QUESTION

How do you check laptop battery health?

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Asked May 27, 2026
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Answer95% confidence

The quickest way is to use the built-in battery report for your laptop’s system.

Windows

  • Open Command Prompt as admin.
  • Run: powercfg /batteryreport
  • Open the saved HTML report.
  • Compare Design Capacity vs Full Charge Capacity. If the full charge number is much lower, the battery has worn down.

MacBook

  • Go to Apple menu > System Settings > Battery.
  • Check Battery Health or the Info (i) button.
  • Look for Maximum Capacity and the condition, like Normal or Service Recommended.

HP / Dell

  • HP: Restart, press Esc, then F2 for hardware diagnostics and a battery test.
  • Dell: Press F2 at startup for BIOS battery health, or use Dell Power Manager / SupportAssist in Windows.

A lower maximum capacity or a big gap between design and full charge capacity means the battery is aging.