Instinct 2X Shuts Down at 18% with Flashlight + Multiband GPS?

Hello fellow Instinct 2X users, I’ve run into critically low power issues where the watch shuts down at around 18% battery while the flashlight is on at full power during an activity with multiband GPS recording. The battery indicator shows low after ~35%, then drains rapidly (e.g., jumping from 18% to 10% in seconds, skipping intermediates).

Is this normal behavior?

It also powered off once at 6% mid-activity with multiband GPS.

Current settings: • Brightness: 5% (after sunset, auto-off after 4s) • Sound & vibration alerts: on • Hourly chime: on • Pulse Ox: 24/7 • Heart rate: 24/7 • GPS activity: ~1hr/day (often forget to press done after saving activities) • Phone connection: always on • Battery saver: never • Flashlight: level 2 occasionally With these, I get 5-6 days per charge normally.