OK I have been contemplating this press release I received a while ago and I am wondering what constitutes 24hrs of battery life of the HP laptop with the longest battery life of 24hrs and what the profiles are. Granted there has been a lot of tweaking going on by manufacturers to squeeze out extra battery life out of laptops, right?!. Don just got a new Toshiba Tablet PC at work and was amazed that the laptop had a long battery life and performed well even at the Power Saver level. I too was amazed at how well the HDX Dragon did in battery and usage tests (granted it was only 3hrs, but it also had a 20 inch display and some pretty powerful hardware that goes to sleep as it should. So I don't disbelieve this claim by HP, but would like to see it for myself in a real world setting.
Today I got to talk to an HP Product manager on how they were able to achieve this.
HP had announced an unprecedented milestone in mobile computing: up to 24 hours of continuous notebook operation on a single battery charge. As measured by an industry-standard benchmark Mobilemark 2005 for Windows XP, the new HP EliteBook 6930p configured with an optional ultra-capacity battery delivered up to 24 hours of battery runtime.
When ordering your 6930p HP also offer’s the option of having the computer downgraded to Windows XP with an upgrade to Windows Vista Business disc included or it can ship with Windows Vista Business Edition. The timing for battery life running Windows Vista is of course different, not only because it is a more robust OS, there was a different testing software involved that puts the system under more real world scenarios using Mobilemark 2007. Using the same hardware configuration it was able to net 20 hours and 40 minutes using Vista with the modern testing software.
Surprisingly there was no tweaking in Windows Power Management. HP has a set of HP Optimized power settings that optimizes performance and battery life and this what was used and what they recommend.
During the tests both the wireless radios for Bluetooth, WiFi, (and if equipped with 3G radio card) were all off for best case scenario as a mobile user would use to eek out the longest battery life. So if you are using any of these, (which you aren’t supposed to do on any airline) your mileage will vary depending on usage.
The Elitebook 6930p used in the tests did have some hardware not yet available for the buying public, but will be soon. The greatest energy saver was the use of an HP Illumi-Lite LED Display (planned to be available October 2008) that is a $50 option that nets an energy savings of 4 hours additional runtime compared to traditional LCD displays as well as an 80GB X25-M Mainstream SATA Solid-State Drive from Intel, which nets another 4%.
So in order to achieve this 24 hour benchmark HP utilizes a 12 Cell Ultra Capacity Battery and customer download of the latest Intel graphics driver and HP BIOS. Notebook must also be configured with optional Intel 80 GB SSD drive, HP Illumi-Lite LED Display and requires Microsoft Windows® XP operating system. We were told that battery life will vary depending on the product model, configuration, loaded applications, features, and power management settings. The maximum capacity of the battery will decrease with time and usage. The Ultra Capacity Battery can also be charged with a separate AC adapter minimizing charging time before a long trip and it will also be compatible with other laptops in HPs lineup. The battery also has charge level LEDs to let you know when you have topped it off. It is also designed to give a comfortable working angle for the laptop when added to the bottom.
Designed and tested to last, HP batteries benefit from a combination of HP engineering and energy-efficient notebook components such as Intel solid-state hard drives (SSD) and mercury-free LED displays. For example, the highly efficient HP Illumi-Lite LED display boosts battery run time by up to 4 hours compared to traditional LCD displays, while the Intel X25-M and X18-M Mainstream SATA SSDs provides up to a 7 percent increase in battery life compared to traditional hard drives.
So in this day it is entirely possible to get 24 hours out of your laptop today with the right configuration of hardware and software and sets a pretty high benchmark.
Here are some excerpts from the press release you may find interesting:
“All-day computing has been the holy grail of notebook computing,” said Ted Clark, senior vice president and general manager, Notebook Global Business Unit, HP. “With the HP EliteBook 6930p, customers no longer have to worry about their notebook battery running out before their work day is over.”
Use an HP EliteBook 6930p continuously on the world’s longest scheduled commercial airline flight – linking Newark Liberty International Airport and Singapore Changi Airport – approximately 18 hours, 40 minutes.
Inspired by aircraft construction and designed for style-conscious mobile professionals, HP EliteBook notebooks feature the latest mobile technologies.
In October, customers will be able to purchase an HP EliteBook with the new Intel high-performance SSDs – HP is a launch customer for new Intel X25-M and X18-M Mainstream SATA SSDs.
In addition to helping achieve outstanding battery life, these new Intel SSDs provide greater durability and reliability as well as faster system responsiveness. Internal HP benchmarks show overall performance boosts of up to 57 percent on industry benchmarks, and data transfer rates almost six times faster than traditional hard disks.
“Intel architected its new line of high-performance solid-state drives specifically to bring a new level of performance and reliability to the computing platform and make significant impact to the way people use their PCs,” said Randy Wilhelm, vice president and general manager, NAND Products Group, Intel. “The HP milestone is an example of the impact of this new level of performance that specifically delivers on lower power consumption for longer battery life.”
The initial ENERGY STAR®-qualified HP EliteBook 6930p configuration starts at only 4.7 pounds (2.1 kilograms). It features a 14.1-inch diagonal widescreen display and is available with an optional, mercury-free Illumi-Lite LED display.
The HP EliteBook 6930p is built for the corporate road warrior as it features a shock-resistant hard drive, enhanced display panel and spill-resistant keyboard to help defend data against bumps, drops and spills. It was designed to meet the tough MIL-STD 810F military-standard tests(2) that measure levels of environmental reliability and operation at extreme temperatures, while withstanding vibration and high humidity.
The inner magnesium shell of the notebook’s HP DuraCase is equipped with a honeycomb pattern that is thermally bonded to anodized aluminum for a solid construction.
All HP notebooks are designed with the environment in mind, with energy-efficient features and select materials for easier recycling. For example, HP has set a goal to remove all mercury – a material commonly found in notebook screens – from its entire notebook line by the end of 2010.