how to connect notebook on a 12V DC
 

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

You can purchase an Auto Power Adapter/Charger from Compaq
(#401043-B25) which is supposed to be an option for the
E500. Or, you can purchase a generic adapter. These adapters
will charge the internal battery as well as operate the
computer from your 12 supply.

Good luck!

Chuck

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

On Mon, 25 Apr 2005 19:40:43 GMT, 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

===========================================

Your cheapest solution is to get a low power/low cost inverter. I
don't know where you are located, but here in the US, West Marine,
Walmart and Costco all have inverters in the 150 to 200 watt range for
less than $35 USD. They will run your laptop just fine as well as
other low power electrical gear.

On Mon, 25 Apr 2005 19:40:43 GMT, 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

I use a small 12VDC-120VAC inverter, and the normal laptop AC supply.
This may be slightly less efficient than a "proper" 12 volt supply for
the notebook, but it is cheap and simple, and I generally have the
engine running while using the computer, so the loss in efficiency is
not significant.



--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
new newsgroup users info : http://vancouver-webpages.com/nnq
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca

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?

Look for a auto/airline DC adapter. It takes the nominal 12V battery
voltage and provides a stabilized 18V output. Adapters were made by
COMPAQ and there are also after market adapters on the market.

Check eBay, there are about 20 Armada DC adapters for sale there right
now http://tinyurl.com/72ftb

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)

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

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

I've built my own comverter, but this was easyer.

My batteries are said to be 12V, in real-life this is somewhere in the
13's
My laptop uses 15V, 4A, but the laptop-battaries are 10.8V
so, the input of the laptop should be somewhere between 15 and 10.8 V.

a direct link from the boat-batteries could be made, and for security I
added a fuse, diode (such a thing to let te power flow in one
direction), and a thing to catch any peak voltages (we call it a
"condensator")

this works well now for 2 years, third coming up. (laptop-batteries
should be removed, couse they are slowly getting empty)
the laptops it works with for me are a Toshiba 1800-100, toshiba
2140CDT and a real old IBM XXX. the IBM asked 18 volts too :p

You can get a simple adapter on e/Bay
or get an inverter


On 26 May 2005 02:35:03 -0700, "Arnold"
wrote:

I've built my own comverter, but this was easyer.

My batteries are said to be 12V, in real-life this is somewhere in the
13's
My laptop uses 15V, 4A, but the laptop-battaries are 10.8V
so, the input of the laptop should be somewhere between 15 and 10.8 V.

a direct link from the boat-batteries could be made, and for security I
added a fuse, diode (such a thing to let te power flow in one
direction), and a thing to catch any peak voltages (we call it a
"condensator")

this works well now for 2 years, third coming up. (laptop-batteries
should be removed, couse they are slowly getting empty)
the laptops it works with for me are a Toshiba 1800-100, toshiba
2140CDT and a real old IBM XXX. the IBM asked 18 volts too :p

Reuben Rothstein wrote:
You can get a simple adapter on e/Bay
or get an inverter


On 26 May 2005 02:35:03 -0700, "Arnold"
wrote:


I've built my own comverter, but this was easyer.

My batteries are said to be 12V, in real-life this is somewhere in the
13's
My laptop uses 15V, 4A, but the laptop-battaries are 10.8V
so, the input of the laptop should be somewhere between 15 and 10.8 V.

a direct link from the boat-batteries could be made, and for security I
added a fuse, diode (such a thing to let te power flow in one
direction), and a thing to catch any peak voltages (we call it a
"condensator")

this works well now for 2 years, third coming up. (laptop-batteries
should be removed, couse they are slowly getting empty)
the laptops it works with for me are a Toshiba 1800-100, toshiba
2140CDT and a real old IBM XXX. the IBM asked 18 volts too :p


You might consider the risk of voltage drops when cranking the engine if
you have removed your laptop batteries, which otherwise can protect you
against that. This device handles such problems nicely, at a price of
course....
http://www.carnetix.com/CNXP1900.htm