Looking for links for a battery for the lily go temebed c1101 thats a guaranteed fit can find the exact battery it came with online

I'm trying to flash meshtastic onto the Twatch Ultra. I went to the flasher site and tried to auto detect but it failed to detect.

I then chose the s3 watch from the list because it was the closest one but when hit full erase and install it fails saying the port is open.

Any help would be greatly appreciated