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2011年7月6日星期三

Wholesale Electronics News - Battery life has been another thorn in the iPhone’s side

The Apple rumor mill went into high gear this week, spinning out this gem: Apple ordered 15 million iPhone 5 units from manufacturer Pegatron in time for a fall launch. Apple already unveiled iOS 5 at its worldwide developers conference earlier this year, which leaves only the iPhone 5 hardware as the real mystery.

Smartphones generally balance performance, battery life and size, and I’m hoping the iPhone 5 will lean toward better performance. The growth of performance-hungry apps such as augmented reality ones have been stunted under the current iPhone hardware. You can’t run more than two apps without running into performance headroom problems.

“If you want to navigate while listening to music, the phone will struggle with that,” says tech analyst Rob Enderle. “Once we have some performance headroom, you’ll likely see the shift to even thinner devices again.”

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Battery life has been another thorn in the iPhone’s side. The poor battery life has spawned an industry of battery-booster products, as well as tips on preserving battery life. Even worse, the iPhone battery is in a constant state of decay and will eventually need to be replaced. Yet Apple has made swapping a new battery a difficult, if not impossible, process by locking down the casing with tamper-resistant pentalobular screws.

“In short, the three vectors – performance, battery life and size – are far from ideal,” Enderle says.

There’s a good chance Apple will make small hardware improvements to the iPhone 5, such as improving the screen and glass design to prevent breakage. The iPhone 4 has been criticized for cracking easily.

"The iPhone 4 breaks more," says Kyle Wiens, CEO of iFixit, a Website that provides free repair manuals and advice forums mostly aimed at Apple products. (Check outCracking the Case of the Troublesome iPhone 4 Glass.)

On the flipside, a case can be made that the smartphone hardware may be reaching a point of diminishing return – that is, the iPhone’s hardware no longer being worth the jacked-up price tag. Consider the ubiquitous desktop: Truth is, few “power” users came close to using the full potential of these pimped out machines.

We already know that the sheer volume, for example, of apps on the App Store is a poor indicator of the quality of the store. I once thought about putting together a list of the worst iPhone apps, a counter-story to my list of 15 best iPhone apps for newbies. But where do you start? There are a lot of really dumb apps out there.

This issue of quality is exactly what comes to mind admidst the recent chatter that Apple might be leaning toward a slimmed-down iPhone, forsaking performance and battery size. The thinking goes that consumers want a more convenient phone (think: iPod Nano) that runs only a few of their most important apps.

Could Apple deliver a slimmed-down iPhone that’s more powerful than the iPhone 4? “It would be nearly impossible to do both given the current technology,” Enderle says. “Still, Apple does do things that have seemed impossible, and that would be the home run.”

CloudTags: iPhone 5, balance performance, battery life, size, laptop battery, LCD Monitor

2011年7月4日星期一

Samsung makes the bold claim Notebook Series 9 is the best

If you're after for a laptop that will add the least heft to your cabin bag, there are few notebooks more desirable at the moment than Samsung's Notebook Series 9 -- it definitely punches above its weight.

The Korean electronics collossus may be better known for home theatre, but it has used its engineering prowess in making TVs ultra-thin to create one of the most impressive Windows laptops we've seen.

Samsung makes the bold claim that it is the best in terms of weight and size among notebooks that use the very latest "Sandy Bridge" class of Intel Core chips, and we haven't yet seen a laptop to disprove it.

It also has gorgeous looks -- brushed gunmetal grey, made of real metal, not plastic faux-metal.

Size and weight

The Series 9 tips the scales at 1.31KG and is only 1.63cm at its thickest point.

Its casing is built from Duralumin, a lightweight material used in making aircraft, which Samsung says is twice as strong as aluminium but just as light.

What you get

The main chip powering the notebook is the "Sandy Bridge" Intel Core i5 -- the second-generation of Intel Core technology with considerably faster performance than the first release Core i5.

However, it is one of the ultra-low voltage versions, running at 1.4GHz, which means it will not be as fast as 'full-power' Intel Core i5s used in larger notebooks. One tech comparison site ranks its speed as similar to a high-end Intel Core 2 Duo from two years ago -- so the speed of the notebook will be like full size notebooks of a 2009 vintage.

If you're after full computing speed, Toshiba's Portege R700 or Sony's new Vaio Z may be a better choice, as both ultralights use full-power Intel Core chips.

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Samsung hasn't let its experience in manufacturing LCD TVs go to waste -- the 13.3" display on the Series 9 notebook is a vibrant ‘SuperBright Plus’ LED-edgelit display. Like LED-lit TVs, the ultra-thin screen is able to come on instantly rather than having a few seconds warm-up time.

It has a 1366x768 pixel resolution, so it's not 'full HD' like Sony's high-end models of Vaio Z, but then, it's not $4,000, either.

Slow, mechanical hard drives have been abandoned altogether for this new breed of laptop. Samsung is instead offering it with a 128GB solid state disk (SSD) which uses very high speed flash memory with no moving parts. This means initial startup and program loading is lightning fast compared to laptops using hard drives.

Samsung says the battery-life on the Series 9 is 'three times longer' than the previous model. To its credit, Samsung doesn't claim a theoretical maximum battery-life; it uses real-life examples: 7.7 hours running the BatteryMark standard battery testing software, and 4.7 hours playing a movie.

What you don't get in such a slim package is a DVD drive -- and we think that's probably not a bad thing. With the wide availability of downloadable movies and TV shows, and super-cheap USB memory keys, the only real reason to have a DVD drive these days is for software installation, and an external USB DVD drive will do the job for these occasions.

The webcam is a 1.3 megapixel model, which will give higher image quality than laptops packing only a VGA webcam.

It only comes in one configuration, with 4GB memory installed, so if you think you'll need more than that (and most people won't) you'd have to remove RAM modules from inside the machine and get higher capacity ones installed. 4GB is plenty for good performance under Windows 7 with many apps running.

CloudTags: Samsung Series 9, Notebook, maximum, computing, battery life, laptop battery, iPad Tablet PC, Hp 2230s battery

2011年7月3日星期日

Could WiFi Tech double smartphones battery life

We all know that using your WiFi features on your smartphones, tablets and notebook PCs can sap the battery power from those devices much faster than normal. Now a proposed new way of handling WiFi technology has the potential to extend the battery life of those devices, perhaps by twice the current amount. TechCrunch reports that the proposal comes from a computer science graduate student at Duke University.The student, Justin Manwelier, has called the technology SleepWell and for good reason. A WiFi enabled product usually has to stay on while waiting for its turn to download a file. That means that battery life is adversely affected. Manwelier uses an analogy to describe the current WiFi process. Currently workers head into and out of big cities during "rush hours" which naturally causes heavier traffic during those time periods. If companies staggered their work hours for their employees there would be less traffic and thus more free time. Manwelier states that his technology works in the same way, saying, "The SleepWell-enabled WiFi access points can stagger their activity cycles to minimally overlap with others, ultimately resulting in promising energy gains with negligible loss of performance."He adds that, " .... the testing we conducted across a number of device types and situations gives us confidence that SleepWell is a viable approach for the near future." While this new technology certainly sounds promising, there's no word on when or even if the SleepWell technology will be used in future WiFi devices.

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I wouldn't say this tech doubles battery life, maybe reduces WiFi battery drain by 50%, but wifi is not the only battery drain you have on a device, therefore it would be highly unlikely to actually double battery life.And even then there are still a host of other components that are sucking power which also need addressing. I think the biggest thing not addressed is the role of operating system used and how well it works to minimize waking up the CPU and other components from the lower powered states.I hardly ever use wifi on my thunderbolt but even using 4g my battery drain has not been that bad..

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2011年6月29日星期三

AMOLED screens impact Phone Battery Life

With AMOLED screens becoming increasingly popular on mobile phones, particularly Samsung models such as the Nexus S and Galaxy S 2, it's useful to know there's a way of reducing the impact they have on battery life.

Using Android's built-in system analysis tools, blogger Steve Mould set about discovering how much his battery was being drained by the screen itself. He then went on to find out whether using darker wallpapers, themes and apps would help to reduce power usage.

Guess what? It did.

It's worth mentioning this only works on OLED-based displays and not the currently predominant LCD/LED displays. That's because the backlight is always lit, regardless of what's being displayed. To achieve a black pixel, the light is blocked rather than turned off. In an OLED system each pixel is self-powered, which means black pixels are unlit, saving power.

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The most significant results were found by measuring the difference in battery usage between a Nexus S left for two hours displaying either a white or black screen. The bright screen caused the battery to drop 71 per cent compared to just 12.2 per cent for the dark screen.

If you like looking at a lot of equations, head over to the SHIFT_beeb blog and take a look. It's not an exact science, and in any case every user will get different results based on how they use their phone. If you're running a load of processor-intensive apps it don't matter if your wallpaper is black or white.

There are plenty of other ways of improving battery life. Reducing the display brightness below 50 per cent will work regardless of the screen type, as will turning off features you're not using at the time, such as Bluetooth and Wi-Fi, and ensuring background apps are behaving themselves.

CloudTags: How to, reduce, AMOLED screens, impact, battery life, laptop battery, LCD Monitor

2011年5月3日星期二

I'm wondering if it's symptomatic of the Android platform as a whole

Do you own an Android-powered smartphone or tablet? If so, how's your battery life?

I ask because based on what I've heard from others and experienced myself, it's atrocious. And I'm wondering if it's symptomatic of the Android platform as a whole, or just the nature of modern-day mobile gear. Cast your vote in our poll, then meet me below for more discussion.

As I noted in a recent BNET post, "The dirty Android secret no one's talking about," I first encountered battery issues with the Virgin Mobile Samsung Intercept. Out of the box, it couldn't last 24 hours--even with e-mail sync and other battery-consuming tasks disabled.

Rather, I'd start the day with it fully charged, and by late afternoon it would be dead. Thankfully, freeware app JuiceDefender made a huge difference, allowing me to go a full two days without AC assistance.

Then I updated the OS from 2.1 to 2.2 (Froyo), which I'd heard was much better at power management--and battery life actually got worse. Now, once again, I'm lucky Dell vostro 1510 battery,Dell xps m1330 battery to get 24 hours.

Last week I had the opportunity to review Samsung's Galaxy Tab Wi-Fi, which I found to be excellent overall--until the next morning, when I woke up to--wait for it--a dead tablet. The aforementioned JuiceDefender helps a little, but ultimately the Tab is seriously hobbled by its battery. And I am seriously disappointed.

Or perhaps I'm just spoiled. See, my iPad is the Energizer Bunny of tablets. I can easily go a week without charging it, including a few days when I don't even pick it up. It doesn't just sit there consuming power when it's off, which obviously the Galaxy Tab does.

Likewise, my iPhone 4 seems to sip juice, not guzzle it. I may see low-battery warnings after two days off the charger, but I very rarely pick it up and find it to be dead.

So those are my experiences. Now let's hear yours. Does your Android phone or tablet have disappointing battery life? Or are you just accustomed to plugging it in at night, no big deal? Heck, maybe your device hums along for days without needing a recharge Dell latitude d820 battery,Dell gd761 battery. Whatever the case, tell me about it in the comments!

Laptop batteries are crucial when working on the road. To get maximum performance from your laptop battery, fully optimize the laptop's power management features prior to use. However, there is a trade off when setting your laptop power management. You will achieve better power conservation in exchange for lesser computing performance. The power management system conserves the laptop batteries power by setting the processor to run at a slower speed, dimming the laptop screen, slowing down the hard drive when it's not in use and causing the machine to go into sleep or suspend mode when it is inactive. Your laptop user's guide will provide information relating to specific power management features.

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http://www.wholesaleeshop.com.au/Wholesale-Electronics-News/hows-your-android-smartphone-battery-life/

2011年4月25日星期一

Should you get a big-screen phone or a tablet?

Tablets are a relatively new entry to the Android ecosystem but even so, they’ve quickly become a popular gadget to have. Being always-on and always connected has made it the go-to gadget for checking email, catching up on social sites and browsing the web. On top of all that, some versions can even make and receive calls, turning them into an ideal all-in-one device. Some of the models to currently out (as of this writing) are the HTC Flyer, the newer Samsung Galaxy Tab models and the Motorola Xoom.

Meanwhile, device makers noticed that bigger screened phones measuring 4.0 inches and up have been well-received by Android fans. Where once only a handful of large display phones were available like the HTC Desire HD and the Dell Streak, manufacturers are now keen on making their own flagship phones to enter this lucrative market segment. The Sony Ericsson XperiaArc, the Samsung Galaxy S2, Motorola Atrix and the HTC Sensation are just a few of the recently released Androids out for sale. Powerful enough to go toe-to-toe against tablets (and a few regular computers), these so-called “superphones” are powered by dual-core processors, graphics chips and impressive displays.

In an ideal world, I’d say just buy both but our credit cards (and spouses) being the way they are, you probably can only get one. So we have to decide: should you get a big-screen phone or a tablet? Let’s break it down, shall we?

1. Web Browsing

A tablet no doubt has the greater browsing experience. With many browsers like Opera and Firefox providing an almost desktop-like experience when viewing web pages, you really can’t beat that with the smaller screen of a phone, even if it has a 4.2-inch display. And the bigger keyboard on a tablet also doesn’t hurt. Winner: Tablet

2. Movie Watching

It’s no contest: you need to get a tablet for this. The screen size says it all when you want to watch movies and shows on the go. It’s no HDTV but when you need a movie fix on a road trip, a tablet fares way better than a phone. Winner: Tablet

3. Social Networking and Calls

If you like to use social sites like Twitter, Facebook and such, tablets are nice but the handiness of a phone is better. You can easily whip it out as often as you want to tweet without getting crazy looks from the people around you. It’s also more comfortable than a tablet if you need to make or receive calls. But if you’re more comfortable resting your face against a tablet(Toshiba pa3356u-1bas battery), who am I to judge? Winner: Phone

4. Doing Real Work

A tablet might be useful managing to-dos and doing simple tasks but for money-making, sweat-and-blood work, you need something more than even what a phone or tablet can give you. A few amazing people can blaze through the day’s work without touching a laptop or desktop but if your work requires you to create stuff like budget reports, whitepapers or blueprints, neither one of these devices will be as elegant a solution as a full-blown computer. Winner: Tie

5. Games

It’s been proven that the top use of tablets are for games. For gamers weaned on the console and PC, this might seem like a head scratcher but touchscreens do make very good game platforms. A lot of big names like EA and Sony know this and are starting to bring more gaming into Android. Winner: Tablet

6. Portability

A big-screen phone, while bulky, is still a phone and will fit most men’s pants pockets or purses for females. Grab it off the desk and off you go. Tablets though are a bit bigger so it probably needs its own case or bag if you want it to tag along. Winner: Phone

7. Battery Life

Phones with oversized screens are known battery guzzlers. There have been many improvements in battery tech for the newer phones, but the fact remains that the smaller body of a phone cannot house a bigger battery. In fact, many sport the same battery capacities of their smaller cousins and this paired with a gigantic screen means you need to keep a charging cable handy if you want non-stop use of your phone. On the flip side, tablets can carry juice up to 2-3 days worth with regular usage due to the bigger satellite a200 battery,Toshiba satellite a100 battery capacities that come with them. Winner: Tablet

8. Connectivity

Both tablets and big-screen phones carry the same type of communication chips inside: WiFi, 3G, HSDPA, Bluetooth, GSM/CDMA. So the point is moot; you can get connected either way. If you need to be always connected to the internet, both types of devices can hook you up easily. Winner: Tie

9. Security

We know that you live in a good neighborhood yourself but a lot of times, you need to pass through bad ones to get to where you want to go. If you’ve been accustomed to using your device on the go, chances are you’re going to whip that out whenever you need to check something online. A tablet is much more flashy in this regard and attracts the eyes of the not-so-trustworthy crowd. It’s also harder to stash and keep out of sight unless you carry a bag as well. Winner: Phone