Charging laptop from car DC converter

Archived from groups: comp.sys.laptops (More info?)

Try www.laptopspares.com they are very helpful and if you quote my
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on sales@laptopspares.com or go to their site and call them.

portoy40@yahoo.com (Jack Torrance) wrote in message news:<e1617ba.0404200731.6fe6cfb6@posting.google.com>...
> Hi there,
>
> I don't have much knowledge on electronics and I'd really appreciate
> your advice on this. I came across one of those Car DC converters that
> outputs 800mA at voltages in multiples of 1.5V up to 12V (to be used
> for CD players, portable TVs, etc) recently. I am hoping to use it to
> charge my laptop battery on long drives, but unfortunately my laptop
> power supply is rates at 19.5V and 3A.
>
> Now presumably this means that I can't take out my battery and expect
> the laptop to work on the output from the DC converter, but does it
> mean that I won't be able to charge the battery from the 12V output?
> If I plug the output in to my laptop (laptop off), will it damage my
> battery, or will it in fact charge it?
>
> Thanks in advance.