You need an adaptor as per your laptop specifications
Try the net / e/Bay





On Tue, 26 Apr 2005 14:55:05 +0200, Kees Verruijt
wrote:

Geert Maene wrote:
I want to connect a Compaq ARMADA E500 to a 12V batteries. The adapter
from the notebook gives my a 18,5V/2,7Amp.
Do I need a special converter? (where can I buy one)
Does anyone knows a wiring Diagram?

Geert Maene

Hi Geert,

In Belgium you should be able to get a Targus or Kensington generic auto
adapter for your laptop at most bigger computer shops.

I know that Office Centre has them in the Netherlands, and they have 3
outlets in Belgium: http://www.officecentre.be/

Also check the nl.sport.varen newsgroup, someone asked the same thing
there this week (search for "voeding laptop").

-- Kees