Re: Using a lower-current adaptor with my laptop

From: eug k (wired_au_at_change-this-to-ho.tmail.com)
Date: 06/07/04 

Date: 7 Jun 2004 17:37:01 GMT

Quaoar <quaoar@tenthplanet.net> wrote:
> eug k wrote:
>> hi,

[...]

>> Apart from the coax power plug which may be different, is
>> there anything i'm missing out?
>>
>> it's a thinkpad 240x, the adaptor's for another thinkpad.
>
> The average power requirement is, with certainty, less than the peak
> power requirement. For example, if you are doing something as simple as
> defragmenting the HD, the power required during the defrag can be
> several multiples of the average power. Burning CDs is another heavy
> power consuming process. Only you can determine what the peak power
> requirement might be. Operating with an AC adapter that is rated too
> close to the average power requirment leaves little surplus for
> supplying the peak power. If the AC adapter is operated in excess of
> its capacity, the voltage drops and all manner of potential problems can
> be proposed: HD write failure, memory read/write failures, CPU
> auto-shutdown, overheating from reduced fan speed, adapter overheat/auto
> shutdown, etc. OTOH, depending on your computing habits, none of the
> above might apply.

What I was hoping is, during those peak power periods, is that
the battery would kick in. I assume if i can pull the plug
out while the laptop is running without affecting anything, that
the battery is connected car-style - always inline, with the
charger behaving like an alternator.

Being a small laptop, it doesn't have a burner or even a
cdrom drive. 

--

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