Calibrate vista laptop battery

The Battery Health Manager feature opens. Maximize my battery health : Use this setting if the computer stays plugged in to the power adapter most of the time. Let HP manage my battery charging : Use this setting if the computer is operating under a heavy load or being used in hot environments. Charging behavior automatically adjusts to balance between maximizing battery health and maximizing battery duration.

Maximize my battery duration : Use this setting if you need to have the battery fully charged when taking the computer off the charger. Review the frequently asked questions about testing and calibrating the battery. HP provides diagnostic software you can use to test hardware components on your computer. HP PC Hardware Diagnostics for Windows is a Windows -based utility that allows you to run diagnostic tests to determine whether the computer hardware is functioning properly.

The tool runs within the Windows operating system to diagnose hardware failures. To download the latest version, go to the HP Hardware Diagnostics website. Review the following list for more information about the results displayed under either Battery Details or Advanced Information.

Charged or Discharging : Percentage displays how close to a full charge the battery is. Displays Charged when the power cord is plugged into the computer or Discharging when the power cord is disconnected. Primary Battery : Summarizes the test result for the primary battery.

Warranty Type : Describes the warranty of the battery. Cycle count : The number of times the battery can be fully discharged and recharged. In the example, the battery has been charged and discharged 38 times out of Manufacturer : A code that indicates the manufacturer of the battery.

Battery Age : The number of days since the battery was manufactured. Serial Number : The serial number of the battery. Temperature : The temperature of the battery. Design Capacity : Displays the designed charge capacity of the battery. Full Charge Capacity : Displays the capacity of the battery when fully charged.

Remaining Capacity : Displays the remaining charge of the battery in milliampere hours mAh instead of a percentage. Current : The discharge current, represented in milliamperes mA. When the computer uses AC power, Current displays 0 mA. Terminal Voltage : The voltage output from the battery terminals. Design Voltage : Displays the designed voltage of the battery. Cell Voltage : Each battery has up to four cells. Cell Voltage represents the capacity for each individual cell.

If one or more of the Cell Voltage items displays 0mV , the battery contains three or fewer cells. Status : Provides a code indicating additional battery status information for service technicians. AC Power : Displays Yes when the power cord is plugged in, or No when the power cord is disconnected from the computer. CT Number : This number is the identifying number printed on the barcode on the battery.

Secondary Battery : Indicates the presence of another battery. Recommendations for battery use and storage are covered in the HP User Guides for each model. Review this additional information on battery care practices.

Do not disassemble, crush, or puncture a battery; do not short the external contacts on a battery; and do not dispose of a battery in fire or water. Do not leave batteries exposed to high temperatures for extended periods. Prolonged exposure to heat for example, inside a hot car accelerates the deterioration of Li-Ion cells.

Remove the battery if the notebook will be stored turned off and not plugged into AC power for more than 2 weeks. Remove the battery from the notebook if the notebook will be plugged into AC power continuously via an AC adapter or docking station for more than 2 weeks. Use the type of battery with the highest capacity Ah rating if the notebook will run high-end applications on battery power.

Calibrate the battery based on the usage model. Under normal usage, batteries should be calibrated a minimum of once every 3 months; however, a battery that is rarely discharged fully should be calibrated about once a month. Use only the battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased as an accessory. You can manually change the power consumption of your notebook PC and conserve battery power. Reduce the brightness of the screen to the minimum readable level.

Use the fn and f7 or f8 keys to adjust the brightness. Remove peripherals when not in use. Disconnect them when you have finished using them. Reduce the speed of your processor. The faster your computer works, the more quickly it uses up the supply of power. By cutting down on processor speed, you can extend the charge of your battery. Methods to reduce processor speed vary from model to model, and your processor manual should provide instructions for doing so.

Turn off the Wireless On-Off button when it is not in use. If your notebook has one, press the Wireless On-Off button so that the light turns off. Check for programs running in the background. Some programs automatically install a quick-start utility and run in the background when the computer is started. You can decrease the power requirements by periodically searching for and removing unnecessary programs.

If the original battery charges too slowly, but a replacement battery charges as it should, the battery might not be at fault. Before you replace the battery that might be defective or worn out, use the following instructions to determine if the battery needs to be replaced. Click the arrow next to Batteries to expand the battery options. A notebook battery typically lasts between three and five years before replacement becomes necessary.

Run the diagnostic tests provided by HP to help determine when it is time to replace the battery. After a battery reaches the end of its useful life, you have a choice to either replace the notebook or just replace the battery. By replacing the battery instead of the notebook, you prolong the life of the notebook, which reduces both cost of ownership and technology waste. HP recommends purchasing genuine HP replacement batteries through HP dealers and vendors to avoid illegitimate or counterfeit products.

Different notebook models require different batteries. Before ordering a battery, you need to know the product number of your notebook to determine the part number of the replacement battery. To find your product number, use HP Support Assistant or locate the product number on the product label.

HP strongly recommends purchasing genuine HP replacement batteries. HP batteries are manufactured to meet or exceed international industry safety standards and are produced by the same vendors as the original batteries sold with your notebook.

When HP Support Assistant opens, the product name, product number, and serial number of the notebook display. To locate the notebook product number using the product label, turn off the notebook. Turn the notebook over, and then locate the HP product label on the bottom of the notebook. On some models, the product tag might be located inside a battery compartment or behind an access panel. The high energy densities of lithium ion batteries present a potential danger if safety design guidelines and features and production quality control are not strictly adhered to.

The media are full of examples where deficiencies in lithium ion batteries have resulted in thermal events and product safety recalls. In time and with usage batteries lose their capacity. There is nothing that you can do about it, you can only prolong the inevitable.

The only difference that you can make is how long before you need to replace your battery. Each manufacturer rates each battery model with a different number of charge cycles. It will just start degrading and lose its capacity. This may happen even sooner if you do not take care of your battery. Some people call this partial charging. Even the manufacturers recommend to do a calibration every 2 or 3 months.

In some situations users have reported Windows showing a broken battery after a few months of usage. The procedure for calibrating the battery is simple. Even though it sounds simple enough there are a few steps that you need to do before you can start with the calibration process.

This procedure can be carried out on any device running a battery: any laptop with any operating system, tablet, mobile phone etc. The are two types of calibration, automatic one and a manual one. The automatic calibration is done either through the BIOS or some kind of a software that the manufacturer provides. Keep reading to see more details about how to calibrate laptop battery.

After performing laptop battery calibration, you need to reset your power settings back to the original settings , so remember your original power settings. Then, leave it plugged and wait for the battery to cool down. It might take up a few hours to cool down a battery. During this charging process, you can use your laptop, but it is recommended to leave it aside. Now laptop battery calibration has been down, and your laptop will provide a more accurate amount of juice left.

Alternatively, you can do laptop battery calibration by using BIOS. For that, the steps are displayed below:.