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Windows 7 bested by XP in netbook battery life tests

by Vladislav Savov posted Nov 12th 2009 at 3:51AM

The venerable 2001 classic of an OS, Windows XP, strikes again. The scribes over at Laptop have put together a rather damning battery life comparison between old greybeard and the fresh Windows 7, which finds that on average netbooks get 47 minutes less battery life with the upgraded software. In the case of the ASUS 1008HA, that deficit was a meaty 57 minutes, or 16.7%. Liliputing and jkOnTheRun have run their own tests which invariably reached the same conclusion. Adding these data to an earlier comparison with Snow Leopard, where Windows 7 was again markedly worse than its competitor, leads us to the conclusion that perhaps Microsoft's 7th heaven hasn't quite been optimized for the mobile mavens out there... yet.

Read - Stick with XP? Windows 7 Battery Life Worse on Netbooks
Read - Windows 7 + netbooks = lower battery life?
Read - Netbook Battery Tests: Windows XP vs Windows 7

Regen's ReNu solar panel system in the flesh

by Paul Miller posted Nov 12th 2009 at 3:23AM

While great in concept, solar powered gadgets just never seem to be very practical at the end of the day. Regen's tweak on the formula might help a little, by stuffing a battery into the solar panel itself, meaning you don't have to keep your iPod plugged in for a painfully long trickle charge or juggle multiple elements to make it work (there's a USB plug on the side). ReNu also has batteries in its various docking accessories as well, all of which can be charged by the ReNu panel or by AC power. It's not going to turn the emerging market on its head, and at $199 for the ReNu unit by itself it's not cheap either, but it seems like a logical direction for sun-fueled devices -- and looks pretty cool doing it.

Gallery: Regen's ReNu solar panel system in the flesh

Eneloop Stick Booster supplies emergency power to your portable devices

by Joseph L. Flatley posted Nov 12th 2009 at 1:23AM

Any time a company both enables our gadget addiction and discourages wanton battery consumption we have to consider it a good thing -- and, indeed, Sanyo's wicked-rechargeable Eneloop batteries already have quite a few fans here at Engadget HQ. But what's a busy gadget hound to do on the go, you ask? Try this one on for size: the Eneloop Stick Booster ships with two AAs and can be used to charge them, via any USB source. From that point the device can be used to power your PMP for roughly 90 minutes. How great is that? To be released in Japan on December 1 for an unspecified price, and worldwide whenever the company sees fit. PR after the break.

Gallery: Eneloop Stick Booster

[Via Akihabara]

Continue reading Eneloop Stick Booster supplies emergency power to your portable devices

MacBook Pro battery flies off the handle, busts wide open

by Darren Murph posted Nov 11th 2009 at 12:23PM

Here's the thing: that horrifically swollen, completely destroyed battery you're peering at above isn't as rare a sight as it should be. If you'll recall, we've personally covered at least four MacBook Pro battery explosions, and we've also seen a similar amount of volatility over on the PC side. The story behind this one is as follows: a 17-inch (non-unibody) MBP owner was using his machine on a desk (thankfully), when suddenly an odd noise began to increase in volume; following that, the entire machine "jumped up" slightly and turned off, and this battery is to blame. Oh, and if this all-too-commonplace occurrence happens to you next, let's hope you aren't actually using your laptop on your, um, lap.

Gallery: MacBook Pro battery flies off the handle, busts wide open

PowerGenix NiZn rechargeable AA batteries: finally, some cells worth buying

by Darren Murph posted Nov 9th 2009 at 11:22AM

It's rare if a month flies by without some random university or DIYer proclaiming that the next major jump in battery technology is just over the horizon, and yet, here we are -- in the year 2009 -- still buying overpriced AA cells from Duracell and Energizer that deplete far too quickly given the technology available. Heck, even those standard rechargeable cells have seen their performance degrade hastily in our experiences, and we've been longing for a rechargeable cell that was actually worth its salt for a long, long time. Frankly, we passed off the PowerGenix NiZn battery as just another slice of vaporware when it was first uncovered in late 2008, but after they went on sale this summer, we decided to really put a set through the paces. Click on to find out how we feel about 'em after months and months of hardcore usage.

Continue reading PowerGenix NiZn rechargeable AA batteries: finally, some cells worth buying

Fluidic Energy promises better, cheaper metal-air batteries, wins DoE grant

by Donald Melanson posted Nov 5th 2009 at 6:05PM

It's not the only company working on metal-air batteries, but Scottsdale, Arizona-based Fluidic Energy may be in a better position to deliver on its promises than most, as it's just managed to snag a $5.13 million research grant from the US Department of Energy to further develop the "breakthrough" technology. While that word's thrown around quite a bit these, in the case, it may actually live up to the hype, considering that breakthrough in question would be a battery that's able to deliver eleven times the energy density of the best lithium-ion batteries for less than one-third of the cost. The key to that, it seems, is the battery's use of an ionic liquid as its electrolyte, which is described as a "wonder fluid" since it's able to last significantly longer than other fluids because drying out isn't a problem, and because it brings with it a significant boost in energy density. Of course, the company still apparently doesn't have an actual battery to back up its claims just yet, and it's not making any promises about when it might deliver one either.

Rechargeable zinc-air batteries promise a lot, we'll see if they deliver in 2010

by Vladislav Savov posted Oct 30th 2009 at 6:58AM

Is there any other field of technology that promises as many revolutionary innovations as battery makers do yet delivers so few? We've heard of battery life being made four times, eight times, even twelve times better... and seen pretty much none of it pan out in any sort of meaningful way. Zinc-air batteries are also nothing new, but now some whizkids up in Norway have figured out how to make them rechargeable and set up an entire company, ReVolt, for their commercialization. With more than double the energy density of regular Lithium-Ion batteries, safer operation, lower cost of production, and environmentally friendlier ingredients, ReVolt's tech sounds as sweet as anything, but we'd advise waiting for the pudding-based proof before getting excited. Plans are for small hearing aid and cellphone batteries to show up in 2010, and if all goes well there, larger cells for electric vehicles could also follow. Sure.

[Via PhysOrg]

Sony VAIO X reviewed: outrageous battery claims tested, nearly vindicated

by Thomas Ricker posted Oct 21st 2009 at 3:51AM

At this point you know pretty much all there is to know about the amazingly thin (0.6-inches), light (just 1.4 pounds or 2.2 pounds with extended battery wedge), and expensive ($1,299 base) VAIO X ultra-portable laptop from Sony. The only thing missing were tests to confirm or deny Sony's claim that the VAIO X battery lasts "all day and well into the night and will set the new standard for battery stamina," as proclaimed at its IFA unveil back in September in Berlin. A bold claim that Laptop Magazine has now put to the test. The result? Well, first of all, if you're hoping to get anything close to the hype then you'll have to opt for the extended battery -- the standard 4-cell battery is only rated for about 3 hours of power. Fortunately, the extended battery bolt-on (literally, it attaches to the bottom with two screws) is included in the X-series price -- smart move Sony. According to Laptop's tests, the VAIO X merrily pumped away for nearly 10 hours using WiFi (GPS and 3G turned off) thereby easily laying to waste most 6-hour, 6-cell netbooks. Impressive. For booting and processing everyday tasks, the 2GHz Atom Z550 paired with 2GB of memory and 128GB SSD did very well against netbook-class machines but suffered dearly with regard to 3D graphics performance. Likewise, the X couldn't handle full-screen flash video without chop. Sure, the mass market will ultimately shun the X as it did its VAIO X505 ancestor, but it will definitely find its niche amongst Windows 7 road warriors with pockets deep enough to afford it and egos fragile enough to by fed by the envious stares of others.

Technocel PowerPak pulls double duty as portable battery and home charger

by Darren Murph posted Oct 15th 2009 at 2:37PM

Wouldn't it be nice if your home phone charger could double as a charging device itself when taken on the road? Yes, yes it would. Technocel undoubtedly agrees, as its PowerPak does just that. When plugged into a standard wall outlet, it can simultaneously charge whatever USB device is plugged into it (amongst others, considering the bundle of tips that are included) and juice up its internal cell; once unplugged, the integrated battery can provide enough power to a dead mobile to let you yap for around three hours, or just enough to make it through whatever sobfest your ill-willed SO has planned for you next week. It's expected to go on sale in around a fortnight at various retail locations and Sprint stores.

Gallery: Technocel PowerPak pulls double duty as portable battery and home charger

Continue reading Technocel PowerPak pulls double duty as portable battery and home charger

Acer issues recall for some Aspire laptops

by Laura June posted Oct 10th 2009 at 3:32PM

Acer's issued a voluntary recall for some of its Aspire laptops -- all of which were manufactured before September 15th of this year. It seems that some of them are experiencing an overheat of the microphone cable after "repeated" and "extreme" pressure is applied to the left palm rest. The affected models include the AS3410, AS3810T, AS3810TG, AS3810TZ and AS3810TZG. Acer's set up a website where you can enter the serial number of your device to see if yours might be one of the affected.

Mizzou's nuclear battery to power things smaller than your brain can imagine

by Darren Murph posted Oct 10th 2009 at 11:52AM

Oh yeah, everyone loves the extended battery, but are we really kosher with the added bulge? A team of boffins at the University of Missouri certainly aren't, as they've spent the last good while of their lives researching and developing a new nuclear battery that could be used to power devices much smaller than, well, most anything. The radioisotope cell, as it's called, can reportedly "provide power density that is six orders of magnitude higher than chemical batteries," and while some may question the safety of this potentially volatile device, the liquid semiconductor (used instead of a solid semiconductor) should help ease concerns. The current iteration of the device is about the size of a penny, and it's intended to power a variety of MEMS systems. Now, if only these guys could find a way to make a standard AA last longer than a week in our Wiimote, we'd be pleased as punch.

[Via BBC, thanks Jim]

Sanyo Eneloop batteries good for 1,500 recharges, maintain 70% charge even after 3 years in storage

by Thomas Ricker posted Oct 6th 2009 at 9:50AM

We've got a thing for Sanyo's Eneloops. Had it ever since Sanyo released us from the clutches of underperforming NiCad and NiMH batteries about five years ago. Its latest AA and AAA batteries can be recharged about 1,500 times, that's about 3 years of continuous service and 500 more cycles than competing rechargeables, according to Sanyo. The batteries also feature a low self-discharge rate so they remain usable even after they've been charged and stored in a drawer. In fact, an Eneloop will maintain about 75% of its charged power even after three years. Impressive, we know, and the reason they come pre-charged from the factory for immediate use of out the box. And compared to disposables, they're as good for the environment as they are for your wallet over the long run.

Power generating backpack is a gift from the gadget gods, Uncle Sam

by Thomas Ricker posted Oct 6th 2009 at 5:49AM

Without a doubt, the military is home to some of the best gadgets. Fortunately for us, the non-lethal stuff often makes it into the hands of consumers after companies finish milking the government of its R&D budget. Case in point: this electricity-generating backup. Designed for the military, the kinetic energy pack is suspended on a rail that generates electricity as you walk. The power generated will charge a standard US Marine-issue lithium ion battery pack or can be directly routed to whatever device you want to charge. The obvious benefit would be limitless power in the field freeing troops from carrying extra batteries on long missions. A power meter on the shoulder strap lets you monitor performance while a three-stage resistance device lets you regulate the power output. A braking mechanism lets you lock down the pack when you want to keep the pack steady. Otherwise, it looks like it'll generate about 8 watts of power while walking or 44 watts of power when running. Do want. See it in action after the break.

[Via besportier]

Continue reading Power generating backpack is a gift from the gadget gods, Uncle Sam

IBM kicks off Battery 500 Project to boost EV range, 500 miles or bust

by Tim Stevens posted Oct 2nd 2009 at 9:31AM

IBM kicks of Battery 500 Project to boost EV range, 500 miles or bust

Electric cars certainly can look nice and promise big things, but the ones we can actually buy today rarely top 50 miles of range. Those promised for the next few years probably won't break 100, and they're not going to find wide success until things get a lot better in that department. That's the initiative of IBM's Battery 500 Project, bringing together a number of the brightest minds in anode/cathode tech to boost battery storage density by a factor of 10. The focus is on lithium-air technology, which uses nanoscale semiconductors and an open design relying on the air around us for collecting positive ions. About 40 brains are involved in the project at this point, and we think their work is of vital importance. So, if you would, please stop posting funny things on the internet until they've come up with a solution. We'd like them to be able to focus completely without any LOLcat distractions.

[Via Slashdot]

Carbon nanotubes find yet another purpose, could star in ultra-reliable batteries

by Darren Murph posted Sep 21st 2009 at 8:29PM

Carbon nanotubes are kind of like peanuts. They both seem pretty simple at first glance, but with a little work, you can make pretty much anything out of 'em. Take this case, for example, as MIT boffins have discovered that by forming the tube-shaped molecules of pure carbon into minuscule springs, they could be "capable of storing as much energy, pound for pound, as lithium-ion batteries." The real kicker is exactly how they'd do it -- "more durably and reliably." Essentially, these newfangled cells could be left alone for years on end without losing their charge, and unlike conventional batteries, these wouldn't suffer from performance degradation when exposed to temperature extremes. Of course, anything as pie-in-the-sky as this is probably at least a decade or so out from Walmart shelves, but considering that the group responsible has already filed a patent, we'd say they're pretty confident in the possibilities.

[Via Physorg]