To check the battery level of your pen, short-press the power button: 

• Green means the battery is sufficient and above 10%
• Red means the battery is less than 10%

NOTE: A blinking red LED without a battery check means the battery life is critical and the pen should be charged immediately. 

We recommend that you charge Crayon daily. A full charge can support six hours of constant usage. It takes approximately 30 minutes to fully charge Crayon. 

To charge your Crayon:

1. Open the cap on the top of the pen.
2. Insert the lightning cable.
3. Connect the cable to a power adapter or any computer.
4. The LED will blink green while it is charging. When fully charged, the LED will glow solidly green.

   

NOTE: You cannot use the Crayon while it is charging.

For more information on the status LED, see Crayon LED battery status Indicator.