You need to check to see how many watts your computer runs.  Mine is
over 100, so I use a 300 watt inverter (one that large is probably not
necessary) and it works very well when my wife is driving.  Assuming we
are on the Interstate, I can get online and stay online pretty
well...unless there are mountains or tunnels.

I really think that 75 watts is too small for your computer.  By the
way, I got my inverter at Walmart in the auto parts dept..

John

Way too small for a laptop.
Get an inverter that has a cooling fan built in.
Skip Radio Shack and get one from an auto supply chain.
For Example, you can get a 400 watt inverter for $24.99 at Advance Auto
Parts.
http://www.partsamerica.com/productdetail.aspx?mfrcode=CPM&mfrpartnumber=PMP400
Hope the info helps.
You are going to love Streets and Trips with the gps.
Jeff

"Dwain G." wrote...

Harbor Freight has a 700 watt inverter on their coupon sale list this
week...

http://www.harborfreightusa.com/usa/emails/display.do?fname=34_retailB.html

Get the biggest one you can afford.

You will use the dickens out of it.

Cell phone chargers, drills, small TVs, etc etc etc.

MD

dwain look on ebay     this might be a good link do not now your
type of toshida laptop
http://computers.search.ebay.com/toshiba-notebook_Desktop-Laptop-Accessories_W0Q
QcatrefZC12QQfromZR10QQfsooZ1QQfsopZ1QQftrtZ1QQftrvZ1QQsacatZ31530
   ebay has a lot of good junk  jack  shavish

I bought a Belkin 300 Watt Max  140 Constant, paid $39.95 for it. Has a fan
for cooling, an auto type fuse in the back etc.

There are a ton of laptobs that do not have air/car adapters. Worse yet, is
most airlines have stopped providing power outlets for laptops.

BG

What are the specs of the AC power supply that came with your laptop?
surely there is a better way than using an inverter; they're
inefficient, take up space and create lots of heat.  for instance my
laptop's power supply says that it provides 6.3A at 19V.  I would think
it would be easier to try to find a generic power supply that provides
the correct voltage and amperage; ASSuming that you're going to keep
this particular laptop a while.

This looks interesting, but of course it's outside the US...

http://www.digidave.co.uk/product_info.php?cPath=32&products_id=294&osCsid=b5036
6a9473535781634c33a3e219373

(also probably won't run my own laptop, as it's a power hungry P4 - I
don't know how much power my laptop actually draws, but (19)(6.3) =
over 100W)

just seems easier to use something purpose built for a job rather than
using an inverter to power another transformer and rectifier, with each
having its own built in inefficiencies...

nate