How long does it take to fully charge? March 27, 2026 21:15 Updated A full charge takes 2–3 hours. The LED stays red while charging and turns green when complete. Related articles Do I need the app open for the pen to work? What do the LED indicator colors mean? How long does the battery last? How does audio recording work without a microphone on the pen? How does XNote convert my handwriting to digital text?