# Laptop battery dying fast? Use powercfg /energy to find the cause in Windows

Your Windows laptop's battery is emptying faster than it should, and Task Manager doesn't point to anything. In that case, the tool to try is powercfg /energy. It watches the system for 60 seconds while the machine is idle. Then it saves an HTML report of errors, warnings and information about your

| Fact | Value |
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| Published | 26 September 2026 |

Source: https://egamers.io/laptop-battery-dying-fast-use-powercfg-energy-to-find-the-cause-in-windows/