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Battery

  • The JedEye contains a 2S - 450 mAh sealed lipo battery.
  • The JedEye should be charged with a dedicated 5V USB charger. It requires no more than 150mA charging current. If no charger is available, the USB port of your computer can be used.
  • The red LED indicates that the charge is in progress. It will turn off when the charge is complete.
  • The blue LED indicates that an adequate power supply is connected.

It is recommended to have the JedEye turned OFF before connecting for a charge.

Note that if the device is ON and connected to a charger, it will not turn off when you select EXIT in the main menu but simply go into Energy Saver mode ( Blinking Battery icon on the screen )

Battery level​

The JedEye shows the battery level on the info screen, as a percentage or a voltage (switch with the usebatterypercent / usebatteryvoltage CLI commands). When the pack gets low you'll see a low-battery warning at about 10%, and at about 5% the device powers itself off automatically so an in-progress survey is saved and closed cleanly before the battery's own protection cuts power. That automatic power-off can be turned on/off from the Battery section of the web Settings page (or the setlowbatteryshutdown CLI command); the warning is unaffected.

Making the gauge match your device (optional)​

Two one-time steps make the reading accurate for your own unit. Connect over USB for both.

  1. Calibrate the voltage — corrects small electrical differences between units. Measure the pack with a multimeter and run calibratebattery 8.23 (whatever your meter reads). It's saved per device and survives a settings reset.

  2. Build the battery curve — teaches the device your pack's discharge shape so the percentage is accurate from full to empty. Do the voltage calibration first, then:

    • Charge the JedEye fully.
    • Run batterylog start.
    • When the screen says "Disconnect the USB cable", unplug it.
    • Leave the device running on battery (it shows a white screen) until it switches itself off when empty.
    • Power it back on — your battery curve is now in use.

    View the stored curve with batterylog dump, clear it with batterylog reset, or plot it on a computer with the battery_table_plot.py helper script. The curve survives a settings reset.

If you skip these, the JedEye still works fine using a sensible built-in curve.