The Dell XPS M1730 is the latest high-end gaming notebook from Dell, replacing the aging M1710. Dell has improved both the outside appearance of this gaming rig and the components inside its glossy shell. One item added to this notebook, a first for any notebook, is the AGEIA PhysX Processing Unit. Packed inside you also get dual 256MB NVIDIA 8700M GTs running in SLI alongside the Intel Core 2 Extreme X7900 processor making this notebook a force to be reckoned with.
This Dell XPS M1730 has the following configuration:
System: Dell XPS M1730 (Smoke Color)
Processor: Intel Core 2 Extreme X7900 (2.8 GHz)
Memory: 2GB @ 667MHz - 2 DIMM Slots (2 x 1GB) (Max Ram 4GB)
Hard Drive: 2x200GB 7200 RPM running RAID 0
Graphics Card: Dual NVIDIA GeForce Go 8700M GT with 512MB total memory
Physics Card: AGEIA PhysX 100M
Screen: 17" WUXGA Truelife (1920 x 1200)
Optical Drive: 8x CD/DVD burner (DVD+/-RW/+R) with Dual-Layer
OS: Windows Vista Home Premium
Wireless Card: Intel 4965 (802.11b/g/n)
Battery: 9-cell lithium ion recharegable dell xps m1730 battery
Ports / Slots: 5-in-1 Memory Card Reader, DVI-D, S-Video, IEEE 1394 (Firewire), 4 USB 2.0, Express Card slot, Modem, Ethernet/LAN, Microphone in, 2 Headphone out
Dell XPS M1730 Laptop Battery and Power
Xps M1730 Battery life is not one of the key shopping points on many gaming notebooks. Fully charged, when unplugged from the wall the XPS M1730 reported 1 hour and 27 minutes of laptop battery life remaining sitting idle on the desktop. In this type of setting it acts more like a UPS, protecting against power outages or brownouts.
The power adapter is equally as amusing for a portable device, being as large as some ultra portable notebooks themselves. This of course is needed to feed the power demands that a notebook with dual video cards, dual hard drives, and a super fast processor require.
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Review Dell XPS M1330
Replacement Laptop Battery for Dell Inspiron 6400
HP DV6000 Battery Charging Problems and Solutions
Maintaining and Calibrating a Laptop Battery Pack
Overview IBM ThinkPad R51 Notebook
Jun 16, 2009
Jun 10, 2009
Review Dell XPS M1330
If any single notebook can bring Dell out of its recent slump, the XPS M1330 is it. This portable's combination of light weight, stylish design, powerful performance, and built-in mobile broadband makes it a top choice for business travelers and hipsters alike (view photo gallery). Add in a stellar screen and keyboard and long dell battery life, and you have one of the top contenders for notebook of the year.
The M1330's soft-touch, crimson exterior is a new look for Dell, but the round logo on the lid is reminiscent of the one on the XPS M1210, this system's predecessor. Only 4.8 pounds (or as light as 4 pounds, depending on the dell xps m1330 battery), our configuration came with a built-in webcam, nine-cell battery, and travel remote. Although the VGA webcam no longer swivels as it did on the M1210, this one comes with tons of capabilities via software, including pan and zoom, face tracking, and special effects. All the webcam features worked reasonably well, and the picture was bright and clear, albeit washed out.
Along the right side you'll find an ExpressCard slot (with a mini remote control inside), a slot-loading DVD+/-RW drive, a Wi-Fi Catcher, and one USB 2.0 port. The left side houses another USB port, along with FireWire, VGA, Ethernet, and HDMI ports. An 8-in-1 memory card reader, dual headphones jacks, and a microphone jack grace the front.
We're big fans of the multimedia buttons along the top of the keyboard deck, although in general we'd prefer real buttons to touch-sensitive ones. Nonetheless, the Eject, Rewind, Stop, Play/Pause, Fast-Forward, Mute, and Volume buttons all worked well for us. You'll also find a Media Direct button for accessing your content without booting into Windows. The full-sized keyboard has a light, bouncy feel, which made touch typing a pleasure. The track pad and mouse buttons were both responsive, and we like the horizontal and vertical scrolling function on the track pad. A fingerprint reader sits off to the right.
Even with its slick external design, the display steals the show. The epic battles in our 300 DVD looked sharp and spectacular on the 13.3-inch, 1280 x 800-pixel widescreen. Colors were vivid, thanks to Dell's backlit WLED display. This panel is a welcome upgrade to the 12.1-inch screen on the XPS M1210.
---------------------------------------------
Cheapest Dell XPS M1210 Battery Pack online
Battery Type : Li-ion dell laptop batteries
Capacity : 7200mAh
Volt : 10.8V
Color : Black
Dimension :205*58*26mm
----------------------------------------------
We found the notebook's speakers plenty loud but the bass weak, especially at the top volumes. Dell bundles noise-isolating earbuds, which sounded spectacular for both movies and music. We'd like to see some visual feedback when adjusting volume with the media buttons and the remote, but beyond that, watching movies or listening to music on a plane will be a blast with this screen and earbud combo.
Like its predecessor, the XPS M1330 packs a lot of power into a compact frame. Intel's 2-GHz Next Generation Core 2 Duo processor, along with 2GB of RAM, paced this system to a very strong PCMark05 score of 4,545; that's about 1,000 points higher than average for a thin-and-light system. Regular productivity tasks were speedy as well, even with several windows open, and the M1330 handled Vista's Aero interface with ease.
This notebook pumps out plenty of eye candy, at least for casual gamers. Thanks to Nvidia's GeForce 8400M GS graphics card with 128MB video memory, the M1330 turned in a way-above-average 3DMark03 score of 5,196. The M1330 garnered decent F.E.A.R. scores of 56 and 15 frames per second on autodetect and maximum settings, respectively. Having an HDMI output on board means you'll be able to output video and audio to a larger screen via a single port, whether you're playing games or watching movies. Too bad Dell doesn't include a Blu-ray or HD-DVD drive option..
Wi-Fi scores were also impressive at 19.1 Mbps and 16.9 Mbps at 15 and 50 feet, respectively. We saw very good speeds with the integrated Verizon Wireless EV-DO Rev. A mobile broadband connection. We uploaded a 991K image file to our FTP site in 38 seconds (208 Kbps) and downloaded it in an even faster 11 seconds (720 Kbps). Likewise, we downloaded Firefox (a 5.7MB file) in just 53 seconds. To date, only the Panasonic Toughbook CF-W5 has been faster, at 37 seconds. Other Rev. A. notebooks hover between 1:01 and 1:07. And when surfing the Web on a bus ride to New Jersey from Manhattan, Web pages loaded quickly, with only a little trouble while we were in the Lincoln Tunnel, understandably so.
We saw solid xps m1330 battery life of 2 hours and 24 minutes on our DVD rundown test with a six-cell battery and 3 hours and 47 minutes with the included nine-cell battery, which added $60 to the price of our tested configuration. That's five minutes longer than average for this class, and you should expect about 4.5 to 5 hours of productivity time.
Our system came with Windows Vista Ultimate, but you can save yourself $199 if you go for Home Premium. You also get a trial version of Norton AntiVirus. Dell backs the M1330 with a one-year next-business day, in-home service warranty on parts and labor.
Whether you compute on campus, during your commute, or while flying from coast to coast, the Dell XPS M1330 has the power and multimedia chops you're looking for. It's one of the few no-compromise lightweight notebooks we've seen, and we like this one the best because of its unbeatable combination of performance, portability, and style. Dell is back
Replacement Laptop Battery for Dell Inspiron 6400
HP DV6000 Battery Charging Problems and Solutions
Maintaining and Calibrating a Laptop Battery Pack
Overview IBM ThinkPad R51 Notebook
The M1330's soft-touch, crimson exterior is a new look for Dell, but the round logo on the lid is reminiscent of the one on the XPS M1210, this system's predecessor. Only 4.8 pounds (or as light as 4 pounds, depending on the dell xps m1330 battery), our configuration came with a built-in webcam, nine-cell battery, and travel remote. Although the VGA webcam no longer swivels as it did on the M1210, this one comes with tons of capabilities via software, including pan and zoom, face tracking, and special effects. All the webcam features worked reasonably well, and the picture was bright and clear, albeit washed out.
----------------------------------------------------------------
Cheap Replacement Battery Pack for Dell XPS M1330
49WH 11.1V laptop batteries
Black, 206.2*51.3*26.4mm, 350g
Lithium ion replacement Dell XPS M1330 battery
1 Year Quality, Brand New
------------------------------------------------------
Along the right side you'll find an ExpressCard slot (with a mini remote control inside), a slot-loading DVD+/-RW drive, a Wi-Fi Catcher, and one USB 2.0 port. The left side houses another USB port, along with FireWire, VGA, Ethernet, and HDMI ports. An 8-in-1 memory card reader, dual headphones jacks, and a microphone jack grace the front.
We're big fans of the multimedia buttons along the top of the keyboard deck, although in general we'd prefer real buttons to touch-sensitive ones. Nonetheless, the Eject, Rewind, Stop, Play/Pause, Fast-Forward, Mute, and Volume buttons all worked well for us. You'll also find a Media Direct button for accessing your content without booting into Windows. The full-sized keyboard has a light, bouncy feel, which made touch typing a pleasure. The track pad and mouse buttons were both responsive, and we like the horizontal and vertical scrolling function on the track pad. A fingerprint reader sits off to the right.
Even with its slick external design, the display steals the show. The epic battles in our 300 DVD looked sharp and spectacular on the 13.3-inch, 1280 x 800-pixel widescreen. Colors were vivid, thanks to Dell's backlit WLED display. This panel is a welcome upgrade to the 12.1-inch screen on the XPS M1210.
---------------------------------------------
Cheapest Dell XPS M1210 Battery Pack online
Battery Type : Li-ion dell laptop batteries
Capacity : 7200mAh
Volt : 10.8V
Color : Black
Dimension :205*58*26mm
----------------------------------------------
We found the notebook's speakers plenty loud but the bass weak, especially at the top volumes. Dell bundles noise-isolating earbuds, which sounded spectacular for both movies and music. We'd like to see some visual feedback when adjusting volume with the media buttons and the remote, but beyond that, watching movies or listening to music on a plane will be a blast with this screen and earbud combo.
Like its predecessor, the XPS M1330 packs a lot of power into a compact frame. Intel's 2-GHz Next Generation Core 2 Duo processor, along with 2GB of RAM, paced this system to a very strong PCMark05 score of 4,545; that's about 1,000 points higher than average for a thin-and-light system. Regular productivity tasks were speedy as well, even with several windows open, and the M1330 handled Vista's Aero interface with ease.
This notebook pumps out plenty of eye candy, at least for casual gamers. Thanks to Nvidia's GeForce 8400M GS graphics card with 128MB video memory, the M1330 turned in a way-above-average 3DMark03 score of 5,196. The M1330 garnered decent F.E.A.R. scores of 56 and 15 frames per second on autodetect and maximum settings, respectively. Having an HDMI output on board means you'll be able to output video and audio to a larger screen via a single port, whether you're playing games or watching movies. Too bad Dell doesn't include a Blu-ray or HD-DVD drive option..
Wi-Fi scores were also impressive at 19.1 Mbps and 16.9 Mbps at 15 and 50 feet, respectively. We saw very good speeds with the integrated Verizon Wireless EV-DO Rev. A mobile broadband connection. We uploaded a 991K image file to our FTP site in 38 seconds (208 Kbps) and downloaded it in an even faster 11 seconds (720 Kbps). Likewise, we downloaded Firefox (a 5.7MB file) in just 53 seconds. To date, only the Panasonic Toughbook CF-W5 has been faster, at 37 seconds. Other Rev. A. notebooks hover between 1:01 and 1:07. And when surfing the Web on a bus ride to New Jersey from Manhattan, Web pages loaded quickly, with only a little trouble while we were in the Lincoln Tunnel, understandably so.
We saw solid xps m1330 battery life of 2 hours and 24 minutes on our DVD rundown test with a six-cell battery and 3 hours and 47 minutes with the included nine-cell battery, which added $60 to the price of our tested configuration. That's five minutes longer than average for this class, and you should expect about 4.5 to 5 hours of productivity time.
Our system came with Windows Vista Ultimate, but you can save yourself $199 if you go for Home Premium. You also get a trial version of Norton AntiVirus. Dell backs the M1330 with a one-year next-business day, in-home service warranty on parts and labor.
Whether you compute on campus, during your commute, or while flying from coast to coast, the Dell XPS M1330 has the power and multimedia chops you're looking for. It's one of the few no-compromise lightweight notebooks we've seen, and we like this one the best because of its unbeatable combination of performance, portability, and style. Dell is back
Replacement Laptop Battery for Dell Inspiron 6400
HP DV6000 Battery Charging Problems and Solutions
Maintaining and Calibrating a Laptop Battery Pack
Overview IBM ThinkPad R51 Notebook
Jun 5, 2009
Replacement Laptop Battery for Dell Inspiron 6400
Laptop Battery for Dell Inspiron 6400
Best replacement battery for Dell inspiron 6400. This 9-Cell 7200mAh Dell inspiron 6400 battery replacement for inspiron E1505, inspiron 6400 noteboooks..
Specifications:
Product Type: Replacement dell Battery/Batteries
Cell Type: Li-ion laptop battery
Voltage: 11.1 V
Capacity: 7200mAh.
Color:Black
Battery Care and Use :
1.DO NOT discharge the li-ion inspiron 6400 Battery completely.
2.DO NOT need to remove the dell inspiron 6400 Battery when you use the AC Adapter.
3.DO NOT need charge 12 hours when use the dell 6400 Battery first time .
4.Keep the dell Battery in dry ,cool,clean place .
Package :
1x Replacement Battery for Dell Inspiron 6400
Each Dell laptop battery is tested throughout the manufacturing process to match or outperform the original equipments specifications for form, fit and workmanship.
HP DV6000 Battery Charging Problems and Solutions
Maintaining and Calibrating a Laptop Battery Pack
Overview IBM ThinkPad R51 Notebook
Best replacement battery for Dell inspiron 6400. This 9-Cell 7200mAh Dell inspiron 6400 battery replacement for inspiron E1505, inspiron 6400 noteboooks..
Specifications:
Product Type: Replacement dell Battery/Batteries
Cell Type: Li-ion laptop battery
Voltage: 11.1 V
Capacity: 7200mAh.
Color:Black
Battery Care and Use :
1.DO NOT discharge the li-ion inspiron 6400 Battery completely.
2.DO NOT need to remove the dell inspiron 6400 Battery when you use the AC Adapter.
3.DO NOT need charge 12 hours when use the dell 6400 Battery first time .
4.Keep the dell Battery in dry ,cool,clean place .
Package :
1x Replacement Battery for Dell Inspiron 6400
Each Dell laptop battery is tested throughout the manufacturing process to match or outperform the original equipments specifications for form, fit and workmanship.
HP DV6000 Battery Charging Problems and Solutions
Maintaining and Calibrating a Laptop Battery Pack
Overview IBM ThinkPad R51 Notebook
Jun 4, 2009
HP DV6000 Battery Charging Problems and Solutions
HP PAVILLION DV6000 REPORTS BATTERY NOT CHARGING
Problems :
HP Pavilion DV6000 battery gauge says "6% available (plugged in, not charging)"
I followed these steps:
(1) have AC power adaptor connected and Vista running
(2) remove hp battery
(3) reconnect hp pavilion dv6000 battery pack
now says "6% available (plugged in, charging)"
a few minutes later, it says
"100% available (plugged in, charging)"
then a minute later it says
"6% available (plugged in, charging)"
Solution #1
Two possible problems for this -
1: one side of the DC ground is not conntected to the rest of the system, so no circuit is complete to the charging section.
CHARGING Circuit issue
2: bad power controller chip (MAXIM IC) or zener diode in that circuit, maybe bad
Solution #2
Any one with a HP Pavillion 6000 series, who is having certain tech difficulties should go to HP page and search for extended service warranties to see if your system qualifies. I had an issue with my wireless driver and all I had do was to first turn your system completly OFF, then remove the dv6000 lithium battery, then remove the middle cover (underneath Lap Top) and then remove the wireless card. (You will see it connected to two small cables) remove the cables and the small screws and remove the card and then reinserted the card and close the cover -do remember where the two cables go- . Then turn on your system, -do not put the hp dv6000 battery yet- and go to control panel/ device manager/ look for network adaptor, and see if you see your lan card, once this is done reconnect your pavilion dv6000 battery. If you don't then contact HP they will fix it for free, even if your warranty expire. They will even pick up your postage!.
Solution #3
The correct solution is not buy an HP notebook computer. I have been traveling for work with a computer for almost 20 years now. I have carried a lot of different brands of computers. I have never had a laptop battery last just 1 year UNTIL now. And to add to the insult this computer is one used almost exclusively by my wife who only takes it to her business and home, not in an airplane. So it has been well taken care of. I just called HP - no go on any help from them.
My solution - no more HP computers for my family and I can no longer recommend their brand of laptop. This one will be replaced within the next 12 months.
Informations from : http://www.fixya.com/support/t415689-hp_pavillion_dv6000_reports_battery_not
Problems :
HP Pavilion DV6000 battery gauge says "6% available (plugged in, not charging)"
I followed these steps:
(1) have AC power adaptor connected and Vista running
(2) remove hp battery
(3) reconnect hp pavilion dv6000 battery pack
now says "6% available (plugged in, charging)"
a few minutes later, it says
"100% available (plugged in, charging)"
then a minute later it says
"6% available (plugged in, charging)"
Solution #1
Two possible problems for this -
1: one side of the DC ground is not conntected to the rest of the system, so no circuit is complete to the charging section.
CHARGING Circuit issue
2: bad power controller chip (MAXIM IC) or zener diode in that circuit, maybe bad
Solution #2
Any one with a HP Pavillion 6000 series, who is having certain tech difficulties should go to HP page and search for extended service warranties to see if your system qualifies. I had an issue with my wireless driver and all I had do was to first turn your system completly OFF, then remove the dv6000 lithium battery, then remove the middle cover (underneath Lap Top) and then remove the wireless card. (You will see it connected to two small cables) remove the cables and the small screws and remove the card and then reinserted the card and close the cover -do remember where the two cables go- . Then turn on your system, -do not put the hp dv6000 battery yet- and go to control panel/ device manager/ look for network adaptor, and see if you see your lan card, once this is done reconnect your pavilion dv6000 battery. If you don't then contact HP they will fix it for free, even if your warranty expire. They will even pick up your postage!.
Solution #3
The correct solution is not buy an HP notebook computer. I have been traveling for work with a computer for almost 20 years now. I have carried a lot of different brands of computers. I have never had a laptop battery last just 1 year UNTIL now. And to add to the insult this computer is one used almost exclusively by my wife who only takes it to her business and home, not in an airplane. So it has been well taken care of. I just called HP - no go on any help from them.
My solution - no more HP computers for my family and I can no longer recommend their brand of laptop. This one will be replaced within the next 12 months.
Informations from : http://www.fixya.com/support/t415689-hp_pavillion_dv6000_reports_battery_not
May 28, 2009
Maintaining and Calibrating a Laptop Battery Pack
A few days ago, my laptop battery started to give up on me. The power indicator would flash and create a weird “buzzing” sound while the computer’s plugged into outlet power. Also, it seemed as if the power wasn’t connected at all sometime.
My solution to that? Calibrating the battery. I explored Google and a variety of other sources to calibrate or recondition laptop batteries. To no avail, I stopped my search there and referred to the HP manufacturer’s handbook.
Surprisingly, it offered some really helpful laptop battery calibration and maintenance tips, which I’d like to share with you:
Calibrating a Laptop Battery Pack
When to Calibrate
Even if a battery pack is heavily used, it should not be necessary
to calibrate it more than once a month. It is not necessary to
calibrate a new battery pack before first use. However, make sure
that the battery pack is fully charged,
especially if it is the only
power source.
Calibrate the battery pack under the following conditions:
? When the battery status display seems inaccurate.
? When you observe a significant change in normal battery
run time.
? When the battery pack has not been used for one month
or more.
How to Calibrate
To calibrate a battery pack, you must fully charge, fully
discharge, and then fully recharge the battery pack.
Charging the Battery Pack
Fully charge the battery pack when the notebook is in use. To
charge the battery pack:
1. Insert the battery pack into the notebook.
2. Connect the notebook to external power through an
AC adapter. (The battery light turns on.)
The battery light turns off when the battery pack is fully charged.
Discharging the Battery Pack
Disabling Hibernation
To fully discharge the battery pack, disable Hibernation
temporarily.
To disable Hibernation:
� Select the Power Meter icon on the taskbar or access Power
Options > Hibernate, and clear the Enable Hibernate support
check box.
Discharging the Battery Pack
After the battery light turns off, which indicates that the battery
pack is fully charged, begin discharging the battery pack.
To fully discharge the battery pack:
1. Select the Power Meter icon on the taskbar, or select Start >
Control Panel > Performance and Maintenance > Power
Options > Power Schemes.
2. Write down the 3 settings in the Plugged In column and the
3 settings in the Running on Batteries column, so you can
reset them after calibration.
3. Select the drop-down lists and set all 6 options in both
columns to Never.
4. Select the OK button.
5. Disconnect the notebook from the external power source, but
do not turn off the notebook.
6. Run the notebook on battery power until the battery pack is
fully discharged. The battery light begins to blink when the
battery pack has discharged to a low-battery condition. When
the battery pack is fully discharged, the power/Standby light
turns off and the notebook shuts down.
Recharging the Battery Pack
1. Connect the notebook to external power and keep the
notebook connected until the battery pack is fully recharged
and the battery light turns off.
?You can use the notebook while the battery pack is recharging, but
the battery pack will charge faster if the notebook is turned off.
2. Select the Power Meter icon on the taskbar or select Start >
Control Panel > Performance and Maintenance > Power
Options > Power Schemes.
3. Reenter the 3 settings you wrote down for the 3 options in the
Plugged In column and for the 3 options in the Running on
Batteries column.
4. Select the OK button.
Select Cheapes Laptop Batteries Pack
Dell Battery, Compaq Battery, IBM Battery, HP Battery
Informations from: http://www.eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
My solution to that? Calibrating the battery. I explored Google and a variety of other sources to calibrate or recondition laptop batteries. To no avail, I stopped my search there and referred to the HP manufacturer’s handbook.
Surprisingly, it offered some really helpful laptop battery calibration and maintenance tips, which I’d like to share with you:
Calibrating a Laptop Battery Pack
When to Calibrate
Even if a battery pack is heavily used, it should not be necessary
to calibrate it more than once a month. It is not necessary to
calibrate a new battery pack before first use. However, make sure
that the battery pack is fully charged,
especially if it is the only
power source.
Calibrate the battery pack under the following conditions:
? When the battery status display seems inaccurate.
? When you observe a significant change in normal battery
run time.
? When the battery pack has not been used for one month
or more.
How to Calibrate
To calibrate a battery pack, you must fully charge, fully
discharge, and then fully recharge the battery pack.
Charging the Battery Pack
Fully charge the battery pack when the notebook is in use. To
charge the battery pack:
1. Insert the battery pack into the notebook.
2. Connect the notebook to external power through an
AC adapter. (The battery light turns on.)
The battery light turns off when the battery pack is fully charged.
Discharging the Battery Pack
Disabling Hibernation
To fully discharge the battery pack, disable Hibernation
temporarily.
To disable Hibernation:
� Select the Power Meter icon on the taskbar or access Power
Options > Hibernate, and clear the Enable Hibernate support
check box.
Discharging the Battery Pack
After the battery light turns off, which indicates that the battery
pack is fully charged, begin discharging the battery pack.
To fully discharge the battery pack:
1. Select the Power Meter icon on the taskbar, or select Start >
Control Panel > Performance and Maintenance > Power
Options > Power Schemes.
2. Write down the 3 settings in the Plugged In column and the
3 settings in the Running on Batteries column, so you can
reset them after calibration.
3. Select the drop-down lists and set all 6 options in both
columns to Never.
4. Select the OK button.
5. Disconnect the notebook from the external power source, but
do not turn off the notebook.
6. Run the notebook on battery power until the battery pack is
fully discharged. The battery light begins to blink when the
battery pack has discharged to a low-battery condition. When
the battery pack is fully discharged, the power/Standby light
turns off and the notebook shuts down.
Recharging the Battery Pack
1. Connect the notebook to external power and keep the
notebook connected until the battery pack is fully recharged
and the battery light turns off.
?You can use the notebook while the battery pack is recharging, but
the battery pack will charge faster if the notebook is turned off.
2. Select the Power Meter icon on the taskbar or select Start >
Control Panel > Performance and Maintenance > Power
Options > Power Schemes.
3. Reenter the 3 settings you wrote down for the 3 options in the
Plugged In column and for the 3 options in the Running on
Batteries column.
4. Select the OK button.
Select Cheapes Laptop Batteries Pack
Dell Battery, Compaq Battery, IBM Battery, HP Battery
Informations from: http://www.eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
May 21, 2009
Overview IBM ThinkPad R51 Notebook
The slim, expandable R51 is one great portable.
It doesn't have a hip new wide screen, a six-in-one media card reader, or a built-in DVD burner. But if you're looking for a terrific deal on a mainstream notebook, the IBM ThinkPad R51 delivers. The excellent keyboard, expandable design, long battery life, and 5.5-pound weight add up to one great portable for $1694.
The keyboard features deep-depressing keys in an easy-to-navigate layout. Both pointing devices, touchpad and eraserhead, are included. Each has its own set of mouse buttons, and eraserhead fans get two additional bonuses: a good scrolling button and three swappable caps (we found the smooth soft dome the most comfortable). If your work keeps you in the dark a lot--say, on a plane or in meeting rooms--you'll appreciate the ThinkLight, an LED mounted in the screen frame that softly illuminates the keyboard. Do you find yourself squinting at the screen, even under plenty of light? Launched by the combination keystroke of Fn-Space, the spacebar magnifier zooms the current window to fill the screen. The result is not 100 percent crisp, but it's plenty readable.
Like to keep your upgrade options open? Think you might want more RAM, a bigger hard drive, more connections, or longer ibm battery life down the road? It will cost you, but the R51 offers more choices for expansion than any other notebook we've reviewed in this price range. Our unit had 512MB of RAM installed. You get 256MB built in, leaving you one open memory slot to fill with an additional DIMM up to 1GB for a total of 1.28GB. That's short of the up to 2GB of main memory some expensive notebooks offer, but it should be plenty for most users. You can easily access the socket by removing one screw from a bottom panel. Ditto for the 40GB hard drive, which you can pull out of the right side of the notebook by its cover.
You get expansion possibilities galore with the ibm r51 lithium ion battery and docking options--not that you necessarily need them. The R51's standard battery, a rear detachable unit, turned in excellent performance in our tests, lasting almost 4 hours on one charge. For even longer-lasting independence from an outlet, swap in the extended-life replacement battery ($99), which lasts 30 percent longer, according to IBM (we did not test it). Finally, you can use either the standard or replacement ibm thinkpad r51 battery in combination with a second 3.5-hour battery ($170) in the notebook's right modular bay (you will have to remove the combination drive first). When you aren't using the bay for the optical drive or a ibm laptop battery, you can insert a second hard drive. A release on the side, instead of the bottom, of the notebook lets you pop devices out using one hand.
The Wi-Fi-ready R51 comes with a full set of notebook connections, including a parallel port (but no serial) for legacy fans, two USB 2.0 ports, and FireWire and TV-out ports. But for easier desktop cable management and for expanding your horizons, IBM offers three docking options, ranging from the simple (the $179 ThinkPad Port Replicator II) to the slightly more sophisticated (the $229 ThinkPad Mini-Dock, with its own power adapter and two additional USB ports) to a high-end base that includes an additional modular bay (the $399 ThinkPad Dock II).
The R51 should be fast enough to handle just about any type of application. In our testing it set a WorldBench 5 mark of 67, which is 3 percent faster than the average score for notebooks equipped with Intel's 1.5-GHz/600-MHz Pentium M processor and 512MB of RAM.
Wrapping it all up is the excellent on-screen user manual, in our opinion the best in the industry. Considering this manual's dedicated launch button and step-by-step animated tutorials, it's hard to fault IBM for dropping print documentation.
We have just a couple of minor complaints: The set of mouse buttons provided for the touchpad sit a tad too close to the front of the notebook. We were able to press them most of the time, but occasionally we instead thwacked the edge of the case with our thumbs. And like most ThinkPad notebooks, the R51 is not a music machine, despite a nice set of press-and-hold volume buttons at the top of the keyboard. The sound quality is fine, with no distortion or extreme tinniness, but a bit too low for more than casual listening.
Upshot: Slim, fully featured (including an excellent keyboard), and extremely expandable, the R51 strikes just the right balance for individuals and businesses desiring mainstream features more than bells and whistles. No other $1700 notebook we know of offers so many docking and battery expansion options. You do, however, have to pay extra for business software, starting at $130 for Microsoft Office Basic Edition 2003.
Informations from http://www.pcworld.com/reviews/product/21801/review/thinkpad_r51_notebook.html
It doesn't have a hip new wide screen, a six-in-one media card reader, or a built-in DVD burner. But if you're looking for a terrific deal on a mainstream notebook, the IBM ThinkPad R51 delivers. The excellent keyboard, expandable design, long battery life, and 5.5-pound weight add up to one great portable for $1694.
The keyboard features deep-depressing keys in an easy-to-navigate layout. Both pointing devices, touchpad and eraserhead, are included. Each has its own set of mouse buttons, and eraserhead fans get two additional bonuses: a good scrolling button and three swappable caps (we found the smooth soft dome the most comfortable). If your work keeps you in the dark a lot--say, on a plane or in meeting rooms--you'll appreciate the ThinkLight, an LED mounted in the screen frame that softly illuminates the keyboard. Do you find yourself squinting at the screen, even under plenty of light? Launched by the combination keystroke of Fn-Space, the spacebar magnifier zooms the current window to fill the screen. The result is not 100 percent crisp, but it's plenty readable.
Like to keep your upgrade options open? Think you might want more RAM, a bigger hard drive, more connections, or longer ibm battery life down the road? It will cost you, but the R51 offers more choices for expansion than any other notebook we've reviewed in this price range. Our unit had 512MB of RAM installed. You get 256MB built in, leaving you one open memory slot to fill with an additional DIMM up to 1GB for a total of 1.28GB. That's short of the up to 2GB of main memory some expensive notebooks offer, but it should be plenty for most users. You can easily access the socket by removing one screw from a bottom panel. Ditto for the 40GB hard drive, which you can pull out of the right side of the notebook by its cover.
You get expansion possibilities galore with the ibm r51 lithium ion battery and docking options--not that you necessarily need them. The R51's standard battery, a rear detachable unit, turned in excellent performance in our tests, lasting almost 4 hours on one charge. For even longer-lasting independence from an outlet, swap in the extended-life replacement battery ($99), which lasts 30 percent longer, according to IBM (we did not test it). Finally, you can use either the standard or replacement ibm thinkpad r51 battery in combination with a second 3.5-hour battery ($170) in the notebook's right modular bay (you will have to remove the combination drive first). When you aren't using the bay for the optical drive or a ibm laptop battery, you can insert a second hard drive. A release on the side, instead of the bottom, of the notebook lets you pop devices out using one hand.
The Wi-Fi-ready R51 comes with a full set of notebook connections, including a parallel port (but no serial) for legacy fans, two USB 2.0 ports, and FireWire and TV-out ports. But for easier desktop cable management and for expanding your horizons, IBM offers three docking options, ranging from the simple (the $179 ThinkPad Port Replicator II) to the slightly more sophisticated (the $229 ThinkPad Mini-Dock, with its own power adapter and two additional USB ports) to a high-end base that includes an additional modular bay (the $399 ThinkPad Dock II).
The R51 should be fast enough to handle just about any type of application. In our testing it set a WorldBench 5 mark of 67, which is 3 percent faster than the average score for notebooks equipped with Intel's 1.5-GHz/600-MHz Pentium M processor and 512MB of RAM.
Wrapping it all up is the excellent on-screen user manual, in our opinion the best in the industry. Considering this manual's dedicated launch button and step-by-step animated tutorials, it's hard to fault IBM for dropping print documentation.
We have just a couple of minor complaints: The set of mouse buttons provided for the touchpad sit a tad too close to the front of the notebook. We were able to press them most of the time, but occasionally we instead thwacked the edge of the case with our thumbs. And like most ThinkPad notebooks, the R51 is not a music machine, despite a nice set of press-and-hold volume buttons at the top of the keyboard. The sound quality is fine, with no distortion or extreme tinniness, but a bit too low for more than casual listening.
Upshot: Slim, fully featured (including an excellent keyboard), and extremely expandable, the R51 strikes just the right balance for individuals and businesses desiring mainstream features more than bells and whistles. No other $1700 notebook we know of offers so many docking and battery expansion options. You do, however, have to pay extra for business software, starting at $130 for Microsoft Office Basic Edition 2003.
Informations from http://www.pcworld.com/reviews/product/21801/review/thinkpad_r51_notebook.html
May 20, 2009
What's The Difference Between Laptop and Notebook Computers?
What's The Difference Between Laptop and Notebook Computers?
Most people use the terms notebook and laptop computer interchangably. Once it's not sitting on top of your desk every portable computer instantly becomes a notebook or laptop regardless of its configuration or individual specification. There are, however, some very big differences between notebook and laptop computers and it's important that you're aware of these differences during the buying process.
This article is being written on a laptop computer as a matter of coincidence but let's get to the meat of the article and explain the basic differences that you need to be aware of.
Let's look at the notebook computer first.
The Notebook ComputerA standard notebook has the following features:
1. Ultralight. Less weight is better.
2. 4 - 5 hour notebook battery life.
3. No internal floppy drive.
4. Minimal graphics subsystem.
5. No internal DVD or CD system.
6. 12" - 14" TFT screen.
7. Low profile (thin).
8. Integrated modem and network connection.
9. Smallest possible keyboard that retains functionality.
10. Low power consumption Celeron/Centrino or Sempron style processor
In essence a notebook computer is designed to provide mobile computing that won't break your back yet still offer all the power the mobile users requires for work and some leisure pursuits. This portability normally comes at a price. The level of minituarization involved comes at a cost and high end notebooks can prove to be quite expensive.
The Laptop Computer Now for the laptop computer. Again look at the name. A laptop is designed to sit on your lap and you can therefore expect it to be quite large and loaded down with features and power. The
The standard laptop computer would have some ,if not all, of the following features:
1. 14" - 17" (widescreen) TFT screen.
2. Nvidia GeForce or ATI Radeon graphics subsystem.
3. Internal DVD-ROM or DVD-RW drive
4. Large full featured keyboard.
5. 3 hour+ laptop battery life.
6. Upgradeable.
7. Integrated modem, network, Bluetooth and Wi-Fi capabilities.
8. High quality integrate audio and speaker system.
9. Low power consumption, high performance Intel Centrino style processor.
From reading the above information you'll see that the notebook is the exact opposite of the laptop. Notebooks offer reasonable power and extreme portability. Laptops are designed to be capable of replacing an entire desktop PC if necessary whilst still offering desktop performance in a mobile platform. Hopefully this article has helped clear up the differences between both classes of portable computers. As time and technology moves on the line between laptop and notebook will continue to blur but for right now it's still clearly defined and driven by the demands of the portable computer market.
Most people use the terms notebook and laptop computer interchangably. Once it's not sitting on top of your desk every portable computer instantly becomes a notebook or laptop regardless of its configuration or individual specification. There are, however, some very big differences between notebook and laptop computers and it's important that you're aware of these differences during the buying process.
This article is being written on a laptop computer as a matter of coincidence but let's get to the meat of the article and explain the basic differences that you need to be aware of.
Let's look at the notebook computer first.
The Notebook ComputerA standard notebook has the following features:
1. Ultralight. Less weight is better.
2. 4 - 5 hour notebook battery life.
3. No internal floppy drive.
4. Minimal graphics subsystem.
5. No internal DVD or CD system.
6. 12" - 14" TFT screen.
7. Low profile (thin).
8. Integrated modem and network connection.
9. Smallest possible keyboard that retains functionality.
10. Low power consumption Celeron/Centrino or Sempron style processor
In essence a notebook computer is designed to provide mobile computing that won't break your back yet still offer all the power the mobile users requires for work and some leisure pursuits. This portability normally comes at a price. The level of minituarization involved comes at a cost and high end notebooks can prove to be quite expensive.
The Laptop Computer Now for the laptop computer. Again look at the name. A laptop is designed to sit on your lap and you can therefore expect it to be quite large and loaded down with features and power. The
The standard laptop computer would have some ,if not all, of the following features:
1. 14" - 17" (widescreen) TFT screen.
2. Nvidia GeForce or ATI Radeon graphics subsystem.
3. Internal DVD-ROM or DVD-RW drive
4. Large full featured keyboard.
5. 3 hour+ laptop battery life.
6. Upgradeable.
7. Integrated modem, network, Bluetooth and Wi-Fi capabilities.
8. High quality integrate audio and speaker system.
9. Low power consumption, high performance Intel Centrino style processor.
From reading the above information you'll see that the notebook is the exact opposite of the laptop. Notebooks offer reasonable power and extreme portability. Laptops are designed to be capable of replacing an entire desktop PC if necessary whilst still offering desktop performance in a mobile platform. Hopefully this article has helped clear up the differences between both classes of portable computers. As time and technology moves on the line between laptop and notebook will continue to blur but for right now it's still clearly defined and driven by the demands of the portable computer market.
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