My Apple Watch’s battery drains very fast.

Hi there harumi288,

Your Apple Watch battery life is impacted by its age, as well as the way you use and charge your Apple Watch. To help maximize its performance and get the most out of each charge, we suggest reviewing the following Apple Support resources to get started. They provide information regarding how your Apple Watch works, how its impacted over time, and tips and tricks:

• Apple Watch Battery and Performance - Apple Support
• Check your battery and charge your Apple Watch - Apple Support
• Batteries - Maximizing Performance - Apple

If you still have concerns over your battery life after going through the above Apple Support articles, we recommend getting in touch with Apple Support directly. They will have the tools needed to further investigate what is happening with your battery. You can contact them here: Get Support

Thanks for visiting the Apple Support Communities!

Have a great day.