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Groups > comp.sys.mac.portables > #1269

Re: Unable to boot up a 15" 2008 MacBook Pro.

Subject Re: Unable to boot up a 15" 2008 MacBook Pro.
Newsgroups comp.sys.mac.portables, comp.sys.mac.system, comp.sys.mac.systems
References (5 earlier) <050420190829494975%nospam@nospam.invalid> <qYydnZ4WX4YxOjrBnZ2dnUU7-cmdnZ2d@giganews.com> <050420191535549194%nospam@nospam.invalid> <TaOpE.846$Df6.572@fx30.fr7> <q88cvf$l71$1@dont-email.me>
From David in Devon <BDonTJ@REMOVE.gmail.com>
Message-ID <kDPpE.1836$0E1.177@fx22.fr7> (permalink)
Organization blocknews - www.blocknews.net
Date 2019-04-05 22:19 +0100

Cross-posted to 3 groups.

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On 05/04/2019 21:14, Panthera Tigris Altaica wrote:
> On 2019-04-05 15:40, David in Devon wrote:
>> On 05/04/2019 20:35, nospam wrote:
>>> In article <qYydnZ4WX4YxOjrBnZ2dnUU7-cmdnZ2d@giganews.com>, Alan Browne
>>> <bitbucket@blackhole.com> wrote:
>>>
>>>>>>
>>>>>> My client didn't want a new battery since he rarely uses it. It's 
>>>>>> very
>>>>>> old and slow. We kept its battery slot empty so it can boot up 
>>>>>> normally.
>>>>>
>>>>> don't do that. without a battery, it will run significantly slower and
>>>>> there is also the risk of a sudden shutdown if there's a power glitch.
>>>>
>>>> Why would it run slower if it's on its main power connector?
>>>
>>> because peak demands can potentially be above what the power adapter
>>> alone can source.
>>
>> Bullshit
> 
> It depends on the charger. Apple made multiple chargers which would work 
> with that model. The lower-end ones simply didn't provide the power 
> necessary to run the CPU at max by themselves, they needed battery power 
> as well. This meant that, yes, when running at full power, the laptops 
> would slowly lose charge even when plugged in. Fortunately this was only 
> for peak CPU usage, which was not usually prolonged, so the battery 
> would start to charge again when the CPU usage went down. Or the user 
> could just get a more powerful charger.
> 
> Note that this still happens with some devices. If I use the standard 
> iPhone charger with my iPhone 6 while I'm running something CPU 
> intensive, such as Civilization 6, the iPhone will lose charge, slowly. 
> If I use a more powerful charger, either a 3rd-party charger such as the 
> Belkin I normally carry in my laptop bag, or the charger for an iPad, 
> this does not happen. The iPad itself has been known to slowly lose 
> charge when plugged into the USB port in my car, a Toyota, if I'm 
> running intensive apps on it.

Thank you for your sensible answer. :-)

I've never owned an Apple laptop so defer to your experience. I have 
used other types of laptop since the 1980's and have never had a problem 
running on a power supply with or without the battery being fitted.

The inverter on my narrowboat isn't a pure sine wave device. I've had no 
problem so far, over a number of years, in charging our iPhones and iPad 
but am just a little concerned that I may have a problem with my brand 
new iPad Pro. Do you have sufficient knowledge to comment on this?

-- 
David B.
Devon, UK

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Thread

Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-02 13:05 -0500
  Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-02 11:12 -0700
    Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-02 13:23 -0500
      Re: Unable to boot up a 15" 2008 MacBook Pro. YK <xxxxx@dialme.com> - 2019-04-02 19:29 -0400
        Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-02 16:31 -0700
      Re: Unable to boot up a 15" 2008 MacBook Pro. ErikRS <mac-dane@is.invalid> - 2019-04-04 21:10 +0200
        Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-04 18:22 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-04 18:36 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-08 09:57 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-04-05 04:04 +0000
            Re: Unable to boot up a 15" 2008 MacBook Pro. Wade Garrett <wade@cooler.net> - 2019-04-08 10:10 -0400
          Re: Unable to boot up a 15" 2008 MacBook Pro. ErikRS <mac-dane@is.invalid> - 2019-04-07 14:47 +0200
        Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-04 22:32 -0500
          Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 08:29 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-05 15:52 +0000
              Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 12:40 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 17:49 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 12:54 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 17:59 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 13:10 -0400
            Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-05 15:08 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 20:29 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 15:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 21:59 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:04 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:31 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:33 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:36 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:55 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:56 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 18:01 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 18:07 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 15:15 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Baker <nunya@ness.biz> - 2019-04-05 14:08 -0700
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:32 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 17:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. danny burstein <dannyb@panix.com> - 2019-04-05 20:04 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 16:26 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:50 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 18:01 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 15:35 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 20:40 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. danny burstein <dannyb@panix.com> - 2019-04-05 20:05 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-05 20:06 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 16:17 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Panthera Tigris Altaica <northentiger@outlook.com> - 2019-04-05 16:14 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:19 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:37 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-05 22:44 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-05 17:50 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 16:55 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 10:40 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 11:29 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 15:13 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Lewis <g.kreme@gmail.com.dontsendmecopies> - 2019-04-06 19:57 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:08 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 15:58 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Jolly Roger <jollyroger@pobox.com> - 2019-04-06 20:04 +0000
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:10 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:13 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 11:58 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-08 10:07 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 16:11 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-08 11:19 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-08 20:23 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. Alan Browne <bitbucket@blackhole.com> - 2019-04-06 17:29 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-07 21:05 -0400
              Re: Unable to boot up a 15" 2008 MacBook Pro. ant@zimage.comANT (Ant) - 2019-04-05 21:55 -0500
                Re: Unable to boot up a 15" 2008 MacBook Pro. David in Devon <BDonTJ@REMOVE.gmail.com> - 2019-04-06 09:52 +0100
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 08:00 -0400
                Re: Unable to boot up a 15" 2008 MacBook Pro. nospam <nospam@nospam.invalid> - 2019-04-06 08:00 -0400

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