Smart Phones and Wireless Charging

Wireless charging is the future for all mobile devices

When it comes time to evaluate and buy your next smart phone, you can add wireless charging to the list of “gotta-have-it” features. This is a real convenience, and one I expect to see become more and more common in all mobile devices.

I recently purchased a Nexus 4 Wireless Charger, which provides wireless charging capabilities to Google’s latest Android-based smart phone.

But this capability is available in some Windows Phone handsets now as well. For example, the Nokia Lumia 920 has wireless charging built-in and the Nokia Lumia 820 can be updated with wireless charging capabilities by purchasing a Wireless Charging Shell in any of five colors. (They’re just $25 each at AT&T Wireless.)

What these devices all share is compatibility: Each uses the Qi wireless charging standard, as do various wireless chargers. Nokia offers two, currently, the Wireless Charging Stand and the somewhat whimsical Wireless Charging Pillow by Fatboy.

The Nokia Wireless Charging Stand, in particular, appears to be much more sophisticated than the charger I got in that it offers additional features like the ability to enter a useful “desk” mode with a clock or whatever other app-based live information. This is a common feature with proprietary Android docks as well, but the Nexus 4 Wireless Charger just does one thing: Charge the device.

The Nexus 4 Wireless Charger also has one other downside: You have to position the device properly on the charger in order. If it’s too low on the angled charger, which is easy to do, the device won’t charge. I’m also surprised you don’t get a helpful “charging beep” more quickly; this lets you know the device is charging, of course, allowing you to safely walk away.

Still, this is the clearly the future. And while plugging in a mini-USB cable isn’t exactly difficult, placing a device on a charger surface is much easier. And it will get even easier as entire surfaces on desks and other areas of home and work being offering this capability in an integrated fashion. Imagine charging your smart phone (or other device) simply by setting it down on virtually any surface. That’s where this is heading.

Pedants will note that a wire is, of course, involved. You have to get electricity to the charger somehow. But the “wireless” bit here comes from the connection between the device and the charger. That is indeed wireless.

Here are a few shots of the Nexus 4 Wireless Charger. I’ve ordered a Wireless Charging Shell for my Nokia Lumia 820 so I can test that device with it as well.

Discuss this Article 32

GoodThings2Life
on Feb 21, 2013

The Nokia versions -- and there are three actually... the two you mention plus a flatbed version sans pillow covering -- are much more graceful in tolerating off-angle devices. Not sure if that's a result of the phone or the charger, but either way it's a great feature, and I use it pretty religiously.

I'm sure the iPhone 6 will have it next and claim it as an original, magical idea.

pthurrott
on Feb 21, 2013

Thanks ... Part of it might be the phone, too, in that the charging bit is located wherever in the phone and is not easily accessible. I'm curious how/if the Lumia 820 will work with this thing.

Bruno H
on Feb 22, 2013

And of course, when Apple releases this, it will be a new magical standard called iCharge which of course is completely incompatible with Qi.

pthurrott
on Feb 22, 2013

Of course. :) AirCharge works too.

MikeS
on Feb 21, 2013

The free wireless charger for the 920 that was given away by Nokia/AT&T is much larger than this one appears to be, and it is flat. While it doesn't prop the phone up at all, it is relatively easy to make the inductor in the phone line up with the charging bits on the charging device.

Phugger
on Feb 21, 2013

The HTC 8X from Verizon has wireless charging as an exclusive feature. I really like it. My wife and I both have 8Xs so I bought the EverReady dual charger.
http://www.amazon.com/Energizer-Qi-Enabled-Position-Inductive-Charger/dp...
It can charge two phones wirelessly and a third device via it's USB charger.
PCH

sanjeev40084
on Feb 21, 2013

Paul, you should definitely check 'TYLT Vu' out. I know it's in coming soon but this is one charger i want on my desk when i am working on my computer.
http://www.tylt.com/vu/

neonspark
on Feb 21, 2013

I was never able to charge the nexus with the lumia charger. it would simply charge the nexus for 10 seconds and then quit, then resume after 20 and then quit again. the nexus, being android, sucks battery faster than the charger could provide LOL.

Bleedorang3
on Feb 21, 2013

I want one of these things for my car that I can stick one of those NFC tags on that turns on Bluetooth. Get in car, place phone on wireless charging cradle, NFC automatically turns on Bluetooth and connects phone to Audio system of car.

MyGarageBay
on Feb 21, 2013

I also have the HTC 8x from verizon but since I use the Otterbox commuter case was not sure the wireless charging would still work. I probably should see if Best Buy or the Verizon Store will allow me to try before I buy. I had the wireless charger when I use to use the Palm Pre2 and loved it for the convience. The Otterbox case is not easy to remove and hate to have to take it off everytime I want to charge the phone.
Has anyone tried a wireless charger with a case?

cornholio
on Feb 21, 2013

I don't think you'll have any problems. I have a speck candyshell case on my 920 and it works fine. I can hold the device 3-4 inches above the charging pad and it still works.

jwillardcurtis
on Feb 21, 2013

Agreed ... I got the free charger from ATT with my Lumia 920. Its seems to be fairly robust to how the phone is placed on it. Frankly I love being able to set the phone down one-handed; I don't see myself ever buying another phone that doesn't offer wireless charging.

hck939597fn
on Feb 21, 2013

I find the wireless charging for my Nokia 920 to be much slower than the regular charge. I guess you get what you pay for...

SoundersFan
on Feb 21, 2013

For the DIYers out there, the Nokia charging plate is great for imbedding into furniture. I made a little wooden charging stand I keep next to my bed for over night charging in an afternoon.

delesh
on Feb 21, 2013

On the Nexus 4 you can turn on "Daydream" mode to run a clock or other widget when charging. Go to Settings->Display->Daydream then turn it on in the upper right corner and choose the app you want it to run when docked.

Also, if you update to the latest Android version 4.2.2 they added a default sound notification when wireless charging starts.

pthurrott
on Feb 21, 2013

Thanks. Oddly, Daydream was on, but it doesn't display when charging.

delesh
on Feb 21, 2013

Make sure you have "When to Daydream" at the bottom of the Daydream settings page set to "Charging" or "Either."

Also, it will not start the Daydream until it goes to sleep. You can check how long that will take in Settings->Display->Sleep.

pthurrott
on Feb 21, 2013

:) Thanks.

*Just* figured that out.

Mogg
on Feb 21, 2013

I bought the pillow charger for my g/f to charge her Nexus 4 for Christmas based off of Engadget saying their Nexus 4 charged just fine on it.

Her Nexus 4 did not charge well at all. She couldn't just set her phone down on it without having to position it a certain way. Once she did it would sometimes lose connection and would take 10+ hours to fully charge.

I bought her the Nexus 4 charger for Valentine's Day and it works perfect with her Nexus 4. She has been able to just set it to the charger without having to think about positioning for a week now with no issue.

Maybe the pillow charger is bad or it just isn't very compatible with her Nexus 4. My co-worker brought it home last night to test on his 920. I'll know by this weekend.

MorganRW
on Feb 21, 2013

The question I have is my instincts go against using these charging stands unless a charge is needed. I like the idea of the desk clock with my Nokia 920 and charging stand. They market these things telling us to just toss them on the stand when you can to keep them topped off and to take advantage of the apps. I would like to know how this affects battery life as I have always been told not to charge until you reach 10% or less. I use a stand on my nightstand as my phone is a great alarm and bedside clock. When I arrive at the office my phone is only down to 95% or so. Will tossing this on the charger at work with the phone already nearly fully charged lead to a faster battery death? If this prematurely kills the battery life, I would like to see them build in user definable charging thresholds such as don't accept a charge until the phone reaches a certain percent. Of course this would not allow the always on clock face but at least I could still see texts alerts and such come in. I know I could always unplug the charger and use it as just a stand but that seems like a waste and defeats the whole purpose as well. Anyone have any information on this?

arrow22
on Feb 22, 2013

The "memory effect" which you're describing applied to Nickel Cadmium batteries. NOT lithium-ion. And even then, it's debatable if the phenomenon ever really existed (see the Wikipedia page on the subject). Li-Ion will lose capacity over time, at a rate that is dependent on its average temperature and average state of charge.

Just plug the phone when you need to and keep it away from high temperature sources. Modern devices are engineered to never exceed certain limits of charge or depletion that would damage the battery.

Plus, you'll probably be upgrading your phone every 2-3 years anyway, so there's really no point is giving yourself all this trouble!

BrickEngraver
on Feb 21, 2013

Wireless charging is really the way to go, and Nokia 920 seems to work really well for me. I like it because I always get settled in and then forget to plug in my phone. Now can do it in the dark. One of main reasons picked 920 over the HTC. And really easy to position. Nice little friendly confirmation sound to know you hit the basket and know you are safe.

rvail@netzero.com
on Feb 21, 2013

This would be a cheap alternative, if it works with other devices:
Palm Touchstone Charging Dock:
http://www.amazon.com/dp/B002CMEIWK
Works great with my Palm Pixi Plus phone.

elfman12
on Feb 21, 2013

Love doing overnight charging wirelessly. Only downside is that when the charger (the one that came with my 920) isn't charging a device, it emits something that sends a "chirp" to the AM station that I wake up to on my clock radio about 1 foot from it. It's REALLY annoying, but while actually charging it (mostly) doesn't emit those interference chirps.

MorganRW
on Feb 22, 2013

Try ditching the clock radio and use your 920 as an alarm clock. I use the wireless charging stand and the alarm clock that is built in to WP OS is pretty slick. You can set different alarms for week days for instance and have different or no alarm on the weekends. Also the sounds begin softly and then ramp up with each sequence waking you gently instead of a loud jarring blast. The alarm will even work if you have the phone set to silent. With a snooze button it really is all you need. Then you can use a free app like IHEARTRADIO to listen to your AM station. I have been using this as my only alarm clock since the the first WP release years ago and it has never failed me. Now with the wireless charging stand it really is the alarm clock of the future. Give it a try.

elfman12
on Feb 22, 2013

Hmmm, thanks - might need to give that a try. Although I wonder if it's just the Nokia pad that does this. Does anyone else notice this same thing with a different Qi charging pad?

johnwbaxter
on Feb 21, 2013

Starting with my first phone with a flimsy-looking connector I have feared breaking the connector in the phone. (I never have.) Wireless charging avoids that worry.

[The fire paranoia will be taken care of by the time I actually buy a wireless charging device. How paranoid? I don't leave new electric things plugged in while I'm out, for a few days of use.]

zorb58
on Feb 21, 2013

I can't wait to get a new phone with wireless charging. I plan to get several charging stations and mounting them under some of the thinner desks/tables around the house!

noirsoft
on Feb 21, 2013

I really like the JBL speaker dock charger. When the phone is placed on it, it actually lights up four "corners" to show you optimal place ment of the phone.

CSMR
on Feb 22, 2013

I think it's a gimmick myself:
- Any phone will also have microUSB and the ability to charge from that
- It adds weight, cost and complexity to the phone
- It adds size and cost to the charger
- Charging is slower
- Time saved by user is negligible

pthurrott
on Feb 22, 2013

An LTE chip adds weight, cost, and complexity too.

This isn't a gimmick. This is how things will be charged in the future. And these charging surfaces will be everywhere: Desks, meeting tables, planes, cars, everywhere.

MorganRW
on Feb 22, 2013

So how long have you been an iPhone user? JK.
-Yes every phone does have micro USB however it only fits one way. Not as easy as just setting on the plate or stand in the dark or even a lit room for that matter.
-The weight added to a phone is negligable. Watch a teardown video and you will see the wireless charging receiver is a loop of copper wire as thin as paper
-I can't speak or everyone but I have a wireles charger on my desk at work and my nightstand at home. When I travel, I take my micro USB charger that came with the phone so the wireless charging weight is a non issue. As far as cost, the plate was given free with the 920 and if you dont want the stands, you don't have to buy them.
-Charging is a bit slower but not by much. I expected it to be much slower but I was shocked at how quick it actually is.
-I will argue on time saved as grabbing a cable, figuring what side is top, inserting into the phone (especially in the dark) will never be as quick as simply placing the phone on the charger. You may argue that Apple's omni directional connector and the cradle are close but they still aren't as quick.

Please or Register to post comments.

IT/Dev Connections

Las Vegas
September 30th - October 4th

Paul ThurottYou'll have the opportunity to experience:
• 120 Technical
Sessions
• Networking with Peers
• Expert Speakers


Come See Paul Thurrott & Mary Jo Foley in Person!

Register Now

Office 365 InfoCenter

Get the latest insight and info from Paul

Read Now!

What I Use