Apple MacBook Pro features compare

MacBook Pro features compare

As we all know, apple produce the three Macbook Pro notebook : Macbook Pro 13", Macbook Pro 13", Macbook Pro 17". They are named for their LCD screen width, but they are not only differ by LCD screen width but also have their own feartures. Now let me introduce the features of each Macbook Pro notebook. Specially need to know this the Macbook Pro 13" is the newst notebook of Macbook battery series.

Apple 13-inch Macbook features

Precision aluminum unibody enclosure.

Machined from a solid piece of aluminum, the new MacBook not only looks stunning, it's also thinner, lighter, greener, and more powerful than ever. Also we call it Apple Macbook Pro 13".

LED-backlit display

The ultrathin 1280-by-800-pixel LED-backlit display shows off your digital media perfectly. And it's as easy on the environment as it is on the eyes: The gorgeous glass and aluminum enclosure is arsenic- and mercury-free, and LED technology makes it more power efficient.

Advanced NVIDIA integrated graphics

Experience the most powerful MacBook graphics ever. With a new NVIDIA GeForce 9400M processor, the new MacBook delivers up to 5x more graphics performance, so you can immerse yourself in lifelike 3D games with Sony VGP-BPS8 .

All-new, smooth glass Multi-Touch trackpad

Its redesigned with even more room for even more gestures. Now the entire glass trackpad is also the button, so its clickable everywhere.

Apple 15-inch Macbook features

Precision aluminium. The new gold standard
Carved from a single block of aluminium, the new MacBook Pro unibody enclosure is slim and streamlined with a soft-brushed surface and stunning contours.

Brilliant brilliance.

The moment you open your MacBook Pro youre greeted by glorious, full screen brightness. But thats only one gleaming quality of the glossy LED-backlit widescreen display. The picture is brilliant and sharp from corner to corner in VGP-BPS9 .

Graphics in full force

The new MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion.

Even the keyboard is advanced

The Apple Macbook Pro 15" rigid aluminium keyboard webbing has been cut precisely to hold the keys. And the keys are curved to perfectly fit fingers.

Apple 17-inch Macbook features

The longest-lasting Mac notebook battery ever

The Apple Macbook Pro 17 battery in the new 17-inch MacBook Pro lasts up to 8 hours on a single charge1 and can be recharged up to 1000 times2 compared with only 200 to 300 times for typical notebooks. Combined, these advancements offer a dramatic improvement in battery lifespan: more than three times the lifespan of typical notebook batteries up to five years.

2.3 million pixels of perfection

With the high-resolution LED-backlit widescreen display on the 17-inch MacBook Pro, you get desktop-quality colour in an Apple notebook for the first time. The moment you open your MacBook Pro, youre greeted instantly by full, corner-to-corner screen brightness for Sony VGP-BPS9 . The 1920-by-1200-pixel resolution (133 pixels per inch) means you can view more palettes and windows or watch HD video in its native 1920-by-1080 resolution.

Graphics in full force.

The MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion. Use the new NVIDIA GeForce 9400M integrated graphics processor for great everyday performance with up to 8 hours of Sony VGP-BPS8 battery life.

Precision aluminium. The new gold standard.

Carved from a single block of aluminium, the new unibody enclosure is slim and streamlined, making this MacBook Pro the worlds thinnest and lightest 17-inch notebook just 0.98 inch thin and 6.6 pounds. But its not just for looks.

Now we know the Macbook Pro series laptop are Precision aluminium and pretty interface, whats the difference between them?

All the data are from : Apple.com

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Battery Using Tidbit

Battery Using Tidbit

Most battaries that favor a constant charge and recharge capacity work in two different forms. Your standard Ni-Cd or nickel cadmium battery is a slow drain slow charge type battery, a complete drain and recharge is a standard that most of us know.

Not the case with Li-Ion, the lithium Latitude D520 Battery , and newer Metal Hydroxide batteries work better and last longer using the 100-40-100-20-100-40-100-40-100-20% recharge plans. On your initial charge of 100% charging you let the battery drain to 40% and then recharge to 100% and then the second depletion to 20% and back to a full recharge cycle. This helps maintain the battery condition and in some aspects the "Brain" of the Latitude D830 Battery so to speak is set in motion and maintains battery health througout time.

I myself thought the cycle was complete depleation of the battery on each recharge which actually shortens the life of the Sony VGP-BPS5 Sony VGP-BPS5A .(learn something new everyday).

Another item to remember is that when you plug in your laptop, and the indicator says fully charged, the battery is still being used in most cases and recharging. A good note is to remove the battery while in use of a power outlet and set aside until going mobile. This will also help prolong the battery. Hope this helps anyone who may be having to replace Latitude D620 Battery often.

(P.S.) also good for cell phone usage (have had my phone for 4 years with no problems in keeping a full charge of battery life for at least 2 days, havent replaced the battery yet).

The article Via Laptop Battery blog Battery Article Blogspot Quebecblogue

Dell inspiron E1505 battery review

I purchased this laptop 2 months ago with the 1.83 Duo Core porcessor, 1 Gig RAM, 7200 RPM 60 Gig HD, Windows media center and office basic and True life screen. The computer is really quite fast and trouble free thus far. The E1505 Battery or 6400 Battery is a great laptop for the traveling power user. It is not so big that I can't pack it from airport to airport, but is big enough that it is comfortable and easy to use. I have teh 1.86Ghz Core Duo, 2 GB ram, ATI X1400, Blutoot .

At 6 pounds, the Inspiron E1505 Battery will ship with Windows XP Media Center Edition 2005 to dictate the overall multimedia offerings so you can enjoy TV, music, movies, and photos. Both the E1505 and 6400 will come equipped with Intel's latest Dual-Core Duo processors at up to 2.0 GHz. To keep the prices down, these model only come with an integrated graphics solution however we suspect in the future (if demand calls for) there will be a discrete option.

The Dell Inspiron E1505 Battery and Dell Inspiron 6400 Battery are availablw now. Prices start at $929 for the E1505 and $979 for the 6400.

Performance from the 1.6-GHz Intel Core 2 Duo T5500 CPU is good choice for a budget mainstream portable and performed the?very well on?five of the seven tests, with a score of 231 on MobileMark 2005. Battery life, at 4 hours and 51 minutes, is excellent for a mainstream notebook and Latitude D620 Battery . The 128MB ATI Mobility Radeon X1300 graphics engine means you can even play 3D games. The E1505 delivered 85 fps on F.E.A.R., using autodetect settings. Although that was at lower resolution and with some eye-candy turned off, its more than we expected from a notebook in this price class

Basic features for both models:

• Choice of 15.4-inch WXGA, WXGA with TrueLife or WSXGA+ with TrueLife displays
  
• Intel Core Duo and Core Solo processor options (667 MHz, 2 MB cache) at up to 2.0GHz
  
• Up to 2 GB shared(3) 533 MHz DDR2 memory
  
• Intel Integrated GMA 950 graphics
  
• Serial ATA hard drive up to 100 GB 7,200 RPM
  
• Fixed 16X CD-RW/DVD drive or 8X DVD+/-RW dual-layer drive
  
• Internal Intel Pro/Wireless 3945 (802.11a/b/g, 54Mbps) and Dell Wireless or internal Dell 350 Bluetooth options
  
• Ports and slots include four USB 2.0, IEEE 1394, VGA, S-video and ExpressCard
  
• Microsoft Windows XP Home, Media Center Edition 2005, or XP Professional
  
• Six-cell 53 WHr Li-Ion Dell laptop Battery with nine-cell 85WHr Li-Ion upgrade option
  
• Starting weight at 6.18 pounds (2.8kg)

That's the buyer's review : I bought this laptop with a gig of ram, a 80 gig hard drive, an radeon 1400 graphics card, and a 1.86 dual core processor. It works great and i love how you can play dvd's without booting windows. I can play all my games, even the graphics heav...y 3D ones not like my laso notebook Latitude D600 Battery .

I got the e1505 about 2 months ago and so far only managed to really screw it up once. I had to do the system restore (from the restore partition) and it only took about 10 minutes tops to reformat and reload the OS. The Radeon x1400 is very good for... what it is. I don't run real high res in my games so it performs very nicely and still looks good. The display is very sharp and crisp and all text is very legible even for my poor ol' eyes. It's very quick at video rendering for DVD creation and the boot time is very fast (about a minute) due to a very quick HD. My only gripe is all the extra junk Dell feels the need to pile on, and the fact that a factory restore disc is extra (although that seems to be the norm anymore). All in all, it's been a very good replacement for my aging desktop.

This laptop computer fits all my needs. I e-mailed this e-mail for the review on Dell Latitude D520 Battery. I do not know if I will ever want or use a different computer. It is perfact for any job that anyone may have or want.

The 15.4-inch UltraSharp widescreen display delivered strong colors when watching DVDs, even from a variety of angles. The speakers, which are located on either side of the playback controls, produced surprisingly good sound, even though the bass was a bit weak. This configuration has an 80GB hard drive for storing your digital music collection, along with gobs of photos and videos in your Sony VGP-BPS8 or Sony VGP-BPS2C.

The Dell E1505 is commendably quiet -- most of the time.? Even while watching a DVD, the fan remained off.? With a low power integrated video card, only one fan is needed to cool this machine.? The hard drive makes a subdued, but noticeable hum.

Only under heavier tasks does the fan does come on.? It has at least three speeds.? The lowest is very quiet, and more of a pleasing low pitched hum than an annoying whine? Unfortunately, running benchmarks (which can cause sustained full processor usage, something most programs rarely do) will often cause the fan to quickly bypass first and kick into second and then third gear.? It seems that when the fan starts, the CPU continues to warm for a few moments while the cooling begins to take effect on VGP-BPS9 , triggering a higher fan speed that is not really necessary.? After a while it will slow back down and stay there.? If the fan is already running at a lower speed when the benchmark starts, it usually won't speed up.? After 10 minutes of simultaneous 3DMark05 and Super Pi, the fan did go from the lowest to the middle speed.

Inspiron E1505 Battery life with the default 6-cell battery averages around three hours--not great, but not bad for a multimedia portable computer. Dell offers an upgrade to a 9-cell battery for under $100 if you need a lengthier life before recharging.

Its battery is very weak . Some users talk: I paid a premium for the 85Wh battery when I ordered my Inspiron E1505 and I am extremely disappointed that the battery has quit holding a charge after only 18 months...and now I'm looking at nearly $200 to order a replacement? I bought my Inspiron less than two years ago and I am now looking for my third battery. I should have purchased one way before now since I have to stay plugged up to use my laptop. Way too much money for a worst than terrible battery as XPS M1530 Battery.Additional Thoughts I will not buy any more Dell laptops. http://reviews.dell.com/2341/312-0428/reviews.htm. I advice you buy a new laptop battery replacement in http://www.laptops-battery.co.uk

Dell includes a one-year limited warranty on these portable computers, which features at-home service if it's needed. The one-year period has become the de facto standard for most PC vendors these days.



As they ship, the Dell Inspiron E1505 or Inspiron E1705 Battery portable computers offer excellent core power and a good set of components. Gamers will want the graphics upgrade and video editors will want to step up the optical drive, but even if you do both, these portable computers still sell for well under a grand.

The article is from : Laptop battery

Lithium-ion Battery Life and Death

Lithium-ion Battery Life and Death

Lithium-ion laptop battery packs are expensive, so if you want to make yours to last longer, here are some things to keep in mind:

• Lithium ion chemistry Sony pcga bp71 prefers partial discharge to deep discharge, so it's best to avoid taking the battery all the way down to zero. Since lithium-ion chemistry does not have a "memory", you do not harm the battery pack with a partial discharge. If the voltage of a lithium-ion cell drops below a certain level, it's ruined.


• Lithium-ion batteries age as Dell inspiron 6000 battery. They only last two to three years, even if they are sitting on a shelf unused. So do not "avoid using" the battery with the thought that the battery pack will last five years. It won't. Also, if you are buying a new battery pack, you want to make sure it really is new. If it has been sitting on a shelf in the store for a year, it won't last very long. Manufacturing dates are important.


• Avoid heat, which degrades the Toshiba pa3465u-1brsbatteries.



Exploding Batteries




Now that we know how to keep lithium-ion batteries working longer, let's look at why they can explode. Several news reports in the past six months describe laptops with lithium-ion laptop battery that caught on fire.




If the Toshiba pa3107u 1brs battery gets hot enough to ignite the electrolyte, you are going to get a fire. There are video clips and photos on the Web that show just how serious these fires can be. The CBC article,"Summer of the Exploding Laptop," rounds up several of these incidents.




When a fire like this happens, it is usually caused by an internal short in the battery. Recall from the previous section that lithium-ion cells contain a separator sheet that keeps the positive and negative electrodes apart. If that sheet get punctured and the electrodes touch, the battery heats up very quickly. You may have experienced the kind of heat a Toshiba pa3384u 1brs batterycan produce if you have ever put a normal 9-volt battery in your pocket. It a coin shorts across the two terminals, thebattery gets quite hot.




In a separator failure, that same kind of short happens inside the lithium-ion evo n600c battery. Since lithium-ion batteries are so energetic, they get very hot. The heat causes the battery to vent the organic solvent used as an electrolyte, and the heat (or a nearby spark) can light it. Once that happens inside one of the cells, the heat of the fire cascades to the other cells and the whole pack goes up in flames.




It is important to note that fires are very rare. Still, it only takes a couple of fires and a little media coverage to prompt a recall.




The article is from Xanga.com