ASUS ZenBook U500V Battery
- 2016年7月1日
- 讀畢需時 9 分鐘
It is normal to get warm when charging or normal use. If it is getting too hot, there may be a problem with the device and qualified personnel should check it.Finding a suitable Acer battery replacement is no longer a challenge, given the wide variety of resources available online. Several online stores provide new and 100% compatible Acer laptop batteries at extremely reasonable prices.For initial use, it is always advisable to discharge the Acer laptop battery to 3% only and then fully charge it (approx 12 hrs).Do not let the battery discharge to 0% initially, as it makes the battery prone to damage/short battery life/not holding the charge issues.Battery once used must be recharged within 2 days without fail with above 50% before using it else it will cause damage/short battery life issues/not holding the charge issues.
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That speed has some downsides. The Spectre’s fan periodically sounded like it was preparing to cool down an office building. A software fix quieted it down a bit, though it still acts up at times. (The MacBook doesn’t have a fan, and suggests closing programs when it gets warm.)
The Spectre also trails behind the MacBook on battery. In my test, which loops a series of websites with brightness set at around 80%, the Spectre ran for 6.5 hours. The MacBook lasted for 8.5 hours, an hour beyond last year’s model. And it pulls that off while driving over a million more display pixels than the HP. In daily use, I found the MacBook still outlasted the Spectre, though both fell short of the 11-hour endurance of the larger MacBook Air and Dell XPS 13. (If battery life concerns you, try using native browsers—Edge on Windows, Safari on Mac.)The Spectre and the MacBook are symbols of computing progress, and good news for people shopping for Windows or Mac hardware. Just look how much the MacBook’s performance and battery life improved in one year.
Still, before you are seduced by thinness, ask yourself how much you value portability over ports, performance and battery life—and how much you’d pay for the compromise. The Spectre starts at $1,170 and the MacBook at $1,300. Meanwhile, for under $1,000, you can buy one of their, uh, huskier counterparts.For years, Apple’s Macintosh computers, while far from the biggest sellers, have been riding high. They’ve managed to outperform a sinking Windows PC market in most quarters, even if modestly. Mac laptops are potent sellers in the lucrative over-$1,000 category. Macs are widely used in colleges and in the media. And one model, the MacBook Air, has been praised by some reviewers as the best laptop ever made.
Windows hardware makers — often stuck in a lower-price, lower-margin, lower-status rut — have long tried, without much success, to challenge the Mac. Now, the new HP Inc. (the PC and printer company spun off from the old Hewlett-Packard last year) is making a serious run at the Mac with a gorgeous new premium model: the 13-inch HP Spectre, which it’s calling the world’s thinnest notebook. It packs a punch.HP isn’t coy about its competition. Its reviewer’s guide, specifically and in detail, calls out comparisons to two Apple laptops: the beloved but venerable MacBook Air; and the new, very thin and light MacBook, which may be more comparable.
I’ve been testing this new HP model, and it will likely be attractive to Windows users who are looking for something thin and light like Macs and who are willing to spend at least the base price of $1,170. But I have a few concerns — notably battery life, the trackpad, and fan noise.Before getting into the details of this newest HP, however, I think it bears noting that both the new Spectre and another much-praised Windows laptop, the Dell XPS 13, eschew the 2-in-1, flip-around, multi-use, gymnastic designs that characterized so many Windows laptops in the wake of the Windows 8 launch, which tried to combine tablets and laptops.
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This new HP doesn’t try to be a tablet. In fact, it doesn’t even have a touchscreen (just like three of the four models of the Dell XPS 13). It’s a super-thin, light, stylish yet capable iteration of the good old clamshell laptop.While I don’t mind touchscreens, and even think they can be useful with Windows 10, I’d rather have a smooth, large trackpad. And several of the largest PC makers, all of which make hybrid machines, have privately told me their research shows that while consumers might buy 2-in-1 devices, they wind up using them as regular laptops, rarely bending them around to be thick tablets. HP still makes 2-in-1 models, but I think it’s notable that, for this premium, flagship laptop, the company chose to produce a thin, regular laptop as possible.
If you’re aiming at Apple’s laptops, this is a good time. The sturdy, three-pound MacBook Air hasn’t seen a really fundamental redesign since 2010, though it has kept up with the latest Intel processors. And the new MacBook, now in its second iteration, is an impressively thin and light 12-inch laptop, but it’s filled with compromises: a single USB-C port, a flat keyboard, a less robust Intel Core M processor, and a high price starting at $1,299 (about $300 more than the Air).
The main design and engineering coup of the HP Spectre is that it’s a bit thinner than the new MacBook (by about 2.7 mm, HP says) and yet packs in full-fledged Core i-series processors and maintains a claimed battery life of up to 9.75 hours — almost as long as the 10 hours claimed by the MacBook. But like the more popular MacBook Air, it sports a 13-inch screen and a keyboard with decent travel that, unlike the one on the MacBook, felt normal to me right away.
The Spectre is a handsome copper and black with a vivid screen and backlit keys. The hinge enclosure is polished and contains small piston-based hinges that make its thin screen feel sturdy and steady. It’s also light, but not world-class light. HP claims it weighs 2.45 pounds, nearly half a pound more than the MacBook and only about half a pound less than the MacBook Air.
The $1,250 Core i7 model I tested, with 8GB of RAM and a 256GB solid-state drive, handled every task I threw at it with speed and ease. Also, unlike the MacBook, it has three USB-C ports, two with Thunderbolt capability (though you’ll still need an adapter, as on the MacBook, to use them as standard USB ports).First of all, the battery life disappointed me. I tested it by cranking the screen to 100 percent, turning off all power-saving measures, leaving on Wi-Fi to collect email and tweets, and then letting Netflix play old West Wing episodes one after the other. The battery lasted a pretty terrible four hours and 35 minutes.
There are a couple of caveats to this. I recognize that most people would keep on the power-saving features and probably turn down the screen a bit. So, in normal use, I’d estimate you’d get around six hours. HP guesses I’d have gotten seven or eight hours in my test if I’d used the Windows 10 Netflix app instead of the website on Microsoft Edge, and turned the screen down 50 percent.But that’s still not a full day of battery life and not the maximum HP claims. And I don’t think everyone is happy to use their laptops at half brightness, even if they don’t use 100 percent.
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Then there’s the trackpad, a notorious problem on Windows PCs when compared to Macs. After spending about 20 minutes setting and calibrating the thing, it still exhibited some jerkiness while scrolling or moving the cursor. But, after awhile, it seemed to heal itself, and I’d now rate it very smooth. But… it’s kind of small, especially for a non-touchscreen Windows 10 machine. Finally, fan noise. The dual fans are part of an ingenious hyperbaric cooling system that allows potent processors to work in a thin enclosure without overheating. When I started testing last week, the fans seemed to blast at the slightest excuse. Then, HP issued a software update, and now the fans behave better. But I’m still startled by sudden fan action once in awhile, even when I’m doing nothing more than web browsing and Slack.
Clearly, controlling the thermals on this thing is a delicate task. And it’s not entirely successful. On a couple of occasions, I noted that the rear hinge enclosure got very hot.The equation has long been: Thinner + lighter = poorer performance + shorter battery life. Both the Spectre and the MacBook, updated in April, still require you to make some sacrifices. But the trade-offs no longer outweigh the benefits of owning a laptop that could double as a cheese knife—if that’s what you want.
It’s why I’ve long felt technology’s thinolympics has been a waste of time. “Our new product is so much thinner than the competition that you can fit one more sheet of paper into your messenger bag! You’ll need to make room for the charger, though, since we cut out some battery. Sorry!”
The equation has long been: Thinner + lighter = poorer performance + shorter battery life. Both the Spectre and the MacBook, updated in April, still require you to make some sacrifices. But the trade-offs no longer outweigh the benefits of owning a laptop that could double as a cheese knife—if that’s what you want.
Ports are to laptops what ice cream is to people. Limit them, and you’ll be shocked by the Before and After shots.Other than the headphone jack, the MacBook has just one USB port—and it’s not even the kind you’re familiar with. The size of a Tic Tac, the USB Type-C port is used to charge the laptop and attach peripherals, including an external display.We’ll get over the limited port situation just like we got over the disappearance of DVD drives. (Remember those?) But in the here and now, there are two issues.
The Spectre 13 is a pretty capable laptop. Our review unit is powered by an Intel Core i7-6500U processor, but the base model has Core i5. Our review model had 8GB of RAM and 256GB of storage, though there is a high-end model with 512GB of storage. In many of our benchmark tests, the Spectre 13 beat out Microsoft's Surface Book and performed ever-so-slightly better than its cousin, the EliteBook Folio G1.
I didn't experience any problems working on the Spectre 13 for hours at a time. Its sustained performance is on par with Microsoft's Surface Book, and with its Intel HD 520 GPU, it bested the Dell XPS on most of our graphics benchmarks as well. While I don't expect most Spectre 13 users to be using the notebook for hardcore gaming, it's certainly up to the task of the occasional Candy Crush session.
Another plus of the Spectre 13 is that it comes with PCIe storage, up to 512GB. HP ditched the SATA SSD III option from the EliteBook Folio G1, which simply gives the Spectre 13 an edge when comparing it the XPS 13 or to any Apple laptop from the past three years.
My bottom line for Windows users is that, as long as you have the money, and figure you can live with seven hours of battery life between charges, this new HP Spectre is worth a look.As a pure hardware device, I don’t like it as well as the MacBook Air, even though it’s somewhat lighter and thinner. The Air has a way bigger trackpad, much better battery life, and the same processors. But at least the Spectre isn’t trying to be something it isn’t — a faux tablet.They’re also aware of the thermal problem. The chassis design will have a mesh grill to aid in heat dissipation, and they’ve already developed modified air cooling on a Magnus EN980 mini PC that employs three radial fans. (This is the system that was powering the demos at Zotac’s Computex booth.) All three of Zotac’s EN980 models sport Nvidia GTX 980 GPUs and quad-core Intel Core i5-6400 (Skylake) CPUs. Zotac told me that the chassis has been modified; instead of a mostly square case, the modified EN980 is flatter and wider to fit better on your back.
Zotac also promised that at launch, its backpack would provide up to two hours of battery life.And what of Gigabyte? A direct competitor to MSI, Gigabyte showed off a laptop/backpack setup back at CES. The company has gone dark on it since; there was no sign of it here at Computex, either. One presumes, then, that Gigabyte has abandoned the project (unless it has gone back to the drawing board such that its original idea was scrapped).To us, the VR backpack concept is one that makes perfect sense at first blush--untethered, high-end VR--but immediately, you bump into ergonomic and technical problems that need to be solved, such as battery life and cooling. Then there’s the realization that you have a full PC on your back, which seems fundamentally odd.
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