[ltp] self-made external battery for laptops project

[chuck hawks]

I agree, the 12 volt in the car is flacky. I purchaed a PSU for the car
(Switching Power Supply then regulated for my 760) got it off eBay for less
then $50.00US. Laptop and data worth more then that. My $0.02

Chuck


----- Original Message -----
From: "Richard" <rn214@hermes.cam.ac.uk>
To: <linux-thinkpad@www.bm-soft.com>
Sent: Friday, April 19, 2002 8:19 AM
Subject: Re: [ltp] self-made external battery for laptops project


> Just in case anyone is thinking of making a DIY adapter from the car
> cigarette-lighter socket, it might be worth mentioning that, when the
> engine is running, its '12V' supply isn't.
>
> It may be as high as 17V (with the alternator charing the car battery). It
> can also have lots of nasty spikes!
>
> Really this is just advice to think twice before you plug your laptop
> into your car with an own-design psu, and the engine on. It's probably OK
> in most cases, though.
>
> Richard
>
>
>
>
>
>
>
> On Fri, 19 Apr 2002, peter nol wrote:
>
> > Thanks Bart
> >
> > .
> > Well at least that means that the UPPER voltage is flexible :)
> > the markings on the original ac adapter say
> >
> > 16V 3.36A
> > Your experience tells us that the requirements for the upper voltage are
> > flexible.
> > Now to find out if anyone has tried lower voltage and i'm ready to go.
> > They got 12v batteries starting with as low as 15 dollars :)And then of
> > course there's the car battery. i'll bet that one will last at least 20
> > hours. A tad heavy to carry around in your backpack though.
> >
> > ----- The Linux ThinkPad mailing list -----
> > The linux-thinkpad mailing list home page is at:
> > http://www.bm-soft.com/~bm/tp_mailing.html
> >
>
>
> ----- The Linux ThinkPad mailing list -----
> The linux-thinkpad mailing list home page is at:
> http://www.bm-soft.com/~bm/tp_mailing.html
>

----- The Linux ThinkPad mailing list -----
The linux-thinkpad mailing list home page is at:
http://www.bm-soft.com/~bm/tp_mailing.html