Apple Watch battery failing

Hi SanCheg,

Thank you for contacting Apple Support Communities. Based on what you stated, it seems like the battery is running low on battery quickly. It looks like you have already done some troubleshooting to solve this issue. Even though there is a chance that you've tried these steps already, I would recommend you follow every step and let us know if the issue persists.

"There are a few ways you can preserve battery life on your Apple Watch:

• During running and walking workouts, turn on Power Saving Mode to disable the heart rate sensor. To do this, open the Apple Watch app on iPhone, go to My Watch > Workout, and turn on Power Saving Mode. Note that when the heart rate sensor is off, calorie burn calculations may not be as accurate.
• For longer workouts, you can choose to use a Bluetooth chest strap instead of the built-in heart rate sensor. To pair the Bluetooth chest strap with your watch, make sure the strap is in pairing mode, then open Settings on Apple Watch, select Bluetooth, and choose from the list of Health Devices.
• If you’re very active with your hands and your watch display turns on more than you think it should, you can prevent the display from turning on every time you raise your wrist. Open Settings on Apple Watch, select General, select Wake Screen, and turn Wake Screen on Wrist Raise off. When you want to turn on the display, just tap it or press the Digital Crown.
• Disabling Bluetooth on your iPhone increases the battery drain on your Apple Watch. For more power-efficient communication between the devices, keep Bluetooth enabled on iPhone."

Maximizing Battery Life and Lifespan

Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.

Cheers.