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Dell's New Laptop Comes With Wireless Re-Charging
engine




msg:3997887
 5:47 pm on Sep 29, 2009 (gmt 0)

Dell's New Laptop Comes With Wireless Re-Charging [news.cnet.com]
But you probably wouldn't guess that the Latitude Z charges wirelessly. And as far as we can tell, it's the first laptop to do so. Surprised that this is coming from Dell? You're not alone.

The wireless charging is handled elegantly enough. An inductive pad that's built into a laptop stand can accomplish a full recharge in "about the same amount of time" as a standard-issue cabled charger, according to Dell. While smartphone maker Palm has a similar (albeit smaller) wireless charging system for the Pre, and companies like Visteon and Wild Charge have debuted wireless charging accessories for phones, no PC maker has incorporated the idea until now.

You've still got to have the inductive pag wired in, and the laptop does have to be on the pad to recharge. So the pad is wired, but the laptop is not.

 

J_RaD




msg:3999502
 9:40 pm on Oct 1, 2009 (gmt 0)

soooooooo instead of the wire just going into the back of the laptop, it goes into the back of a pad that your laptop sits on top of. hmmmm

so if you are hauling your laptop around you need to remember 3 things
laptop
pad
cord

if you are sitting around on the couch and your battery is running low but you just want to plug it in and keep going... sit the pad on your lap thats plugged in.

some things are just stupid to do wirelessly and this is one of them. sure its cool for a bunch of mobile devices that you can throw on 1 pad and they all charge but this use of the tech seems silly.

bill




msg:4001185
 4:26 am on Oct 5, 2009 (gmt 0)

Sounds like a great idea actually. If they can standardize these pads among manufacturers and then allow a variety of devices to charge wirelessly that could be quite convenient.

J_RaD




msg:4003082
 5:15 pm on Oct 7, 2009 (gmt 0)

HA HA HA .they can't even use a standarized power supply or motherboard!

caribguy




msg:4003118
 6:28 pm on Oct 7, 2009 (gmt 0)

The announcement prompted me to dig a bit deeper... There is a good demo video on TED that shows the potential of wireless energy transfer.

Kudos to Dell (did I really just write that?) for adding this feature to their new model.

Think big: did anyone patent parking lot recharge pads for electric vehicles yet? ;)

kaled




msg:4003134
 6:43 pm on Oct 7, 2009 (gmt 0)

As a demonstration of technology, it is interesting, however, as a practical feature, it is a non-starter.

If is could suck energy from a wall-mounted coil up to twenty feet away with an efficiency of more than 90%, it might be useful but nothing less capable than that is likely to be adopted for laptops.

If Dell want to introduce something new and useful, how about pushing an industry-standard power supply (that uses an IBM connector because the Dell ones are useless).

Kaled.

Jonesy




msg:4004386
 5:25 pm on Oct 9, 2009 (gmt 0)

Well, if there was a standard, it would be Really Nifty to build this into aircraft tray tables....

kaled




msg:4004725
 10:53 am on Oct 10, 2009 (gmt 0)

More generally, a standard DC supply voltage needs to be agreed (not just for laptops but all DC devices). With a standard connector, many things become easier.

One thing that puzzles me is why laptops tend to use 18V or thereabouts for power supplies - you would think 10V to 15V would be more sensible since they could then be plugged directly into a car's electrical system (provided adequate filtering was used).

Kaled.

Leosghost




msg:4004780
 3:04 pm on Oct 10, 2009 (gmt 0)

My old toshiba portege 7010c ( that I use for listening to radio 4 via iplayer and email )runs on 15v DC at 3 amps ..I just checked the power brick ..

smallcompany




msg:4005248
 7:25 pm on Oct 11, 2009 (gmt 0)

I wonder how would "laptop-toothbrush" crossover look? Can we charge Oral-B on it?

Leosghost




msg:4005328
 10:43 pm on Oct 11, 2009 (gmt 0)

:)))))

kaled




msg:4005480
 9:27 am on Oct 12, 2009 (gmt 0)

I just checked three supplies I have to hand...
Toshiba : 15V
IBM : 16V
Dell : 19.5V

There's no reason why these should be different, they just are. All that's needed is a standard voltage and maybe three different ratings (for netbooks, laptops and desktop-replacements, maybe 50W, 75W and 100W) with a connector designed so that a 100W supply can be used on a 50W laptop but not vice-versa.

Kaled.

J_RaD




msg:4005825
 8:56 pm on Oct 12, 2009 (gmt 0)

but they they can't make 150 bux everytime you lose your cord and PS.

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