# Windows Powercfg reports reveal battery wear and energy drains

- URL: https://talkfuse.com/story/this-built-in-windows-tool-can-diagnose-your-pcs-battery-health/
- Published: 2026-11-14T20:15:00+00:00
- Updated: 2026-11-14T20:48:24+00:00
- Original publisher: Engadget
- Original article: https://www.engadget.com/2312107/built-in-windows-tool-diagnose-pc-battery-health-powercfg/
- Topics: Gadgets, Technology

## Key points

- Powercfg creates reports on laptop battery health.
- Compare full-charge capacity with design capacity.
- Dell advises replacement below 40 per cent capacity.

## Summary

Windows’ built-in Powercfg utility can help laptop owners check battery condition and identify power-efficiency issues. Its reports can make it easier to spot a battery that may need replacing, especially when a laptop is charging slowly, shutting down unexpectedly or showing signs of a swollen battery.

Run Terminal as an administrator and enter `powercfg /batteryreport` to create an HTML report showing the battery’s design and full-charge capacities. Dell advises replacing a battery when its full-charge capacity falls below 40 per cent of its design capacity. The `powercfg /energy` command takes 60 seconds to check power use and produces a report that can identify apps or devices contributing to drain.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.