Lithium-ion batteries are incredibly popular these days. You can find them in laptops, PDAs, cell phones and iPods. They’re so common because, pound for pound, they’re some of the most energetic rechargeable batteries available.

­ Lithium-ion batteries have also been in the news lately. That’s because these batteries have the ability to burst into flames occasionally. It’s not very common — just two or three battery packs per million have a problem — but when it happens, it’s extreme. In some situations, the failure rate can rise, and when that happens you end up with a worldwide battery recall that can cost manufacturers millions of dollars.

So the question is, what makes these batteries so energetic and so popular? How do they burst into flame? And is there anything you can do to prevent the problem or help your batteries last longer? In this article, we’ll answer these questions and more.

Lithium-ion batteries are popular because they have a number of important advantages over competing technologies:

• They’re generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its atomic bonds. This translates into a very high energy density for lithium-ion batteries.Here is a way to get a perspective on the energy density. A typical lithium-ion battery can store 150 watt-hours of electricity in 1 kilogram of battery. A NiMH (nickel-metal hydride) battery pack can store perhaps 100 watt-hours per kilogram, although 60 to 70 watt-hours might be more typical. A lead-acid HP Business notebook 6710b battery can store only 25 watt-hours per kilogram. Using lead-acid technology, it takes 6 kilograms to store the same amount of energy that a 1 kilogram lithium-ion battery can handle. That’s a huge difference. batteries to suit your lifestyple batteries-company.com – your best batteries online shop for HP laptop batteries, Toshiba laptop batteries, Dell laptop batteries, Asus laptop batteries, HP laptop AC adapters and Dell laptop AC adapters, all our notebook batteries and laptop power adapters are 100% satisfation guarantee and 100% brand new with 1 year warranty!
• They hold their charge. A lithium-ion HP Pavilion dv9000 battery pack loses only about 5 percent of its charge per month, compared to a 20 percent loss per month for NiMH batteries.
• They have no memory effect, which means that you do not have to completely discharge them before recharging, as with some other battery chemistries.
• Lithium-ion batteries can handle hundreds of charge/discharge cycles.

That is not to say that lithium-ion batteries are flawless. They have a few disadvantages as well:

• They start degrading as soon as they leave the factory. They will only last two or three years from the date of manufacture whether you use them or not.
• They are extremely sensitive to high temperatures. Heat causes lithium-ion battery packs to degrade much faster than they normally would.
• If you completely discharge a lithium-ion battery, it is ruined.
• A lithium-ion battery pack must have an on-board computer to manage the battery. This makes them even more expensive than they already are.
• There is a small chance that, if a lithium-ion battery pack fails, it will burst into flame.

Many of these characteristics can be understood by looking at the chemistry inside a lithium-ion cell. We’ll look at this next.

Tagcloud: Lithium-ion Laptop Battery, Lithium-ion Batteries, Lithium-ion Battery Knowledge, Acer laptop batteries, HP 441425-001 battery, 484170-001 battery, Toshiba Pa3356u-3bas battery, Toshiba Pa3534u-1brs battery

Read more:

Scientists Home in on Lithium Batteries Safety Flaws

Thanks to The New Structure, batteries charge quickly and retain capacity

Battery Breakthrough Promises Lighter Weight, More Power

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Lithium-ion batteries are incredibly popular these days. You can find them in laptops, PDAs, cell phones and iPods. They’re so common because, pound for pound, they’re some of the most energetic rechargeable batteries available.

­ Lithium-ion batteries have also been in the news lately. That’s because these batteries have the ability to burst into flames occasionally. It’s not very common — just two or three battery packs per million have a problem — but when it happens, it’s extreme. In some situations, the failure rate can rise, and when that happens you end up with a worldwide battery recall that can cost manufacturers millions of dollars.

So the question is, what makes these batteries so energetic and so popular? How do they burst into flame? And is there anything you can do to prevent the problem or help your batteries last longer? In this article, we’ll answer these questions and more.

Lithium-ion batteries are popular because they have a number of important advantages over competing technologies:

• They’re generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its atomic bonds. This translates into a very high energy density for lithium-ion batteries.Here is a way to get a perspective on the energy density. A typical lithium-ion battery can store 150 watt-hours of electricity in 1 kilogram of battery. A NiMH (nickel-metal hydride) battery pack can store perhaps 100 watt-hours per kilogram, although 60 to 70 watt-hours might be more typical. A lead-acid HP Business notebook 6710b battery can store only 25 watt-hours per kilogram. Using lead-acid technology, it takes 6 kilograms to store the same amount of energy that a 1 kilogram lithium-ion battery can handle. That’s a huge difference. batteries to suit your lifestyple batteries-company.com – your best batteries online shop for HP laptop batteries, Toshiba laptop batteries, Dell laptop batteries, Asus laptop batteries, HP laptop AC adapters and Dell laptop AC adapters, all our notebook batteries and laptop power adapters are 100% satisfation guarantee and 100% brand new with 1 year warranty!
• They hold their charge. A lithium-ion HP Pavilion dv9000 battery pack loses only about 5 percent of its charge per month, compared to a 20 percent loss per month for NiMH batteries.
• They have no memory effect, which means that you do not have to completely discharge them before recharging, as with some other battery chemistries.
• Lithium-ion batteries can handle hundreds of charge/discharge cycles.

That is not to say that lithium-ion batteries are flawless. They have a few disadvantages as well:

• They start degrading as soon as they leave the factory. They will only last two or three years from the date of manufacture whether you use them or not.
• They are extremely sensitive to high temperatures. Heat causes lithium-ion battery packs to degrade much faster than they normally would.
• If you completely discharge a lithium-ion battery, it is ruined.
• A lithium-ion battery pack must have an on-board computer to manage the battery. This makes them even more expensive than they already are.
• There is a small chance that, if a lithium-ion battery pack fails, it will burst into flame.

Many of these characteristics can be understood by looking at the chemistry inside a lithium-ion cell. We’ll look at this next.

Tagcloud: Lithium-ion Laptop Battery, Lithium-ion Batteries, Lithium-ion Battery Knowledge, Acer laptop batteries, HP 441425-001 battery, 484170-001 battery, Toshiba Pa3356u-3bas battery, Toshiba Pa3534u-1brs battery

Read more:

Scientists Home in on Lithium Batteries Safety Flaws

Thanks to The New Structure, batteries charge quickly and retain capacity

Battery Breakthrough Promises Lighter Weight, More Power

R Battery concept resurrects old batteries

Top 10 Batteries Usage Tips, Hacks and Tricks

Like!17 [Continue]

“Battery life” means the time your iPad will run before it must be recharged. To maximize the amount of battery usage you get on your iPad 2, you can change certain settings within the device. Here are some tips which will help you to Extend the Battery Life of Your Apple iPad 2.

Don’t forget to Subscribe to our RSS-feed and Follow us on Twitter for recent updates.

Read Also: Top 10 Must Have iPad 2 Apps For New And Existing Users

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1. Adjust brightness: Managing the screen brightness is the best way to extend iPad 2 battery life. By default, your iPad 2 has Auto-Brightness turned On. Auto-Brightness adjusts iPad screen brightness based on ambient lighting conditions; lowering brightness in low light conditions helps to extend battery life. You can adjust brightness yourself; go to Settings > Brightness & Wallpaper and drag the slider to the left to lower the default screen brightness.

2. Manage the use of downloaded applications: Use of certain applications, such as games that prevent the screen from dimming or shutting off or applications that use location services, can reduce battery life.

3. Turn off Wi-Fi: Keeping your WiFi connection enabled drains battery, whether you’re connected to the Internet or not. So, if you’re not connected – and don’t plan to be for a while – you can conserve the iPad’s battery by turning off WiFi. Do this by tapping Settings -> Network -> WiFi -> and moving the slider to “off”.

4. Turn off 3G (Wi-Fi + 3G model): Only some iPad 2 models have a 3G data connection built in, but those that do run down their batteries when using the always-on Internet connection 3G provides. If you don’t need to connect to the web, or need to conserve battery more than you need to connect, turn off 3G. Do this by tapping the Settings app -> General -> Network and then sliding 3G to “off”.

5. Use Airplane Mode (Wi-Fi + 3G model) in low- or no-coverage areas: Because your iPad always tries to maintain a connection with a Wi-Fi network or 3G data network (Wi-Fi + 3G model), it may use more power in low- or no-coverage areas. Turning on Airplane Mode can increase battery life in these situations. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.

6. Minimize use of location services: Another form of wireless communication the iPad employs is location services. This is what powers the GPS functionality of the device. If you don’t need to use that (don’t need to get directions, use a location-aware app like Foursquare, etc.), turn off locations services via Settings -> Location Services and move the slider to “off”.

7. Turn off push notifications: Some applications from the App Store use the Apple Push Notification service to alert you of new data. Applications that rely extensively on push notifications (such as instant messaging applications) may decrease battery life. To disable push notifications, go to Settings > Notifications and set Notifications to Off. Note that this does not prevent new data from being received when the application is opened. Also, the Notifications setting will not be visible if you do not have any applications installed that support push notifications.

8. Fetch new data less frequently: AIf you’re not using data push and want to get email, you’ll need to tell the iPad how often it should check your email accounts. The less frequently you check, the battery it will be for your HP NC6000 Battery. Update these settings at Settings -> Mail, Contacts, Calendars -> Fetch New Data, and change the settings just below the Push menu.

9. Turn off push mail: If you have a push mail account such as Yahoo!, MobileMe, or Microsoft Exchange, turn off push when you don’t need it. Go to Settings > Mail, Contacts, Calendars > Fetch New Data and set Push to Off. Messages sent to your push email accounts will now be received on your phone based on the global Fetch setting rather than as they arrive. If the global Fetch setting is set to Manually, you will not be able to locate your iPad using the MobileMe Find My iPad feature.

10. Auto-check fewer email accounts: You can save power by checking fewer email accounts. This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.

11. Auto-Lock Sooner: You can determine how quickly the iPad’s screen should lock when it hasn’t been in use. The shorter the time before it locks, the less battery you’ll use. To change this setting, go to Settings -> General -> Auto-Lock and choose your interval.

Full Tags: extend battery life tips, Apple laptop batteries, iPad 2, extend iPad 2 battery tips, discount Laptop Batteries, Dell latitude D630 Laptop Battery, Toshiba PA3356U-3BAS Battery

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“Battery life” means the time your iPad will run before it must be recharged. To maximize the amount of battery usage you get on your iPad 2, you can change certain settings within the device. Here are some tips which will help you to Extend the Battery Life of Your Apple iPad 2.

Don’t forget to Subscribe to our RSS-feed and Follow us on Twitter for recent updates.

Read Also: Top 10 Must Have iPad 2 Apps For New And Existing Users

Top 30 Best iPad 2 Apps and Games

Top 10 iPhone & Android apps that changed the world

1. Adjust brightness: Managing the screen brightness is the best way to extend iPad 2 battery life. By default, your iPad 2 has Auto-Brightness turned On. Auto-Brightness adjusts iPad screen brightness based on ambient lighting conditions; lowering brightness in low light conditions helps to extend battery life. You can adjust brightness yourself; go to Settings > Brightness & Wallpaper and drag the slider to the left to lower the default screen brightness.

2. Manage the use of downloaded applications: Use of certain applications, such as games that prevent the screen from dimming or shutting off or applications that use location services, can reduce battery life.

3. Turn off Wi-Fi: Keeping your WiFi connection enabled drains battery, whether you’re connected to the Internet or not. So, if you’re not connected – and don’t plan to be for a while – you can conserve the iPad’s battery by turning off WiFi. Do this by tapping Settings -> Network -> WiFi -> and moving the slider to “off”.

4. Turn off 3G (Wi-Fi + 3G model): Only some iPad 2 models have a 3G data connection built in, but those that do run down their batteries when using the always-on Internet connection 3G provides. If you don’t need to connect to the web, or need to conserve battery more than you need to connect, turn off 3G. Do this by tapping the Settings app -> General -> Network and then sliding 3G to “off”.

5. Use Airplane Mode (Wi-Fi + 3G model) in low- or no-coverage areas: Because your iPad always tries to maintain a connection with a Wi-Fi network or 3G data network (Wi-Fi + 3G model), it may use more power in low- or no-coverage areas. Turning on Airplane Mode can increase battery life in these situations. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.

6. Minimize use of location services: Another form of wireless communication the iPad employs is location services. This is what powers the GPS functionality of the device. If you don’t need to use that (don’t need to get directions, use a location-aware app like Foursquare, etc.), turn off locations services via Settings -> Location Services and move the slider to “off”.

7. Turn off push notifications: Some applications from the App Store use the Apple Push Notification service to alert you of new data. Applications that rely extensively on push notifications (such as instant messaging applications) may decrease battery life. To disable push notifications, go to Settings > Notifications and set Notifications to Off. Note that this does not prevent new data from being received when the application is opened. Also, the Notifications setting will not be visible if you do not have any applications installed that support push notifications.

8. Fetch new data less frequently: AIf you’re not using data push and want to get email, you’ll need to tell the iPad how often it should check your email accounts. The less frequently you check, the battery it will be for your HP NC6000 Battery. Update these settings at Settings -> Mail, Contacts, Calendars -> Fetch New Data, and change the settings just below the Push menu.

9. Turn off push mail: If you have a push mail account such as Yahoo!, MobileMe, or Microsoft Exchange, turn off push when you don’t need it. Go to Settings > Mail, Contacts, Calendars > Fetch New Data and set Push to Off. Messages sent to your push email accounts will now be received on your phone based on the global Fetch setting rather than as they arrive. If the global Fetch setting is set to Manually, you will not be able to locate your iPad using the MobileMe Find My iPad feature.

10. Auto-check fewer email accounts: You can save power by checking fewer email accounts. This can be accomplished by turning off an email account or by deleting it. To turn off an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and set Account to Off. To remove an account, go to Settings > Mail, Contacts, Calendars, choose an email account, and tap Delete Account.

11. Auto-Lock Sooner: You can determine how quickly the iPad’s screen should lock when it hasn’t been in use. The shorter the time before it locks, the less battery you’ll use. To change this setting, go to Settings -> General -> Auto-Lock and choose your interval.

Full Tags: extend battery life tips, Apple laptop batteries, iPad 2, extend iPad 2 battery tips, discount Laptop Batteries, Dell latitude D630 Laptop Battery, Toshiba PA3356U-3BAS Battery

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A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that uses a mechanical mirror system and pentaprism to direct light from the lens to an optical viewfinder on the back of the camera.
Professional dSLR cameras are fundamental for serious photographers. From top-of-the-line resolution to fully customizable settings, professional dSLRs combine functions and performance to create professional quality photos with every shot.

10. Canon EOS 50D

• Resolution 14.6 MP
• Continuous Shooting Speed 6.5 fps
• Battery Life 620 shots
• LCD Screen Size 3 in.
• Warranty 1 year
• Focal Length 18mm – 55 mm
• Max Shutter Speed 1/8000 sec
• Memory CF.

9. Olympus E-30

• New 12MP LiveMOS sensor (E-3: 10.1 MP)
• Brighter and larger LCD screen
• E-30 has a mode dial
• Art Filters, multiple exposures, aspect ratio options and lots of scene modes
• No card door lock, no eyepiece shutter
• Glass fiber reinforced plastic vs weatherproof magnesium alloy body shell
• Slightly (8mm) shorter and around 115g lighter
• Slightly smaller viewfinder with reduced frame coverage
• AF fine tuning for up to 20 lenses (and per AF point!)
• Built-in digital level guage
• Contrast detect (Imager) AF with face detection
• Slightly reduced raw buffer size (12 frames)
• Adds vertical panning mode to stabilizer (IS3

8. Pentax K-7

• 14.6 MP
• 720p/1536 x 1024 HD video recording
• Smaller magnesium/steel alloy body
• Revised viewfinder (less magnified but with greater coverage)
• Updated sensor with four-channel readout
• 3.0″ VGA (920,000 dot) LCD
• New shutter mechanism with 1/8000th shutter speed
• Faster continuous shooting (up to 5.2 fps)
• 77 segment exposure metering sensor
• Revised autofocus algorithms
• AF illumination lamp
• New dust removal system
• HDMI output
• New dedicated ISO button
• Distortion and chromatic aberration correction for DA and DFA lenses (also available in RAW conversion using supplied software)
• Adjustable dynamic range highlight and shadow correction
• Three-shot in-camera HDR capture
• Electronic level indicator
• Composition adjustment (Uses the SR system to reposition the sensor to fine-tune composition)

7. Olympus E-3

• New sensor (10MP Live MOS vs 5MP CCD) and latest TruPic III processor
• Live view
• Sensor-shift image stabilization
• All-new autofocus system (11-point AF, claimed to be world’s fastest with certain zoom lenses)
• Faster continuous shooting, bigger buffer
• Higher top shutter speed (1/8000 sec) and higher flash sync speed (1/250 sec)
• Improved viewfinder (bigger, brighter)
• Bigger, higher resolution vari angle screen
• Masses more customization options

Top 10 Web Apps We Love

Top 5 best Digital Cameras in 2011

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Top 10 Must Have iPad 2 Apps For New And Existing Users

Top 10 cheap Android mobile phones

Top 10 Laptop Battery Usage Tips, Hacks and Tricks

Top 10 iPhone & Android apps that changed the world

A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that uses a mechanical mirror system and pentaprism to direct light from the lens to an optical viewfinder on the back of the camera.
Professional dSLR cameras are fundamental for serious photographers. From top-of-the-line resolution to fully customizable settings, professional dSLRs combine functions and performance to create professional quality photos with every shot.

10. Canon EOS 50D

• Resolution 14.6 MP
• Continuous Shooting Speed 6.5 fps
• Battery Life 620 shots
• LCD Screen Size 3 in.
• Warranty 1 year
• Focal Length 18mm – 55 mm
• Max Shutter Speed 1/8000 sec
• Memory CF.

9. Olympus E-30

• New 12MP LiveMOS sensor (E-3: 10.1 MP)
• Brighter and larger LCD screen
• E-30 has a mode dial
• Art Filters, multiple exposures, aspect ratio options and lots of scene modes
• No card door lock, no eyepiece shutter
• Glass fiber reinforced plastic vs weatherproof magnesium alloy body shell
• Slightly (8mm) shorter and around 115g lighter
• Slightly smaller viewfinder with reduced frame coverage
• AF fine tuning for up to 20 lenses (and per AF point!)
• Built-in digital level guage
• Contrast detect (Imager) AF with face detection
• Slightly reduced raw buffer size (12 frames)
• Adds vertical panning mode to stabilizer (IS3

8. Pentax K-7

• 14.6 MP
• 720p/1536 x 1024 HD video recording
• Smaller magnesium/steel alloy body
• Revised viewfinder (less magnified but with greater coverage)
• Updated sensor with four-channel readout
• 3.0″ VGA (920,000 dot) LCD
• New shutter mechanism with 1/8000th shutter speed
• Faster continuous shooting (up to 5.2 fps)
• 77 segment exposure metering sensor
• Revised autofocus algorithms
• AF illumination lamp
• New dust removal system
• HDMI output
• New dedicated ISO button
• Distortion and chromatic aberration correction for DA and DFA lenses (also available in RAW conversion using supplied software)
• Adjustable dynamic range highlight and shadow correction
• Three-shot in-camera HDR capture
• Electronic level indicator
• Composition adjustment (Uses the SR system to reposition the sensor to fine-tune composition)

7. Olympus E-3

• New sensor (10MP Live MOS vs 5MP CCD) and latest TruPic III processor
• Live view
• Sensor-shift image stabilization
• All-new autofocus system (11-point AF, claimed to be world’s fastest with certain zoom lenses)
• Faster continuous shooting, bigger buffer
• Higher top shutter speed (1/8000 sec) and higher flash sync speed (1/250 sec)
• Improved viewfinder (bigger, brighter)
• Bigger, higher resolution vari angle screen
• Masses more customization options

Top 10 Web Apps We Love

Top 5 best Digital Cameras in 2011

Top 10 Smart Phones in 2011

Top 5 Attractive Widgets To Personalize Your Android Phone

Top 10 Must Have iPad 2 Apps For New And Existing Users

Top 10 cheap Android mobile phones

Top 10 Laptop Battery Usage Tips, Hacks and Tricks

Top 10 iPhone & Android apps that changed the world

Like!2 [Continue]