system test
Browser Battery Status
Use this to confirm what battery state the browser can see. It does not measure battery health, cycle count or true remaining capacity.
No accountLocal where possibleRetest anytime
Browser & device environment
Ready
DeviceOK reports only information your browser intentionally exposes. It does not fingerprint hidden hardware or claim access to protected system details.
Private by design
Battery state is read locally from the browser API and is not stored by DeviceOK.
Use the result as evidence, not a guess.
This test checks
- Charging state
- Browser-exposed charge level
- Browser-provided time estimates where available
How to read it
A percentage is current charge level, not battery health.
Many browsers intentionally do not expose this API.