Post Thumbnail

Don't be too quick to toss out the battery from that ancient laptop -- it might just be the key to powering homes in developing countries, and helping the environment in the process. IBM researchers have revealed UrJar, a device that turns old lithium-ion battery packs into rechargeable energy sou

10 days ago 0 Comments
December 9, 2014 at 3:02AM
Post Thumbnail

Curious about what the official word regarding the Boeing Dreamliner's faulty battery is? Of course you are. The National Transportation Safety Board says that the reason for the non-fatal fire was due to \"deficiencies in the design and certification process,\" and has a few fingers to point. The b

17 days ago 0 Comments
Post Thumbnail

So long as you still need physical ID cards and cash, you'll need something to carry them -- but that doesn't mean that you're stuck with a low-tech purse or wallet. StreetSmart is crowdfunding the SmartWallet, a money holder with both a Bluetooth-connected GPS locator and a 1,000mAh battery to c

25 days ago 0 Comments
Post Thumbnail

Fuel cells may be a practical reality, but there aren't many choices for the fuel itself -- you usually have to rely on hydrogen, which dictates where and how those cells work. The University of Utah may have a clever alternative in store, however. Its researchers have developed a cell that runs

1 month ago 0 Comments
Post Thumbnail

Fast-charging batteries are all nice and good, but the lifespan matters, too -- why should you have to replace power packs (or entire devices) every couple of years ? You may not have to give up performance or longevity if researchers at Nanyang Technology University have their way. They've develo

2 months ago 0 Comments
Post Thumbnail

One of the biggest challenges of switching to clean energy sources is finding a place to store excess power. That's relatively easy on a small scale, but it's much more daunting for your utility company. Southern California Edison is apparently ready to take on that challenge, however. It just lau

2 months ago 0 Comments
Post Thumbnail

It's hardly uncommon for smartphone batteries to lose some of their oomph over time, but Apple just might be able to help if your iPhone 5's battery has been flakier than usual. The folks in Cupertino have figured out that some of the iPhone 5s sold between its launch in September 2012 and January

3 months ago 0 Comments
Post Thumbnail

Forget lab-made materials like graphene -- natural, old-fashioned hemp may be the ticket to our energy future. Researchers have demonstrated that you can make very efficient carbon electrodes simply by heating hemp bast fibers in a two-stage process. The resulting substance holds as much energy

4 months ago 0 Comments
Post Thumbnail

What if running a 5K could do more than just burn calories? A team at the University of California San Diego have developed a temporary tattoo-like sensor that keeps tabs on exercise and converts sweat into electricity. The removable device monitors lactate: a substance that's present in perspirat

4 months ago 0 Comments
Post Thumbnail

If you're tired of lugging around both an external battery pack and a power adapter to keep your iPhone running, today's your lucky day. Nomad (the company behind the ChargeCard) has started taking pre-orders for the NomadPlus, a 1,500mAh external battery that takes advantage of the Apple's offici

4 months ago 0 Comments
Post Thumbnail

The lithium ion batteries in your mobile devices are inherently limited by the \"ion\" part of their name; they can safely use lithium only in the part of the cell that supplies ions, wasting a lot of potential energy. It's good news, then, that researchers at Stanford have developed a new lithium b

4 months ago 0 Comments
Post Thumbnail

Welcome to Feedback Loop, a weekly roundup of the most interesting discussions happening within the Engadget community. There's so much technology to talk about and so little time to enjoy it, but you have a lot of great ideas and opinions that need to be shared! Join us every Saturday as we highlig

7 months ago 0 Comments
Post Thumbnail

It's always sad when a company stumbles during its victory lap, but as Sony looked to gracefully exit the PC business, some spontaneously combusting laptops ruined the day. The company has now issued an update about the Vaio Fit 11A repair program, saying that reservations are now being taken and

7 months ago 0 Comments
Post Thumbnail

Tesla's Model S may have a good safety record, but even two accident-related battery fires are too many for the perfection-obsessed (and image-conscious) automaker. Elon Musk has revealed that every Model S built from March 6th onward has both aluminum deflector plates and a titanium underbody sh

8 months ago 0 Comments
Post Thumbnail

There are actually two \"Ones\" that launched this week. The star attraction is undoubtedly the HTC One, but let's not forget the brand-new Snapdragon 801 running under its hood: a cutting-edge processor that will also power the Sony Xperia Z2 and the Samsung Galaxy S5, but which happens to have rea

8 months ago 0 Comments