Compaq 1262, 1275, 1266 Increasing Battery Pack Operating Time, Conditioning a Battery Pack

Page 96

Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Battery Pack Operating Time

This appendix covers the following information concerning battery pack operating time:

●Increasing battery pack operating time

●Conditioning a battery pack

●Disposing of a used battery pack

Increasing Battery Pack Operating Time

Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:

●Power management settings

●Hardware configuration

●Software applications

●Installed options

●Display brightness

●Hard drive usage

●Changes in operating temperature

●Type and number of installed PC Cards

NOTE: The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very rapidly.

Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.

Minimizing the Energy Required

To minimize the energy required by the computer, follow these steps:

1.Set the power conservation levels in the Power Management utility to Maximum.

2.Customize the timeout value to work more efficiently with the applications. The amount of battery life depends on the values selected.

Maximizing the Energy Stored

To maximize the energy stored in the battery pack, follow these guidelines:

●Condition the battery pack at least every 30 days to improve overall battery performance.

●Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant trickle charge.

●Store the battery pack in a cool, dry place when not in use.

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Conditioning a Battery Pack

CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a battery pack.

To condition a battery pack, complete the following steps:

1.Plug in the AC adapter and allow the battery to charge until the LED light on the display stops blinking. Your battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. Do not unplug the AC adapter until the arrow disappears.

2.Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns itself off. Do not plug in the AC adapter during this process or you will need to restart with Step No. 1. You may use the computer while the battery is draining.

3.Your battery is re-conditioned.

4.Plug in the AC adapter and begin using the computer.

The table below shows the approximate battery pack charge times.

Approximate Battery Charge Time

Computer

On Line

Off Line

NiMH Battery Pack

4.0 hours

2:00 hrs

Li ion Battery Pack

4.5 hours

2:50 hrs

Disposing of a Used Battery Pack

In the interest of safeguarding our environment, Compaq Computer Corporation recommends that nickel metal hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations.

CAUTION: Never attempt to open or service a battery pack. Opening a battery pack not only damages the pack and makes it unusable, but also exposes potentially harmful battery components.

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Contents Before You Begin IndexIndex Symbols PrefaceCompaq Product DescriptionModels & Features Front Panel Components Controls and LightsLeft Side Components Battery Compartment CD Drive CD Drive Eject Button Right Side ComponentsBottom of Unit Rubber feetRear Connectors USB Keyboard/Mouse PortPower Management for Windows Power Management Settings Power Management PropertiesDisplay Properties Sleep Hibernation Mode Time Out DefaultBattery Operating Time Rebooting After a Lockup Servicing Your Computer Full Off Mode Troubleshooting If the problem is intermittent, checkFollow the Preliminary Steps Preliminary Steps Power-On Self Test Post Running PostProbable Cause Recommended ActionClearing the Power-on Password Remove the PalmrestCompaq Diagnostics Perform Computer Checkup TestView System Information Inspect AudioDiagnostic Error Codes Select error codes by number or typeTroubleshooting Without Diagnostics Before Replacing PartsSolving Minor Problems Solving PC Card Problems Solving Power ProblemsContacting Compaq Support Shipping PreparationIllustrated Parts Catalog Place cursor over each device to obtain its part number System UnitBoards BoardsDisplay Assembly Mass Storage Devices NumberMiscellaneous Cables Kit Place cursor over each device for a description of that itemPower Cord Modem CablesDescription FrontPage Save Results ComponentMiscellaneous Hardware and Plastics Kit Miscellaneous Hardware and Plastics KitMiscellaneous Parts Documentation and Software Description Spare Part NumberQuickFind Part Number Suffix Suffix Month Suffix Month Removal and Replacement Procedures Serial Number LocationElectrostatic Discharge Generating StaticService Considerations To service the computer, you need the followingCables and Connectors Removing a Cable from a ZIF ConnectorSelect the desired illustration Plastic PartsZIF Connectors Models 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly Preparing the Computer for DisassemblyRemoving the Battery Pack Battery PackReplacement Procedures Return to RemovalRemoving the Palmrest Cover with Touch Pad Palmrest Cover with Touch PadWhen replacing the palmrest cover, ensure Return to Removal Removing the Heatspreader HeatspreaderTo remove the heatspreader, complete the following steps Removing the Keyboard KeyboardTo remove the keyboard, complete the following steps Removing the Processor ProcessorTo remove the processor, complete the following steps To replace the processor complete the following steps Index Removing the Hard Drive Hard DrivesRemoval Sequence Replacement Procedures Removing the CD Drive CD DriveNext Step To replace the CD drive, reverse the previous procedures Removing the Battery Charger Board Battery Charger BoardWhen replacing the battery charger board, ensure Removing the Modem ModemDisconnect the modem cable from the modem Removing the Display Panel Assembly Display Panel AssemblyIndex Index Index When removing the display panel assembly Return to Removal Removing the Upper CPU Cover Upper CPU CoverRemoving the Speaker Assembly Speaker AssemblyWhen replacing the diskette drive, ensure that Removing the Diskette DriveDiskette Drive To remove the diskette drive, complete the following stepsReplacement Procedures Removing the Fan Assembly Fan AssemblyTo replace the fan assembly, reverse the previous procedure Removing the System Board System BoardRemove three standoffs from the system board Index Remove three screws from the system board To replace the system board, reverse the previous procedures Removing the Memory Module Memory ModuleReplacement Procedures Specifications Physical and EnvironmentalSystem Interrupts System InterruptsHardware System Function System DMA System DMAHardware DMA System Function System Function Shipping Configuration System I/O AddressSystem I/O Address Address Hex System Memory Catalog System Memory CatalogTexas Instruments PCI-1131 Card System board extension for PnPOverall Dimensions Active AreaContrast Ratio BrightnessMemory Expansion System Memory Expansion Board Memory 16-MB32-MB 64-MBBattery Pack Weight EnergyBattery Pack Nickel Metal Hydride NiMH Lithium Ion Environmental RequirementsAverage ms Setting Time ms Diskette Drive Capacity per DisketteDiskette Size Read/Write Number of Drives SupportedHard Drives 24× CD Drive Rotational SpeedTypical Transfer Rate Spin Up time Data Buffer CapacityConnector Pin Assignments Click on a linkBattery Pack Operating Time Increasing Battery Pack Operating TimeConditioning a Battery Pack Disposing of a Used Battery Pack

1256, 1272, 1266, 1260, 1274 specifications

The Compaq series of printers, specifically the models 1273, 1267, 1275, 1262, and 1255, represents a noteworthy chapter in the realm of commercial printing technology from the 1990s. Each model was designed to cater to various user needs, ranging from high-quality document printing to efficient office use.

The Compaq 1273 is characterized by its robust performance aimed at small to medium businesses. This model is equipped with high-resolution printing capabilities which allows for sharp and vibrant output, making it ideal for presentations and marketing materials. The 1273 also supports multiple paper sizes, enhancing its versatility for different printing tasks.

Moving on to the Compaq 1267, this model bridges the gap between compact design and high efficiency. It features a user-friendly interface that simplifies the printing process, making it accessible for users with varying tech proficiency. Additionally, the 1267 incorporates a fast print speed, ensuring that tasks are completed quickly without sacrificing quality.

The Compaq 1275 is notable for integrating advanced printing technologies aimed at increasing productivity. This model offers both black-and-white and color printing options, catering to diverse printing needs. Furthermore, the 1275 supports network connectivity, allowing multiple users to share the printer effectively, fostering collaboration within office environments.

The Compaq 1262 places an emphasis on cost-effectiveness, appealing to budget-conscious consumers. It provides essential functionalities without unnecessary features, making it a solid choice for home offices. Despite its lower price point, it still upholds a commendable print quality, ensuring that users do not have to compromise.

Lastly, the Compaq 1255 offers basic printing capabilities that are particularly suited for everyday tasks. It is designed for users who require reliable performance without the bells and whistles of higher-end models. The 1255 is lightweight and compact, making it easy to fit into various spaces, ideal for smaller work areas.

In conclusion, the Compaq series 1273, 1267, 1275, 1262, and 1255 present a range of features catering to different audiences. Each model encapsulates the brand's commitment to quality, efficiency, and user-friendliness, making them attractive options for various printing needs in the business landscape of the 1990s.
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