Battery Status Checker
Check your device's live battery charge, charging status, time remaining, and a rough drain-rate estimate for this session — using your browser's battery information, on supported Chromium browsers.
Checking for battery information…
Check your battery in 2 steps
On a supported browser, it reads your device's current battery level and charging status automatically — no permission prompt needed.
See your charge percentage, whether you're charging, an estimated time to full or empty, and how fast your battery is draining this session.
What this tool tells you
See your exact battery percentage and charging status without unlocking your phone's status bar or notification panel.
Get a live estimate of how long until your device is fully charged, or roughly how long the current charge will last based on this session's usage.
Watch the drain-rate figure while running something demanding to see how much it's costing your battery, in this session.
Works on any device and browser that exposes battery information, not just phones.
Benefits
- Live charge percentage and charging status, updated automatically as they change.
- Estimated time to full charge or time remaining, from your browser or calculated from this session's drain rate.
- No permission prompt, no app install — reads standard browser battery information.
- Runs entirely in your browser; nothing about your device is uploaded or stored.
More free utilities
Frequently asked questions
Does this show real battery health (wear, cycle count, capacity)?
No — and no website can. Browsers only expose the current charge level and charging status, never battery wear percentage, charge-cycle count or maximum capacity. This tool is honest about that: it shows live charge and a usage-based drain-rate estimate for your current session, not hardware health. For real battery health, check your device's own Settings app (on iPhone: Settings → Battery → Battery Health; on Android: Settings → Battery).
Why does it say my browser isn't supported?
The Battery Status API this relies on is supported in Chrome, Edge, Opera and other Chromium-based browsers (desktop and Android). Safari — including every browser on iPhone and iPad, since they all use Safari's engine — and Firefox have removed or never implemented it, so this page can't read battery data there.
How is the drain-rate estimate calculated?
While your device is unplugged, this tool watches how fast the charge percentage drops during your current visit and works out a rough %-per-hour rate, then estimates how many hours that would take to reach 0%. It resets whenever you plug in and unplug again, and it's only a same-session estimate — actual battery life depends heavily on what you're doing on your device.
Why does the time remaining say 'Calculating…'?
Your browser hasn't reported a time estimate yet, and this tool needs a few minutes of data on battery power to calculate its own drain-rate estimate. Give it a little time, especially right after unplugging.
Is any of my data uploaded or stored?
No. Battery information is read directly by your browser and shown to you locally — nothing is sent to a server or saved after you close the page.
Is this tool free?
Yes, completely free with no sign-up and no app install.
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