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September 28, 2009 9:01 PM PDT

Dell brings wireless recharging to laptops

by Erica Ogg
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Dell Latitude Z

The Latitude Z on wireless charging station, and wireless dock adapter on the right.

(Credit: Erica Ogg/CNET)

That Dell is releasing a new laptop for business customers is the opposite of surprising. But the fact that it contains notable features not seen in any other laptops certainly is.

Most everything about the new Latitude Z is expected: It's yet another very thin notebook (a metric which PC manufacturers keep using to try to one-up each other), with a different kind of exterior finish (soft-touch, in this case), and comes in a black cherry. It measures 16 inches across, and is 14 millimeters thin at its most narrow point.

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.

Dell wireless charging

The wireless charging stand.

(Credit: Erica Ogg/CNET)

It's part of what Dell is terming its new "wireless eco-system." Besides being able to get juice without wires, the Latitude Z will also be able to dock without them. A smaller separate adapter can hook up the laptop with any accompanying monitor, whether it be one in a cubicle, or in a conference room.

Both cost extra, and are by no means cheap ($199 for each), but the intention is for companies to buy, not necessarily individual consumers.

Other cool things Dell is introducing: touch-sensitive controls on the screen's bezel, and its first take on "instant on."

The sliding touch controls--not visible to the naked eye--are located on the right side of the bezel and appear when contact is made. Any controls can be customized and placed there, such as screen brightness, volume, or easy access to specific applications. When controlling an application like Excel or a Web browser, the right side of the bezel can be used as a sort of touchpad for scrolling through a spreadsheet or Web page.

The instant-on capability works exactly the way it sounds. Instead of waiting for Windows to boot up, the computer uses a second smaller motherboard and a separate ARM processor. Through a separate, non-Windows interface, it allows e-mail, contacts, calendars, and a Firefox-based Web browser to be accessed right away. E-mail, contacts, and calendars are always running in the background and are constantly being synced.

The ARM processor doesn't have access to the main motherboard or the ports, which should alleviate security concerns, according to Todd Forsythe, vice president of Dell's commercial client product group. The secondary processor--used mostly in smartphones--also draws much less power than a more robust desktop or notebook processor and so while it's running in the background it doesn't drain the battery as fast: using just the instant-on mode will provide up to two days of battery life; when using Windows and the accompanying Intel Core 2 Duo processor, it will get four hours.

Companies like DeviceVM and Phoenix have built businesses out of instant-on capabilities--basically a quick-booting interface built right into the computer's BIOS that isn't dependent on Windows. Dell said it decided not to go with either of those because they wanted to use the separate low-power processor for the background syncing.

What Dell, and DeviceVM, and Phoenix, and plenty of others are doing is part of a trend that's gaining steam: doing a sort of end-run around Windows. HP came out with its own interface on Touchsmart PCs last year that allows for quick sorting between photos, e-mail, and Web browsing on a few models. Lenovo recently introduced a new touch-screen interface for its tablet, and Asus has its own for its popular Eee PC Netbooks and touch-screen desktop called TouchGate.

Most people aren't used to seeing Dell trying new things like this, some of it actually ahead of competitors. Last year, we wrote about how Dell was starting to be a little more risky about the types of products it was trying out. Not new to the market, just new to Dell, which has traditionally had a habit of waiting, analyzing the market's response to new products, and jumping in later with a more efficient, and less expensive way of making that product.

But that way of doing things is over for Dell now. The company has struggled to find the right mix of products and now has less opportunity to be picky. But it's a good sign that the company is trying out smaller, more innovative, and more practical ideas like wireless charging, docking, instant on, and touch interfaces. Though it's only in the Latitude Z right now, we hear these features are stirring a lot of interest in other product groups at Dell. It's easy to see how, for a cheaper price (the Z starts at $1,999), these new features could find much broader acceptance with retail customers.

Originally posted at Circuit Breaker
Erica Ogg is a CNET News reporter who covers Apple, HP, Dell, and other PC makers, as well as the consumer electronics industry. She's also one of the hosts of CNET News' Daily Podcast. In her non-work life, she's a history geek, a loyal Dodgers fan, and a mac-and-cheese connoisseur. E-mail Erica.
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Add a Comment (Log in or register) Showing 1 of 2 pages (71 Comments)
by Police_States_of_America September 28, 2009 9:21 PM PDT
doesnt seem much different than any other laptop docking station, am i missing something?
Reply to this comment
by Vegaman_Dan September 29, 2009 9:40 AM PDT
Yes, it isn't physically connected to anything. The 'dock' on the right of the picture appears to be a fairly common USB port replicator.
by Seaspray0 September 29, 2009 9:48 AM PDT
An induction coil is built into the base. A second coil is built into the laptop. By applying power to the induction coil in the base, it generates a magnetic field that excites a current in the one built into the laptop. That current is used to charge the laptop. To make it work, you need to place the two coils as close as possible, meaning you need to put the laptop on the base (not walk around the room with it). It's called wireless because there are no wires connecting the laptop to the base, even though you will need to put the laptop on the base to charge it. It isn't as efficient as a direct wired connection, it will cost more, and the alternating magnetic field will generate electromagnetic interference which could affect other devices if they were placed on the charging base. The advantage is it will save you a few seconds time attaching a wired connector to your laptop. I would expect the laptop to have the ability to charge by both methods since the base isn't exactly something that fits into a laptop travel case.

Other than that, it looks very much like any other docking station.
by fleurya September 29, 2009 9:49 AM PDT
It's not connected to anything, but you do have to put it on the stand, which is really no different than putting it on a dock. And I'm guessing this wireless charging option is at the least much more expensive and probably comes with other issues like possbily slower charging, energy loss, etc. Honestly, looks like an answer to a problem that never existed. Now, if it could just charge by being somewhere in my office, like my laptop bag, in some Telsa-like ideal method of energy transfer, then you would have something.
by slickuser September 28, 2009 9:24 PM PDT
lame!
Reply to this comment
by jakemochas September 29, 2009 5:45 PM PDT
why so much hate towards dell? My inspiron 1520 that i've had for two YEARS has been my best laptop... I have a macbook, but for me the upgradability of it is amazing! The design is good... if apple came out with this people would be waiting in line for it...
by sythara September 28, 2009 9:35 PM PDT
So whats the range between this 'thingie you put laptop on' and the charger you plug into the outlet? If its about a foot or so then its not very useful. If its 20 feet then its pretty good.
Reply to this comment
by jaguar717 September 29, 2009 2:12 AM PDT
Definitely not 20 feet. Power drops off as the cube of distance, so the idea isn't so much that you're "beaming" power across the room, more that you're sitting it on a pad that induces a current in the unit's internal circuitry.

Like a Sonicare, or a Pre, or hopefully a ton more household devices. It's great to see this combined with the "instant on" and touch controls. If they can bring the price for this tech combo down quickly, it could be very disruptive...
by Seaspray0 September 29, 2009 10:02 AM PDT
The range will be poor. Just as electricity is subject to resistance, so are magnetic fields. Air is considered a resistance to magnetic fields and ferrous metals act like conductors to magnetic fields. Electric motor designs typically have the airgap between the rotor and stator within a few millimeters (a few hairs wide). That should give you an indicator to how important this airgap is. I would expect the range to be much less than a foot on this charger.

If you wish to see something that actually uses an induction charger, go look at the sonic care tooth brush. Mine only charges when you place the toothbrush back into the cradle.
by solitare_pax October 1, 2009 4:48 AM PDT
I don't think that stand is going to fly - on an airplane that is.

And what happens when the contacts on the bottom of the laptop get worn or dirty?
by jaguar717 October 1, 2009 1:48 PM PDT
There are no contacts. It's INDUCTION. Did you read the article? It works just like a Sonicare or Palm Pre.
by solitare_pax October 2, 2009 4:33 AM PDT
I understand the induction concept - but perhaps I was oversimplifying - what happens when the groovy flat-plane induction surfaces get damaged, worn or misaligned? Since it is far larger than a conventional plug, and has more play in the flexibility of the laptop case, the odds of damage seem far greater.

And for that matter, what are the odds of someone getting cancer from such a large induction area? (hey, someone will bring it up))
by jaguar717 October 2, 2009 5:30 PM PDT
The surface isn't what allows the induction, it just gives you a nice place to park your laptop. The induction occurs when you bring two coils near each other--passing current through one induces a current in the other.

So I suppose if you wore completely through the surface and shorted the induction loop you'd have a problem. And that's the same problem you'd have if you just wore through the base of your laptop and shorted random circuitry under its surface.

As far as cancer, that's about as likely as getting cancer from your stereo speakers. I know the Luddites can't help but jump on any invisible phenomenon (because they're all the same and therefore scary!), but we're talking about a magnetic field. There's no ionizing radiation involved.
by roryk27 September 28, 2009 9:39 PM PDT
I'm waiting for Apple to "invent" this before I believe it's real.
Reply to this comment
by Random_Walk September 29, 2009 6:38 AM PDT
Why?

* MagSafe works just fine.
* Apples don't have docking stations
* The charge rate can't be very fast if you're doing it wirelessly.
* I wouldn't want the power bill jack-up.
* what if I wanted to type on the thing while it was charging? Do I have to type with my arms lifted that far up?
by Vegaman_Dan September 29, 2009 9:46 AM PDT
Apple doesn't build enterprise / business class laptops. You won't find a dock for a Mac. Just won't happen. They are a consumer brand.

@Random_Walk:

The article states the charge rate is about the same as a normal plugged in method.

The power bill jacked up? Okay... then don't ever charge your laptop. I don't see how this applies. How would the power bill be jacked up? I would suspect the charging station would be in standby mode until the inductive coil detects there is a device present. That's exceedingly simple first year electrnoics design. Hell, I did that in sixth grade. It's not terribly difficult.

The platform you see is avariation of another of Dells most popular docks. It elevates the laptop to put the screen at the same height as your desktop monitor so that you can have both in use without shifting up or down in your gaze. You would use an external keybaord/mouse plugged into the replicator next to it there in the picture. Targus, Belkin, HP, Toshiba, etc, all have variations of this laptop stand. You don't type on it- that would be silly for the reasons you gave.
by mbenedict September 29, 2009 10:09 AM PDT
Muahaha, poor Apple fanboys, they're so confused!

@Penguinisto: the article clearly states that the wireless system charges at "about the same amount of time" as cabled adapters. Try reading the article again.

The wireless dock integrates with a full-size monitor AND a regular keyboard on your desk, plus whatever other peripherals you want. If you want to type, that's what the regular keyboard is for... duh! It's why the dock is raised... you know, so a regular keyboard can slide underneath?

The electric efficiency of an induction system is about the same as using a small 65w power adapter vs a standard 85w adapter (~30% difference). Even assuming a big adapter (125w) with the laptop is plugged in and drawing full power for 24 hours a day for an entire month, we're talking maybe 20 kWh more usage depending on where you live.

That's about $2.40 a month, and who leaves their laptop drawing full power for the whole month? Penguinisto must be pretty broke if that margin makes an appreciable difference in his monthly expenditures. Friendly advice: stop buying overpriced Apple products.
by Random_Walk September 29, 2009 12:31 PM PDT
Now that's cute!

Lookit kids, I understand your burning need to take one small point, blow it way out of proportion, and try to claim some sort of victory with it whilst ignoring everything else, but seriously? Get a grip.

PS: Dell has a "normal" and a "rapid" charge setting on their ordinary laptops these days (the setting's in the BIOS if you don't know where to look). I made no comparisons between two specific states, but I usually leave mine on rapid charge. But please continue to dance around a light set of subjective points and pretend they're world-shattering, eh? ;)
by Vegaman_Dan September 29, 2009 4:12 PM PDT
@Random_Walk:

Chill out. You brought up concerns and they were addressed. Don't be upset or chastise others just because the answers aren't what you wanted them to be.

I addressed all your points. Take that as you will.
by solitare_pax October 1, 2009 4:46 AM PDT
If it makes you feel any better, Apple did make a laptop called a DuoDock back in the early 1990's that functioned with a similar idea - the laptop would be slid into a base station like the old Nintendo game cartridges so all the ports were plugged into a base unit that held extra hard drives, the cabling to a keyboard, monitor, etc - so basically you could take your desktop with you on the road. There were monitor controls in the side panels. It was frightfully expensive of course, and primitive by today's standards.

But then, this PC laptop is frightfully expensive too. Maybe that's because it doesn't use Windows to power on instantly.

Funny, isn't that?
by pptech September 28, 2009 9:45 PM PDT
Why would you mention 14mm at its SMALLEST POINT.Pretty silly why don't you just call it what it is and measure at its BIGGEST POINT?Or do we need to read the FINE PRINT?????????
Reply to this comment
by Vegaman_Dan September 29, 2009 9:47 AM PDT
That's the way that Apple and pretty much all other OEM's measure 'thin' these days.
by Bakkster September 29, 2009 2:37 PM PDT
@Vegaman_Dan
Shouldn't a well-written press review call a company out on BS like this, or at least forward only the information important to the consumer?
by Vegaman_Dan September 29, 2009 4:13 PM PDT
WIthout the actual product being avaialble for review, the press can only go with what they are told. Wait for the actual product reviews to come in and that's where I expect the true measurements will be addressed.
by Nicholas Buenk September 28, 2009 10:09 PM PDT
Who cares about inductive or wireless charging. Sounds like a great way to reduce energy efficency, which is a bad thing. And is placing a laptop on some fancy stand really any easier than plugging in a cable? It'd probably actually worse, you have to always use the laptop on this inductive surface if you want to use it on charge, so forcing you to use the battery more. Unless it truly is wireless charging with a good range. But if it's like the Pre doesn't sound like it.
Also instant on? Jeeze that problem was solved ages ago, with you know, sleep mode! Creating a whole ARM computer just for this feature? Ridiclious.
Reply to this comment
by Vegaman_Dan September 29, 2009 9:50 AM PDT
Damage to system boards with the DC IN jack built into the board itself frequently comes from the power cord being yanked or bumped hard by careless users. Apple's Magsafe is excellent, but they won't license the technology so that leaves your options limited. This seems like a decent solution.

The laptop may still have a normal power DC IN jack. That isn't made clear on the article and would be an easy thing to add to the design.

I do agree on the Instant On feature. That's pretty much just a gimmick. It's been tried before and you end up with a crippled system that you can't do much with.
by rwm72 September 28, 2009 10:24 PM PDT
Excuse my ignorance... but if instant on is being used in a number of laptops already... and it alleviated the need to use Windows... are these instant on OS all based on Linux?
The article mentions "HP came out with its own interface on Touchsmart PCs last year that allows for quick sorting between photos, e-mail, and Web browsing". Does that interface use Linux as a starting point ... or I am just getting confused...
Reply to this comment
by JoeF2 September 29, 2009 5:59 PM PDT
Yes, these are usually based on an embedded Linux kernel or other embedded OS.
Phoenix uses Linux in their Hyperspace Instant-On technology:
http://www.hyperspace.com/front-page
by tektaktyks September 28, 2009 10:38 PM PDT
my thoughts exactly,lol
Reply to this comment
by dracoaffectus September 28, 2009 11:49 PM PDT
That will be my next laptop! can't wait!

I've been wanting wireless charging for a long time, and with wireless docking and instant-on capabilities to boot, this laptop beats the pants off everything else.
Reply to this comment
by NikEst September 29, 2009 6:41 AM PDT
Price included!
by TechSlap September 29, 2009 9:28 AM PDT
I wish they made a better name than "wireless charging." Yes, it is charging wireless, but it's not like you can sit anywhere in your house and get a charge without having the plate to set it on. What comes to many people's minds is charging through the air... Which for now, is impossible. Sending voltage and a current through the air seems pretty dangerous.
by Seaspray0 September 29, 2009 9:35 AM PDT
Don't get too excited. Most induction chargers require contact or near contact with the charging base.
by Tech_Amateur September 29, 2009 12:44 AM PDT
Well.. this one looks pretty much like a docking station to me. My initial reaction was wow, but it just kinda came down... I was expecting something like what Eric Giler presented on TED. link here :
http://www.ted.com/talks/eric_giler_demos_wireless_electricity.html
Reply to this comment
by Y_Less September 29, 2009 1:43 AM PDT
"and its first take on "instant on." "

I beg to differ, I've had my Dell laptop for around half a year now and it has instant on for email etc on it (it's a Latitude E4300 if you want to check).
Reply to this comment
by rayzoredge September 29, 2009 5:43 AM PDT
I think it's DELL that has "its first take on 'instant on."
by Kev-LG September 29, 2009 3:45 AM PDT
The future is here, it's just not evenly distributed. Although I wish it would distribute it's way over here a little quicker, I can't wait for the new charging revolution!
Reply to this comment
by jpoirier587 September 30, 2009 8:09 PM PDT
charging revolution? *** are you talking about? its a gimmick, that's all. it just a slightly more inefficient method of what you already have. i suggest you get a brain because waiting for Tesla's dream to come true isn't going to happen in the foreseeable future. Then again you probably don't even now what I'm referring to do you?
by rsx1 September 29, 2009 5:15 AM PDT
Once the range is there (or maybe it is) then in theory you could charge a roomfull of laptops from one outlet, no individual wires. That would be amazing.
Reply to this comment
by NikEst September 29, 2009 6:43 AM PDT
But that's not what this is. They call it wireless charging because you don't have to plug a wire into the computer. Instead, you have to place your laptop on a flat surface. I assume you have to always have this flat surface with you, which I also assume isn't a very portable option.
by mbenedict September 29, 2009 10:27 AM PDT
@NikEst: or you can just use the regular power adapter that comes with the laptop...
by rayzoredge September 29, 2009 5:50 AM PDT
Innovation, maybe? Phoenix and DeviceM have been doing the instant-on deal for a while now... first putting them on Asus motherboards. It's nice to see that the application is spreading, but what I would like to see is an instant-on for basic functionality with the OPTION to continue booting up the main OS. That way, you can instantly turn on your PC, check your e-mail, browse your routine sites and check your news feeds, and by the time that's all said and done, you can get a little notification in your taskbar saying that WIndows finally booted up, in which case you can close out of the basic OS and bring up the main OS "instantly" from there.

The wireless charging deal may not seem like a great deal now, but this paves the way for more applications. We've already seen wireless electricity in the UK... and when it finally comes down to putting those wireless nodes INTO homes, we can look into a future where setting your notebook down on any surface with a node on it can charge your notebook... wirelessly.
Reply to this comment
by NikEst September 29, 2009 6:44 AM PDT
I'd rather see my notebook be able to charge wireless in my lap. I think it's disingenuous to call something wireless charging if to use it you have to put your laptop on a flat surface, which I imagine has to be plugged in.
by jtlintstockings September 29, 2009 6:24 AM PDT
Look in the lower right hand corner of that laptop screen in the picture. No wonder the thing needs instant on.
Reply to this comment
by shellcodes_coder September 29, 2009 6:37 AM PDT
now crapple will copy this feature and will it core innovation...as usual LOL
Reply to this comment
by george_liquor September 29, 2009 1:38 PM PDT
Brilliant comment. LOLs all around.
by Vegaman_Dan September 29, 2009 4:15 PM PDT
Treating companies and their products with respect with the correct names will generate respect for your own comments as well. Terms like 'crapple' loses any chance of your comments being taken seriously.
by NikEst September 29, 2009 6:49 AM PDT
Is your only charging option that stand? That can't be portable and that looks very uncomfortable to use at your desk. Also, this doesn't have an optical drive, which I think is a terrible move for a business laptop. I know CDs are on their way out, but businesses tend to be behind the curve of tech trends and CDs still exist and are useful. I think PC makers are starting to miss the mark. A half inch versus an inch thick is not a big deal. Now, 3 lbs versus 4 lbs is, so light is a good way to go, but to make a laptop so thin it doesn't have an optical drive is stupid (MacBook Air included).
Reply to this comment
by mbenedict September 29, 2009 10:29 AM PDT
Um, the article clearly mentions that the charging dock is a $199 extra. What do you think, those who didn't pay the $199 extra don't have a way to charge their laptops?
by franglais--2008 September 29, 2009 7:06 AM PDT
@ RAndom_Walk: You don't understand the concept, or are just another fanboy?
It's touted as "wireless" charging, but don't take it as wireless as in wifi; think more like Tesla, but safer and more enclosed.
Oh, but you knew that, didn't you? ;-)
Reply to this comment
by MaLvaDo39 September 29, 2009 7:35 AM PDT
So it has to be docked to charge wirelessly?

Sounds a bit misleading...
Reply to this comment
by ekholbrook September 29, 2009 7:49 AM PDT
So what would you like to carry around to the local Starbucks... This "wireless" metal shelf that won't fit in your briefcase and that still needs to be plugged in.... or a small AC brick that fits in your pocket.

This is silliest use of technology I've seen in some years. Why would ANYone buy something that makes it MORE of a pain in the rear to drag around a laptop on the road?
Reply to this comment
by mbenedict September 29, 2009 9:39 AM PDT
What are you talking about?

The wireless dock is optional. In many office settings you'll probably see it "hidden" as part of the desk. You get to the office, and by just placing the laptop on your desk it automatically starts charging & wirelessly connects to your desk monitor, full-size keyboard, printers, etc.

If you want to go to Starbucks just use the laptop's internal battery, or bring the regular charger, like any other laptop.
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