Test de batterie
Lisez le niveau de batterie et l'état de charge signalés par le navigateur, enregistrez les observations au fil du temps et exportez-les.
Interface de test
Votre navigateur peut demander l'autorisation après avoir appuyé sur Démarrer.| Temps | Niveau (%) | Chargement |
|---|---|---|
| — | ||
Comment utiliser cet outil
- Click Check battery to request the Battery Status API where supported.
- Read the reported level and charging state.
- Start a timed observation to record changes, then stop it.
- Export the observations as CSV or JSON if you want to keep them.
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Explication technique
The Battery Status API exposes level and charging state in browsers that still implement it. It provides an estimate, not a measurement of capacity or health. Many browsers have removed or restricted the API for privacy reasons.
A battery level that drops quickly may reflect workload, temperature, or calibration. This page cannot read cycle count, design capacity, or manufacturer health data.
Dépannage
Battery information is unavailable
Your browser may not support the API. This is a browser limitation, not necessarily a battery fault.
Level does not change
Level is reported in coarse steps and may update slowly. Use the timed observation over a longer period.
Values differ from system settings
Browser reporting and operating-system estimates can differ.
Export does nothing
Allow downloads for this site and try a different browser if the Blob download is blocked.
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Questions fréquemment posées
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