Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

13 posts


# 15144 6-Aug-2007 21:49
Send private message

I've been hunting around for a laptop car adapter for my new Toshiba Satellite A200 laptop.

Reason why is I have a DC Invertor from Dick Smith's but that seems to make my current AC power adapter run reaaally hot.
So I decided it may be better to use a DC-DC adapter -

My current AC adapter output is 19V @ 4.74A (90W) -
I've found a DC adapter on that will do that.

Is it risky / more likely to damage the laptop running through that car or should it be fine?


Create new topic
4352 posts

Uber Geek

Lifetime subscriber

  # 81373 6-Aug-2007 22:39
Send private message

I assume that you are wanting one of these?


Im not sure on this, but it wouldnt surprise me...

Depending on the invertor you have, you will be producing an AC current, that instead of being a true sine wave, it will square edges, this could be what makes your AC power adapter get realyl hot.
It is getting an AC current it is not use to, so it is having to do a lot of work to, at a guess, convert it into something it can use, and then convert that to DC.

3000 posts

Uber Geek


  # 81377 6-Aug-2007 22:48
Send private message

Second that, Stay away from the 12v - 240v inverters unless you really need to.

Get a 12v - 18v adaptor but get a reliable brand, I now use an "compaq" one for my Toshiba. The Jaycar model blew up but it felt cheap and was a large sized thing.


13 posts


  # 81400 7-Aug-2007 08:01
Send private message

Thanks for that -

I was looking at this model here:

This will run 19V at 4.74A.
It looks like a bit of a cheapo one though - that DSE adapter has a overcurrent protection features which is good -

You guys know of / can recommend where to buy reasonably good quality one?

4352 posts

Uber Geek

Lifetime subscriber

  # 81402 7-Aug-2007 08:17
Send private message

That Jaycar one does not have a very good picture, DSE sell a similar model, if not the same, that is Projecta branded.

They seem to do very well, however I would get the more expensive one and it has higher tollerences and has an USB on it, aswell as it being able to be used on an aeroplane.

1240 posts

Uber Geek


  # 81479 7-Aug-2007 17:37
Send private message

Dse eh rscole?

13 posts


  # 81510 7-Aug-2007 22:14
Send private message

Yeah the Kerio one from DSE I think will be the go.
It's the only one with output current protection built in.

It's a bit of a concern when running in the car - ie someone starts the car when the charger is plugged into the laptop -
I guess that could cause a power / current spike possible damaging the laptop.

Worth spending $150 versus $50 and less risk damaging a $2500 laptop.

Thanks all.

Create new topic

Twitter and LinkedIn »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Arlo unveils its first video doorbell
Posted 21-Oct-2019 08:27

New Zealand students shortlisted for James Dyson Award
Posted 21-Oct-2019 08:18

Norton LifeLock Launches Norton 360
Posted 21-Oct-2019 08:11

Microsoft New Zealand Partner Awards results
Posted 18-Oct-2019 10:18

Logitech introduces new Made for Google keyboard and mouse devices
Posted 16-Oct-2019 13:36

MATTR launches to accelerate decentralised identity
Posted 16-Oct-2019 10:28

Vodafone X-Squad powers up for customers
Posted 16-Oct-2019 08:15

D Link ANZ launches EXO Smart Mesh Wi Fi Routers with McAfee protection
Posted 15-Oct-2019 11:31

Major Japanese retailer partners with smart New Zealand technology IMAGR
Posted 14-Oct-2019 10:29

Ola pioneers one-time passcode feature to fight rideshare fraud
Posted 14-Oct-2019 10:24

Spark Sport new home of NZC matches from 2020
Posted 10-Oct-2019 09:59

Meet Nola, Noel Leeming's new digital employee
Posted 4-Oct-2019 08:07

Registrations for Sprout Accelerator open for 2020 season
Posted 4-Oct-2019 08:02

Teletrac Navman welcomes AI tech leader Jens Meggers as new President
Posted 4-Oct-2019 07:41

Vodafone makes voice of 4G (VoLTE) official
Posted 4-Oct-2019 07:36

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.