warning
Browser Limitation
The Battery Status API is not supported in Firefox or some modern browsers due to privacy concerns. Please use Chrome, Edge, or Opera.
battery_unknown
--%
Unknown
bolt
power
Charging
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schedule
Time Remaining
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health_and_safety
Battery Health
Browser API provides current level, not physical health cycles.
Battery Health Monitor Guide
How It Works
We use the W3C Battery Status API to access your device's power information. This works best on laptops, tablets, and smartphones.
- Level: Shows the current charge percentage.
- Status: Indicates if the device is plugged in or running on battery.
- Time: Estimates time until fully charged (when plugged in) or empty (when unplugged).
Troubleshooting & Privacy
- Not Working? Firefox has removed this API for privacy. Desktop PCs without batteries won't show data.
- Accuracy: Time estimates are provided by your operating system and may fluctuate based on usage.
shield Privacy First
Battery data is viewed locally. No information is stored or sent to any server.