WINDOWS TOOLS · ENGLISH
Windows tools and practical checks
Understand the numbers your PC reports, then choose the next useful check.
Start with your laptop battery. Compare its reported capacity, understand what that percentage can and cannot tell you, and separate capacity loss from charging limits or heavy power use.
Battery capacity calculator
Find the battery report in Windows 11, enter design and full charge capacity, and calculate their ratio. Includes next steps for missing values, results above 100%, a laptop that stops charging early, and fast battery drain.
No report upload. The calculator runs in your browser.
Check battery capacityAbout Daily Tech Issue
Daily Tech Issue is an independent site about practical PC and device problems. The English section starts with one focused Windows tool. Our Korean site covers a different selection of troubleshooting guides.
We link to the official documents behind a procedure and state its limits. AI tools help with research, drafting and code. We do not describe invented measurements or use histories as hands-on tests. Calculator examples are labeled as examples, and a calculation is not a hardware diagnosis.
We are not a manufacturer or an official support service. For model-specific repair, charging controls or warranty decisions, check the device manufacturer’s instructions.
Contact and corrections
Email the site operator at hsr815815@gmail.com. For a correction, include the page URL, the part that seems wrong, and a manufacturer or official documentation link when available.
Do not send passwords, device serial numbers or an unredacted battery report. A general description of the issue is enough to start.
Privacy overview
The battery calculator does not upload a report or send or save the capacity values you enter. Its calculation takes place in your browser.
The website uses visit analytics and includes advertising services. Those services are separate from the calculator and may use cookies or process visit information. Emailing us shares your email address and message with the site operator.
The full privacy policy (Korean) and terms (Korean) describe the site’s current policies. For privacy questions or requests in English, use the contact email above.