Hi, @Egyptian1.
Greetings from the Roku Community1
Thanks for reaching us about charging your doorbell. We're here to help.
May we know how long the doorbell will last after it is fully charged? Please be aware that you can connect your doorbell to power using the USB charging cable for 4 hours for a full charge and the battery life is 3-6 months with normal use.
We hope you'll find this information helpful. Let us know if there's anything else we could further assist you.
Thanks,
The Roku Community Team
Reynan L.
Roku Community Moderator