What should I do if the pen's battery drains too fast?

The pen lasts up to 17 hours on a full charge with continuous use. If battery drains unusually fast:

1. Fully charge the pen (LED turns green, then off).
2. Reset the pen by pressing and holding the power button for 10 seconds.
3. Check the auto-power-off setting — a shorter time conserves battery (Settings → Pen Settings). Default is 6 hours.
4. If the pen has not been used for a long period and was completely discharged, the battery life may be reduced. Charge the pen regularly to maintain battery health.