I use a 45 watt power supply instead of a 75 watt power supply for my laptop

Posted by Kim Webb on February 21, 2007, 5:31 pm

Please log in for more thread options

I have a toshiba laptop that came with a 75 watt power supply 15
volts / 5 A. When traveling I have been using an older smaller power
supply I had from another toshiba laptop 45 watts 15 volts 3A.

It works fine - is there any reason I should stop using it?

Thanks.

Posted by olfart on February 21, 2007, 5:38 pm

Please log in for more thread options

show/hide quoted text

probably be OK until the damn thing explodes

Posted by Barry Watzman on February 21, 2007, 6:05 pm

Please log in for more thread options

No, not if it's working ok.

Kim Webb wrote:
show/hide quoted text

Posted by iws on February 21, 2007, 8:22 pm

Please log in for more thread options

show/hide quoted text
Since the original PS was rated for an additional 2 A current, it's possible
that under the worst case scenario (discharged battery, running HD and CPU
intensive software that keeps the cooling fan running), your laptop could
tax the ability of the PS to keep up. It could damage the PS or possibly
cause computer instability. To avoid that problem, if your battery is nearly
discharged, I'd charge it while the laptop is off.

Posted by =?iso-8859-1?Q?Roland_M=F6sl?= on February 22, 2007, 1:59 am

Please log in for more thread options

show/hide quoted text

It's only a problem at 100% CPU and charging the internal battery at the
same time.

When the internal battery is full, it should be no problem

--
Roland Mösl
http://politik.pege.org Steuerreform pro Mensch
http://notebook.pege.org mobile Computing
http://auto.pege.org Auto und Verkehr
http://wohnen.pege.org Bauen und Wohnen