PowerDrain
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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.
Researchers put smartphones on a power diet, drastically improve battery life
Nokia's Asha handsets already use browser compression to reduce data costs and power consumption for customers in the developing world, but the company's Finnish neighbours over at Aalto University have taken a totally different approach. By using a network proxy to squash traffic into bursts rather than a constant bit rate, and by forcing a smartphone's modem into idle mode between each burst, the researchers claim they can cut 3G power consumption by 74 percent. Now, we're fortunate enough to be surrounded by power outlets over here, but even we could use some of that.
Ventev EcoCharge whacks vampire draw, charges two devices for the price of one
Thought AT&T's Zero charger was going to cruise along with no competition? No sirree. Ventev has shown up here in Las Vegas to launch its (seemingly superior) competitor, the EcoCharge. Designed to (nearly) eliminate vampire power draw when no device is connected, this here charger one-ups those "other guys" by having room to invigorate a pair of mini-USB / micro-USB devices (one of those, plus a full-size USB at the top), and best of all, it won't take up 1.5, 2 or 2.5 slots on your power strip. The company claims that its approach to cutting down on vampire power drain -- the energy that's wasted when you leave a charger plugged in with no peripheral connected -- is better than other solutions out there, as a unit that completely kills the power when it's left alone requires an on / off switch or a "wake up" period before it storms into action. The EcoCharge continually pulls 0.025 watts, while Energy Star chargers can go up to 0.3 watts when not in use. Oh, and did we mention that it's shipping right now? Indeed it is -- in micro-USB or mini-USB flavors for $29.99 a pop. We stopped by the company's booth tonight at CTIA's MobileFocus event, and we learned that an Apple-centric version is just weeks away from shipping. As you'd expect, the bottom plug will be a dock connector, though the USB port behind the flip panel will remain all the same. We're told that the company will be doing its best to get the charger into Apple's sales channels, but you'll be forced by pay $5 more for that version over the other guys. Guess that 10 percent Made for iPhone tax hasta be paid by someone, right? %Gallery-88877%
SSD-maker responds to nasty report, says it'll do better next time
If you were shaken to your very core at the recent report that SSDs may not be as power-friendly as you'd been led to believe, drive-maker STEC wants to talk you down from the ledge. According to the company's Patrick Wilkison, the Tom's Hardware article which benchmarked (and gave failing grades) to power-consumption of the non-mechanical drives was flawed because, "They are using legacy drives, none of which will be used by any major PC OEM." According to Patrick (whose job, you might note, is to sell SSDs), new versions of the drives will / do have intelligent power management which circumvents the issues that report shed light on. Wilkison goes on to say that, "Drives will need to have very intelligent power management systems. Some of these SSDs will have them, and those (that) do not have such power intelligence will not be used (by PC makers)." So it's sort of like saying a car you buy in the future will get better gas mileage than the one you own now, provided the automaker cares about fuel efficiency. Small solace, we'd say.Update: We've gotten a statement from Micron concerning the report -- you can check it out after the break.
