![]() The file is saved in whatever folder or directory to which the command prompt is pointing. This command creates a battery report in the form of an HTML file. To do this, open a command prompt and type powercfg /batteryreport. You can generate a battery report with an array of details. It can also help if you need to replace the battery and want to make sure you get the same type. This information can be helpful if your laptop is getting older and the battery doesn’t have as much pep as it once did. Let’s say you’d like to know more about your battery charge, capacity, and history. ![]() You can also enable the Battery Saver option, which lowers screen brightness and changes other factors to try to preserve the battery charge if it falls below a certain point ( Figure B). At the Settings window, you can tweak certain features that affect your battery life, such as screen brightness. In many cases, you can also adjust the Power Mode settings from here to strike a balance between best performance and best battery life ( Figure A).įrom there, you can further view and adjust your battery options by clicking on the link for Battery settings. Click on the battery icon on the Taskbar, and a notification should show you the percentage of remaining charge available as well as the number of hours and minutes until the charge runs out. SEE: Windows 10 power tips: Secret shortcuts to your favorite settings (TechRepublic Premium)įirst, you can easily check on your battery’s current charge. Let’s check out how to generate a battery report in Windows. Using the command-line tool powercfg, you can generate a report with the battery name, manufacturer, serial number, chemistry, cycle count, and usage history. But you can also find greater details on your battery charge and battery history. Windows offers you a quick view of your battery status in the Taskbar so you can see how much percentage and how much time are left on your current charge. For more info, visit our Terms of Use page. This may influence how and where their products appear on our site, but vendors cannot pay to influence the content of our reviews. We may be compensated by vendors who appear on this page through methods such as affiliate links or sponsored partnerships. Learn how to dig up lots of data on your battery with a handy command built into Windows. ![]() Older batteries use less sophisticated circuitry and might be less accurate.How to check your battery status and history in Windows Newer, "smart" batteries are equipped with circuitry that calculates the measurements of charge remaining and reports the information to the battery meter. This can vary the estimate of how much battery charge remains.īattery hardware and sensor circuitry. Because some activities drain the battery faster than others (for example, watching a DVD consumes more power than reading and writing e‑mail), alternating between activities that have significantly different power requirements changes the rate at which your laptop uses battery power. Most of these factors fall into the following two categories: The accuracy of what the battery meter reports-what percentage of a full charge remains and how long you can use your laptop before you must plug it in-depends on several factors. The windows help documentation on the "battery meter" seems to indicate that it should display a time remaining indicator, is this accurate? Only really ever show a percentage remaining number as pictured. ![]() The system tray power meter never shows the time remaining in the system tray. Running Microsoft Windows 7 Home Premium on a HP Laptop. ![]()
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