Results 1 to 9 of 9

Thread: AC-DC inverters for cars?

  1. #1
    Member
    Join Date
    Jul 2002
    Location
    Woodlands
    Posts
    1,376

    Default AC-DC inverters for cars?

    Do any of you guys use it? Those that you plug into the cigarette lighter. Any recommended models to go for? Want to plug in my laptop on long drives up to Malaysia.

  2. #2
    Member agws1970's Avatar
    Join Date
    Sep 2002
    Location
    North East Singapore
    Posts
    365

    Default Re: AC-DC inverters for cars?

    I actually sell this item in my real life job. Will work as long as you only plug in one item and not be greedy and try to do too much. 400 watts enough for laptop brick. Also will power your mobile charging if you have USB cable.

  3. #3
    Senior Member zac08's Avatar
    Join Date
    Feb 2005
    Location
    East
    Posts
    11,755

    Default Re: AC-DC inverters for cars?

    I'm using the Belkin one. Available from certain Home-fix outlets.

    Pretty reliable.

    it's the one on the left

    Last edited by zac08; 3rd March 2011 at 07:20 PM.
    Michael Lim
    My Flickr Site

  4. #4
    Member
    Join Date
    Jul 2002
    Location
    Woodlands
    Posts
    1,376

    Default Re: AC-DC inverters for cars?

    Thanks for the info! Does the cigarette port have enough power for both the laptop and a GPS unit? My plan is to get those extension units like zac08's and plug in both the converter (with laptop) and the GPS.

    I've read that the port can only do 120W max, isn't 400W too much for it?

  5. #5
    Member agws1970's Avatar
    Join Date
    Sep 2002
    Location
    North East Singapore
    Posts
    365

    Default Re: AC-DC inverters for cars?

    Quote Originally Posted by Evilmerlin View Post
    Thanks for the info! Does the cigarette port have enough power for both the laptop and a GPS unit? My plan is to get those extension units like zac08's and plug in both the converter (with laptop) and the GPS.

    I've read that the port can only do 120W max, isn't 400W too much for it?
    Sorry, Sleeping when I posted last. Should be 140 watts. 400 watts is only for units that hook up direst to batt terminals. As for the enough power for 2 items, flip over the power bricks and do some maths.
    Last edited by agws1970; 4th March 2011 at 01:13 PM.

  6. #6

    Default Re: AC-DC inverters for cars?

    If all you want to do is run a laptop , you will be better off getting a 'auto-air' laptop power supply - then you only have one conversion happing instead of two.

    When I travel I take the 'Auto-Air' power supply for my dell - it takes AC power AND DC from car (and aircraft) power sockets.

    I guess if you are driving you don't care about power effciency, just a few more watts of power sucked out of your petrol engine - but it you have reason to run with the engine off and just using the battery, every bit of extra effciency helps.

    I work with guys who do need to run laptops for long periods with the engines off - and our work cars are fitted with larger batteries, alternators and hard-wired 1kw inverters....

    And the 1kw inverter near melted it's leads when first installed. The thing is now connected to the batteries with what is effectively electric welder cable.

  7. #7
    Member
    Join Date
    Jul 2002
    Location
    Woodlands
    Posts
    1,376

    Default Re: AC-DC inverters for cars?

    If I reading this right, these auto/air power supplies will replace the power brick that comes with the laptop correct?

  8. #8

    Default Re: AC-DC inverters for cars?

    Quote Originally Posted by Evilmerlin View Post
    If I reading this right, these auto/air power supplies will replace the power brick that comes with the laptop correct?
    Yep - I have a 12-24v DC, 100-250v AC 50/60Hz power brick. An all in one jobbie.

    However I notice on our last order, Dell have started shipping a smaller DC only 'auto-air' power supply that's about 1/4 the size of the mains power brick, but no longer takes mains as well, so you need to carry 2 devices. A backwards step if you ask me.

    Kensington and APC sell 'generic' AC/DC laptop power supplies.

  9. #9
    Member
    Join Date
    Jul 2002
    Location
    Woodlands
    Posts
    1,376

    Default Re: AC-DC inverters for cars?

    Yup, a quick google search showed me those two brands. Now to hunt them down in Singapore. I'm using an Asus laptop so I'll have to get one of those as Asus doesn't do travel adaptors.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •