Welcome to a Laptop Battery specialist of the Compaq Laptop Battery
The workstation portfolio of Hewlett Packard is extensive. The offering ranges from 15- to 17-inch models (even a few mobile 14-inch models are included). The two smaller workstations, HP EliteBook 8470w and HP EliteBook 8570w, have proven their worth in past reviews. Now, we take a look at the HP EliteBook 8770w with battery like Compaq Armada M700 Battery
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. The large top model offers a few unique features: the strongest hardware and most extensive configuration options. The large case offers a lot of space and good cooling. Our test model will have to compete with models from HP and other manufacturers. For example, the Dell Precision M6700, the Fujitsu Celsius H920 and Bullman's E-class are very powerful, 17-inch workstations with many appealing features.
The HP EliteBook 8770W offers 12 different configurations. The prices start at 1,650 Euros (~$2,202) and end at 5,000 Euros (~$6,674). The variety of available components is as large as the price span. A multitude of Intel Core i5 and Intel Core i7 processors cover the CPU section. Four different professional graphic cards and three different displays make up the graphics section. Next, the configuration lists a variety of RAM modules and storage devices. The OS is Windows 7 Professional, as Windows 8 is currently only available here and there.
Our test model uses an Intel Core i7-3610QM CPU, an Nvidia Quadro K4000M graphics card, 8 GB RAM, a 750 GB HDD, 24 GB SLC cache module, Windows 7 Professional and the infamous DreamColor display with RGB LEDs. The price lies at 4,300 Euros (~$5,739).
The 75 Wh battery offers standard capacity for a business notebook. However, this will not suffice for the power-hungry workstation and results in short runtimes. The battery life would have been far shorter had the performance not been reduced on battery mode. Theoretically, a max of 3 hours and a minimum of 30 minutes would be possible.
The actual results reached by Battery Eater Reader's test ("Power Saver" profile), minimum brightness, modules off) are 4 hours and the Battery Eater Classic test ("High Performance" mode, max brightness, everything on) records 1:30 hours. The realistic WLAN test (159 cd/m², "Power Saver" profile, wireless modules on) and DVD playback test (max brightness, wireless modules off, "Power Saver" profile) record around 2 hours of battery use.
The battery life can be extended a little, by purchasing a stronger 83 or 100 Wh battery from HP. Together with the standard battery this will extend the run time to 4 - 5 hours.