Up to 19 Hours Dell Battery Life

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of the dell laptop battery   First post by: www.itsbattery.com

James Kendrick, over at jkOnTheRun was present at the Dell conference when the announcement over these notebooks was made. He has some interesting thoughts on the Dell's 19-hour claim. He writes: "Based on my calculations the Dell e4200 with a total of 14 cells of battery would likely last about 13 hours, a decent battery life to be sure but a far cry from the 16 hours that Dell is claiming."

Dell has unleashed a plethora of business notebooks today. Highlights for the new range include a bevy of features such as backlit keyboards, external SATA drive connections, DisplayPort capability, and a USB PowerShare connection that allows one to charge mobile devices via USB ports; even when the system is powered down.

That apart, these new Latitudes offer ridiculous battery-life -- up to 19 hours*. Here's a run-down of the highlights of these new models:

Battery life: Some system configurations can get up to 19 hours. Dell claims to have acheived this using a mix of high-capacity batteries such as dell Inspiron E1705 battery, dell Inspiron 6000 battery, dell Latitude CPi battery, dell Latitude CPX battery, Dell Inspiron 3700 battery, Dell Precision M40 battery, dell Latitude D820 battery, dell Inspiron 6400 battery, dell Inspiron E1505 battery, Dell Precision M50 battery, and system and software tweaks.

Connectivity: 802.11n, most are WiMax ready, Ultra-wideband and Bluetooth 2.1, optional GPS.

Security options: smart card and fingerprint readers, hardware-based disk encryption, contactless smart card technology. Also offering Dell's ControlVault solution that centralizes user identity key management and storage.

Colour options: Yay. Mica-Brushed Metal Black, Regatta Blue and Regal Red. Or Black, Blue and Red, for us colour-challenged mortals. Seriously, how do they come up with these names... Oh and the E4200 adds Quartz Pink as an option as well.

Exteriors: These laptops feature full-frame magnesium alloy construction and all-metal hinges.

Dell also shared another feature that we can expect a few months down the line. Termed Dell Latitude ON, Lionel Menchaca at Dell blogs about this feature: "It is an application that gives you access to your e-mail, contacts, calendar, attachments and the Internet without the need to boot into the system's main OS. The Dell Latitude ON mode will enable multi-day battery life since it utilizes a dedicated low-voltage sub-processor and operating system." The feature is expected to appear on the Latitude E4200 and E4300 "in the coming months".

*An aside: It's funny how 19 hours of battery life seems a lot to us. Not long ago, PDAs would run multiple days on a couple of AAs. Today, anything mobile that runs longer than 5 hours on a single charge is heralded as a saviour. Our devices can do so much more that the PDA of old, but battery technology has severely lagged behind. Hopefully, 19 hours on a single charge will become the norm soon.