesn't matter what you store them at.
You bro read this:
A unique drawback of the Li-ion battery is that its life span is dependent upon aging from time of manufacturing (shelf life) regardless of whether it was charged, and not just on the number of charge/discharge cycles. This drawback is not widely publicized.
At a 100% charge level, a typical Li-ion laptop battery that is full most of the time at 25 degrees Celsius or 77 degrees Fahrenheit, will irreversibly lose approximately 20% capacity per year. However a battery stored inside a poorly ventilated laptop, may be subject to a prolonged exposure to much higher temperatures than 25 °C, which will significantly shorten its life. The capacity loss begins from the time the battery was manufactured, and occurs even when the battery is unused. Different storage temperatures produce different loss results: 6% loss at 0 °C/32 °F, 20% at 25 °C/77 °F, and 35% at 40 °C/104 °F. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees Celsius respectively
The problem is he didn't quite understand it or remember it. Storing the battery at 40% doesn't reduce the 10-20% loss. What the excerpt talks about is temperature of the environment the battery rests in. It is an interaction effect.
If the battery is at 100% charge, and stored at 40 °C/104 °F, then a 35% reduction will occur. If it is stored at 40% capacity, then a 20% reduction will occur. If it is stored at 100% charge at 0 °C/32 °F a 6% reduction will occur, when if the battery is dropped to 40%, only a 4% reduction will occur.
You bro is wrong in thinking you can stop Li-ion batteries from losing their charge. This happens from the point of manufacturing.
Source: http://en.wikipedia.org/wiki/Lithiumionbattery

Hi i have a HP g62-b25sa notebook pc and i keep getting the internal battery 601 error

i cannot take my charger lead out as it will only last about 2 mins do i need to replace the clip on battery or is there an internal battery and my fan has stopped working also and my warrenty has run out i love this laptop but is it worth getting these parts replaced or just save up for a new laptop. thanks for any help you can give me.

tanya86 wrote:
i cannot take my charger lead out as it will only last about 2 mins do i need to replace the clip on battery or is there an internal battery and my fan has stopped working also and my warrenty has run out i love this laptop but is it worth getting these parts replaced or just save up for a new laptop. thanks for any help you can give me.
Hi,
You have to replace the old battery. The part number is: 593554-001 for a 55Wh or 593553-001 for a 47Wh battery. Search the part number on google shopping or ebay for the best price.
Dv6-7000 /Full HD/Core i5-3360M/GF 650M/Corsair 8GB/Intel 7260AC/Samsung Pro 256GB
Testing - HP 15-p000
HP Touchpad provided by HP
Currently on Debian Wheeze
*Please, help other users with the same issue by marking your solved topics as "Accept as Solution"*

6602-Can LabVIEW still run without the board having any input signals(in a simulation mode)??

wheeler

Wheeler,
The 6602 can physically run without any thing wired up, but it will not be "simulation" mode. Basically, you can use the internal timebase as a source or gate. For example if you are doing simple event counting, you can count the edges of the internal timebase. If you are doing pulse width measurement, or period measurement you can measure the internal 100kHz timebase. You will also be able to run the pulse train generation programs with the default setting of the internal timebase as the source.
The real answer to your question is that you do not need inputs wired up, but you do need to measure a signal (internal timebase) to get valid readings. So you can not do true simulation mode, but you can still program and test your program without your
intended input signals.

Already bought quicktime pro but still running without the pro options

Hello.
I have already bought quicktime pro but after I had to reinstall it is running again without the pro options. I logged into apple.com and there is nowhere where I can find my actualisation or key code which I have paid for to make it run as pro.
Does anyone know where to find it or how to fix this problem so it runs as pro again without having to pay for it again?
Thank you for your help,
kind regards
fybs

If you've lost the email Apple sent you containing the Pro key, log into your account in the Apple Store and click on the Downloadable Software Purchases link. You should find the key shown there.
Regards.

Running without the Apache Bridge

Recently we decided to try running our weblogic 10.x servers without the apache bridge layer. We used our load balancer to accomplish across 6 managed servers on 3 physical servers. about the same time we started to have issue with clients trying to login the site that was being powered by Weblogic Portal. Could these be related? Does Apache bridge do more than just proxy the requests? Does it supply some sort of persistence that maybe our load balancer is failing to provide? Maybe another cookie or header value?

Typically for Web Applications - requests should go to Loadbalancer --> Loadbalancer proxies requests to Webservers (Apache) --> which in turns sends requests to backend Weblogic server instances.
However we can even have Loadbalancer to proxy requests to Weblogic App servers by eliminatinf webserver layer.
using Apache Webserver proxy plugin to proxy request to Weblogic App servers is more effective - Apache proxy plugin does loadbalancing of requests to backend Weblogic servers , if you are using cluster setup and session persistance, Apache proxy plugin will be taking care of session failover mechanism (it will replicate session information of failed server to other active running server so that user will not lose this session information).
By using Loadbalancer to proxy requests to Weblogic servers you might be achieving loadbalancing of requests, but it will not support session failover & other features of backend Weblogic cluster.
Hope this helps
- - Weblogic Consultant

Can I use my Powerbook 12" without the internal HD?

Hi everybody!
I have a Hard Drive (160GB, Samsung) in my Powerbook12", that's about to fail. I bought it less than a year ago, so I can get a new one for free, except that I have to pay for, or do, the extraction from the computer. As some time may elapse before they send me the replacement drive that I will install, I wondered if I would be able to temporarily use my Powerbook, booting from an external firewire hard drive, but with no internal hard drive. Thanks for your help!

Thank you for your answer. In fact, I was wondering if the physical absence of the internal HD might be a problem when reassembling the computer to use it, this led me to the idea of installing the old initial internal drive, which I was given back when my present hard drive was installed. Does this make any sense?
Or can I really reassemble my computer leaving the hard drive bracket empty, and make it work?
More generally, are there other options for upgrading a 12" 1.33 GHz Powerbook, apart from increasing the hard drive size and RPM?

TS2634 Can I buy an ac adopter that I can run without the battery dying on me while I am on ac ?

Can I buy an ac adopter for my iPad 3, so that I can run my iPad w/o killing my battery while just using ac ?

Buddyd539 wrote:
Can I buy an ac adopter for my iPad 3, so that I can run my iPad w/o killing my battery while just using ac ?
Use the charger that came with the iPad.

MYSTERY: T410s runs without the battery or the plug

I have a video if anyone needs to see it about this Thinkpad 410s.
I always pull the battery to replace a screen on a laptop.
After replacing the screen I got ready to test it.
I forgot to repace the battery and with the power adapter NOT connected
it booted once before I realized what it was doing.
I then turned my smartphone camcorder on and it booted a second time.
Is there a second battery or is it running on capacitors?
BTW: it had been unplugged 3 days before I changed the screen.
Solved!
Go to Solution.

Hello and welcome,
I believe that model can have an ultrabay battery instead of an optical drive. Should be obvious from the outside.
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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Could this be the internal Battery?

I have an iMac G4 800 15" flat panel that has never been serviced internally. It has been run pretty constant for the last few years. Here is what happened to the best of my observation:
The monitor started to flicker a little while moving the mouse and grew steadily worse. It became a consistent flicker (almost like interference from somewhere). As the flicker became slower and more pronounced the machine shut down.
This happened over the course of about 20 min.
It will not power up. I did observe that when I press the power button the fan in the top of the base will spin for a brief second and then wind back down. Nothing else seems to be getting power.
I removed all the cables and the bottom plate and following the instructions on this site, pressed the PMU (just once). I reassembled the machine plugged it back in and still nothing.
The only other thing I can think of to check that will not make this fantastic machine a doorstop, is the battery. This is a little deeper probe than the PMU, so Id like to get some feedback first.
Has anyone experienced the above symptoms? Does it sound as if I am on the right track?
Thank you!

Hello! I've never seen a battery failure cause something on a machine that was in use. The battery hold the settings when it not connected to the a/c and usually is associated with startup issues. This sounds like an iMac powersupply biting the dust or at least the graphics card going south and will likely require a trip to the Apple repair shop.Tom

My PB turns off without the low battery warning

My 12" PB sometimes goes to sleep because off low battery without showing the battery warning first?
Mac OS X (10.3.8)
PB 12" G4 Mac OS X (10.3.9)

Go into system preferences, then go to power settings and finally fins what applies to you.
hope this helps

Running without the internal battery

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