CellphoneBattery
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Sony announces new line of slim external batteries for smartphones and tablets
Sony announced on Monday that it will introduce a new line of external batteries for smartphones and tablets. Shipping in capacities of 3,500 to 7,000mAh, these external juice boxes weigh around 198 grams and measure 130.6mm by 12.9mm, making them about the size of a modern smartphone. Charging devices via USB, Sony claims that these portable pick me ups can be recharged up to 500 times and can charge most smartphones in an hour and a half. If toting another smartphone-like device around doesn't sound ideal to you, Sony will also be releasing smaller "stick-type" (think flash drives) external batteries in assorted colors. Both battery types are set to launch this fall, with prices ranging from 2,300 yen ($30) to 7,000 yen ($90). Wouldn't it just be easier to sell a marginally thicker phone with world-class battery life? A boy can dream...
Study: free apps drain 75 percent more power, badly built advertising to blame
It's often said there's no such thing as a free lunch and that's doubly the case for free apps. A team from Purdue University found that nearly three quarters of the power used when you run an app like Angry Birds is actually used for adverts. It developed eprof, an app that investigates what processes are draining from your battery. Loading it onto the very old-school Android-powered myTouch 3G and Nexus One (not to mention a HTC TyTn II running Windows Mobile 6.5). Drilling down into those Angry Birds figures: the game itself only consumes 18 percent of the power, while advertising platform Flurry has 45 percent and GPS location tracking a further 15 percent. Project leader Abhinav Pathak lays the blame at the feet of poorly coded apps that need to be made significantly more efficient. He's now working with Microsoft to bring his software to Windows Phone and will present his findings at the EuroSys conference in Bern next month. If you don't think you'll be able to give up free apps, just remember to shut down GPS before you start smashing those pigs.
NTT DoCoMo battery claims 10-minute charge time, we go hands-on (video)
It's not uncommon for our batteries to need the occasional boost while we're running around a trade show, but spending more than a couple minutes tethered to a power outlet can be seriously detrimental to our productivity. And we're definitely not alone. NTT DoCoMo, one of Japan's largest carriers, has developed a prototype battery that's capable of achieving a complete charge in just ten minutes. NTT reps weren't willing to get into much detail about the new technology, which currently employs an external lithium-ion battery sleeve and is only designed to support NEC's super-slim Medias Android (Japan only) smartphone. They did let us take a look at the battery sleeve's AC adapter, which supports output of up to 6.0 amps, but otherwise appeared to be fairly generic. A pair of amp meters compared the power draw of a standard battery with that of the ultra high speed charger, which pulled 0.55 amps and 5.86 amps, respectively -- at least according to the demo equipment on hand at NTT's CEATEC booth. The model we saw definitely looked very much like an early prototype at this point, and the carrier didn't seem to have any idea of when it may begin to be implemented in handsets and other devices, only committing to a release "as soon as possible." Still, we're pretty excited about the potential here (imagine being able to charge your phone completely with only a quick stop at an airport kiosk), and wouldn't hesitate to pick a battery up -- assuming of course that the final version is a bit more refined. Click on through the gallery shots below, or jump past the break for our hands-on video to get a closer look.%Gallery-135558%
Twirling battery concept promises a quick power fix
We've seen plenty spinning, twirling, and wind-up gadgets from Sony and others, but nothing quite like this battery concept designed by Song Teaho and Hyejin Lee. While there's still a bit of work to be done with the actual "working" part, the concept is to simply let you twirl your cellphone battery around your finger a few times for a quick bit of juice to send a text or make a call -- the designers estimate 130 twirls will give you two minutes of talking time. Of course, the same idea could also be applied to batteries for other devices, although you'd probably have your work cut out for you trying to charge your laptop battery. [Thanks, deej]
IEEE begins work on new cellphone battery standard, we circle 2029 for ratification
You'll excuse us for poking a bit of fun at the IEEE, but after it took seven years to finalize a wireless standard that didn't change for most of that time, we have to wonder how long a new battery rulebook is going to take. IEEE Std 1725 is the current set of commonly agreed rules, in effect since 2006, but apparently "the cellular industry has grown tremendously since then" and our needs as consumers have changed. No kidding, 1GHz processors and 1080p video recording can kind of do that. The Cell Phone Battery Working Group (a real entity!) will hold its first meeting on the topic in February, and the final outcome will lay out up-to-date rules on the requisite quality, reliability, construction, and discharge characteristics of modern cellphone batteries. Let's hope "smartphones that last more than a day" figures somewhere on that list.
Exploding phone battery not blamed for Korean's death
This certainly won't be the first time that an exploding cellphone battery has been pegged with blame before all the facts shook out, but now it seems that the South Korean worker who perished yesterday was in fact not killed by his mobile. Reportedly, the National Institute of Scientific Investigation "said the injuries were too substantial to have been caused by a battery explosion," and an unnamed medical examiner was quoted as saying that it was "difficult to conclude that the damage of internal organs was caused by [the explosion]." Details are still likely to unfold in the coming weeks, as it will be about a fortnight before autopsy results are analyzed and a final conclusion is drawn. Seems that "virtually impossible" notion from LG may be accurate after all, eh?[Image courtesy of Yonhap News]
Chinese welder killed by exploding cellphone battery
It's all fun and games until someone gets hurt, and unfortunately, the latest case of exploding battery syndrome led to something far worse than a minor injury. Reportedly, a 22-year old Chinese welder actually perished after a cellphone battery residing in his pocket exploded. The eruption was so violent, in fact, that it "broke a rib and drove the remnants of the pack into his heart," and while rescue crews were able to get him to a hospital, he passed away shortly thereafter. Currently, the manufacturer of the phone and battery are being withheld, but expects in Jinta were dispatched in order to conduct an investigation.[Via Inquirer, image courtesy of ABC]
Moxia's USBCELL charges mobile batteries from USB ports
If you're one to actually remove the battery from your cellphone quite regularly -- do you yearn for that second backup battery to have built-in charging capability from a standard USB port? Moxia may have your answer, as its newer USBCELL battery product can charge without the need to carry along that extra charger. Yeah, we prefer to use our laptop PCs to charge or phones instead of a small, plug-in charger, which seems to be, umm, really difficult. Well, not really, unless you despise small and portable chargers (and many of them in your bag.) Now, we like the idea of many travel-friendly gadgets being able to be charged by a single USB-type charger -- but when taken just for a phone, the point of this device becomes, well, moot.
