Calibration increases the accuracy of all battery charge displays. The calibration utility supports all battery packs that can be used in the computer. Use the calibration utility both to check the calibration of a battery pack and to calibrate or recalibrate a battery pack. A battery pack cannot be calibrated unless the utility reports that it needs calibration.

The following is a list of important information concerning the calibration of a battery pack:

●A new battery pack can be charged, then used to run the computer before the battery pack is calibrated. However, the amount of charge in the new battery pack cannot be reported accurately until the new battery pack has been calibrated.

●Check the calibration of a used battery pack periodically and whenever battery charge displays seem inaccurate.

●While a battery pack is being calibrated, it is fully charged, then fully discharged.

●A battery calibration icon in the taskbar displays an Up arrow during the charge phase and a Down arrow during the discharge phase.

●A calibration cannot resume if the calibration is stopped or if the computer is shut down during a calibration. An interrupted calibration must be restarted.

●After calibration, a battery pack must be charged before it can be used to run the computer.

●The calibration utility calibrates one battery pack at a time and can run in the background as you use the computer or overnight.

Running a Calibration

CAUTION: To prevent loss of work, ensure that the computer remains connected to AC power throughout a calibration.

To run a calibration of your battery pack, complete the following steps:

●If you are checking the calibration of a battery pack, insert the correct battery pack into the Primary Battery Bay, a DualBay, or a MultiBay.

●Then connect the computer to external power with the AC adapter or dock the computer in a docking base that is connected to external power.

●Access the Battery Calibration tab by selecting Start->Settings-> Control Panel-> Power Management-> Battery Calibration tab.

●View the calibration reports in the Status column. The battery numbers in the Battery column correspond to the following locations:

Battery Number

Battery Pack Location

1

Primary Bay

2

DualBay

3

MultiBay

●In the Status column, select any location number with the “Needs calibration” indication beside it.

●Select the "Start Calibration" button.

Stopping a Calibration

Select the Stop Calibration button on the Battery Calibration tab. The Stop Calibration button is visible only during a calibration.

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Compaq 190 manual Running a Calibration
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190 specifications

The Compaq 190, a significant player in the evolution of portable computing, was unveiled in the early 1990s at a time when the demand for mobility in technology was surging. As a member of Compaq's renowned line of portable PCs, the Compaq 190 was a bridge between desktop power and laptop convenience, offering an impressive array of features and technologies that appealed to both business professionals and technology enthusiasts.

One of the main features of the Compaq 190 was its compact size. Weighing under 10 pounds, it was designed for easy transport, allowing users to work remotely without sacrificing performance. The device was equipped with a 10.4-inch LCD display, providing a balance between portability and screen real estate. This display was notable for its clarity, allowing users to engage with applications effectively, whether in an office setting or on the go.

Under the hood, the Compaq 190 was powered by an Intel CPU, commonly featuring early generations of the Intel 386 processor. This gave the laptop the capability to run various software applications efficiently, making it suitable for word processing, spreadsheets, and basic graphical tasks. Furthermore, the inclusion of a built-in hard drive, typically around 40 MB, provided ample storage for documents and applications of that era.

In terms of connectivity, the Compaq 190 was equipped with standard ports of the time, including serial and parallel ports, allowing users to connect external devices such as printers and modems. The addition of a PCMCIA slot supported expansion, enabling users to enhance functionality with network cards, additional storage, or even modems for internet connectivity.

Battery life was another essential characteristic of the Compaq 190, with options available for extended use. Users could expect several hours of operation away from an electrical outlet, a crucial feature for professionals frequently traveling for work.

Overall, the Compaq 190 represented a pivotal moment in portable computing technology. With its combination of portability, processing power, and essential features, it offered solutions for a generation that valued both functionality and mobility. The legacy of the Compaq 190 continues to influence the design and capabilities of modern laptops, reminding us of the early advancements that paved the way for today’s computing devices.
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