What Is Your Battery Status?
See your device's battery level, whether it's charging, and estimated time to full or empty. All data comes from the Battery Status API and never leaves your browser.
This tool reads your device's battery level (0–100%), charging state, and estimated time remaining via the navigator.getBattery() API.
The Battery Status API is supported in Chromium-based browsers (Chrome, Edge, Opera) but has been removed from Firefox and Safari for privacy reasons.
Detecting battery...
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Detected | Battery level and charging state shown | Your browser supports the Battery API. The percentage and time estimates update in real time as conditions change. |
| Limited | Level shown but time estimate is unavailable | Your OS may not report time estimates to the browser. The battery level percentage is still accurate. |
| Not Supported | No battery data available | Your browser does not support the Battery Status API. This feature works in Chrome and Edge on laptops and Android devices. |
Common Issues and How to Fix Them
Battery info shows 'Not Supported'
Firefox and Safari have removed the Battery Status API for privacy. Switch to Chrome or Edge to access this feature.
Time remaining estimate seems inaccurate
The OS calculates time based on current usage. Heavy CPU or screen activity will shorten the actual time. The estimate updates dynamically as usage changes.