charging

Start-ups Green Plug and WiPower are working together on a universal wireless charger for portable devices, the companies said Thursday.

The partnership makes sense since GreenPlug has developed a protocol to allow power sources and portable devices to communicate, while WiPower has invented technology to transmit power wirelessly over short distances.

Green Plug's universal chargers allow portable electronic devices containing its embedded Greentalk chip to be charged from a universal port. Once a device is plugged in to a Green Plug charger port, the charger's Greentalk protocol reads the chip inside the device to determine the power supply … Read more

A MiFi is a nifty little device you can get from Sprint or Verizon here in the States. It receives a cellular data signal and then rebroadcasts it as a Wi-Fi connection.

However, one annoying thing is that when you plug it into a USB port, it insists on acting as a modem instead of a Wi-Fi access point. This means that you can't charge it from your laptop and share it the data connection. I ran into this issue at an airport when I wanted to charge the MiFi and share with my colleague, but I couldn't … Read more

The older your iPhone gets, the worse its battery performs. Don't blame Apple: it's just the nature of rechargeable batteries that they wear out over time.

Sadly, you can't just swap in a new one--not without some warranty-voiding surgery. But you can plug in external power, which is cheap, easy, and affordable.

For example, Meritline has an 1800mAh iPhone backup battery for $9.99 shipped. That's after applying coupon code MLC262531102717A (which expires Oct. 29) at checkout.

The standard iPhone 3G battery has an 1150mAh capacity, meaning this plug-in pack should afford at least 50 percent … Read more

I originally planned on writing my review of the Powermat magnetic inductive charging system by highlighting the innovation in the technology and the lack of necessity for a product that costs a serious amount of coin--$99.99 for the wired mat plus $40 for the charger--for achieving the same goal as a simple wire.

But then the Powermat took my iPod Touch captive.

First, the straight shooting: the Powermat system is indeed very cool. It does what it advertises and brings "wire-less" charging to devices that normally don't have the ability: the iPhone, iPod Touch, select … Read more

Powermat has been touting its wireless chargers for a while now--ever since CES 2009, quite frankly--but now they're finally available for you, the consumer, to purchase.

The Powermat is a one-pad, one-plug system (pictured above right) that charges all your gadgets in one place without wires. Your gadget gets a special "Powermat Receiver" sleeve so that it can use magnetic induction charging to power your devices. (Aren't familiar with magnetic induction? If you've got an Oral-B rechargeable toothbrush, or a Palm Touchstone charger for your Pre, it's the same thing.)

Read more of &… Read more

Editors' note: This is a guest column. See Matt Mattila's bio below.

As every major automaker reveals plans to sell electric vehicles, the future appears to be upon us, replete with silent, emissions-free, peppy, electric vehicles.

Given this impending electric-vehicle revolution, where are all of the electric pumps?

With electric vehicles, you could probably do away with stopping at fueling stations entirely, as the majority of your fueling, or battery charging, will be done overnight while plugged in at home or during the day while parked at the office. But because it is conceivable that not every trip will … Read more

The Dexim P-Flip is two, two, two products in one. It's a long-lasting external battery for your iPhone and a desktop stand that keeps it propped up nicely.

This folding, three-position dock bears more than a passing resemblance to a flip-phone, albeit one that's even thinner and more compact.

Consequently, it slips easily into a pocket. It's small, despite packing a 2,000mAh rechargeable battery that, according to Dexim, will provide eight extra hours of talk time, 15 hours of games or movies, or a whopping 80 hours of music--I have my doubts about that last one.… Read more

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.

… Read more

I'm really praying this isn't another Adamo. The soon-to-be-introduced Dell Latitude Z will have a premium design, super high-end specs, and a lofty price tag. I've heard that all before, but wireless charging in a notebook? That's new.

The laptop is said to have a 16-inch display, which is a larger screen than your average business notebook. Other than that, the details are few and far between. Apparently it will pack an Intel processor and, you know, RAM and a hard drive.

But back to the wireless charging that's being reported by Forbes, the details … Read more