Tray-resident, one click away
Click the tray icon to open a clean battery panel — no window switching needed.
A tray-resident battery monitor for wireless peripherals—real-time Bluetooth/USB levels, low-battery alerts, and a bilingual UI.
Key Features
Broad device monitoring
Monitors Bluetooth headsets, mice, keyboards, gamepads, and USB-receiver devices in real time.
Low-battery alerts
Custom low-battery threshold (10%–50%) with timely alerts.
Flexible refresh
Manual refresh plus automatic interval (15s–10min).
Honest battery levels
Detects device type and link; unreadable levels are shown as "--" and never faked as 0%.
Bilingual UI and startup
Simplified Chinese / English UI, follows the system or switches manually. Runs quietly in the background with startup support and minimal footprint.
Screenshots
FAQ
Is my data uploaded anywhere?
No. VoltTray does not collect, transmit, or sell any personal data. All battery information is read locally through system APIs and never leaves your device.
Which devices are supported?
VoltTray supports Bluetooth headsets, mice, keyboards, gamepads, and devices connected via USB receivers, detecting device type and link automatically.
Why does a device show "--"?
Some devices do not report battery data to the system. To avoid misleading you, VoltTray shows "--" for unreadable levels and never fakes them as 0%.
How do I change the low-battery threshold?
Open the battery panel, go to settings, and set the low-battery threshold to any value between 10% and 50%.
Is VoltTray free?
Yes. VoltTray is a free app available from the Microsoft Store, with no ads and no in-app purchases.