Device & system
Instant when supported · Runs in this browser
Check whether the Battery Status API is available. When supported, display current level, charging state, estimated charging time, and estimated discharging time, and update the values when the browser reports a change.
Reads the live charge information your browser chooses to expose. Values update automatically while this page is open.
No permission prompt is requested.
Browsers do not provide battery health, cycle count, temperature, design capacity, or wear level here. This tool never invents those values.
Transparent method
This tool reports only interactions and browser APIs it can observe. It does not infer hidden hardware specifications or turn unsupported access into made-up results.
Useful context
No. The browser API does not expose cycle count, design capacity, current full-charge capacity, voltage, temperature, or a reliable health percentage.
Many browsers restrict or remove the Battery Status API for privacy and compatibility reasons. Unsupported access does not indicate a battery problem.
Troubleshooting
Keep checking