Charging station behavior

Hi there, I’m having issues with the use-c based charging station. With two batteries: - sometimes on slot#1 1st led is solid and slot#2 has three solid and one flashing really fast - other times both slot #1 and #2 (with the same batteries) shows a solid 2nd led on I’ve tried different batteries, or swapping around slot one and two. To start with, does anyone have the secret decoder for the usb charger led patterns? I recall it used to be on the ring support site, but I can’t find it now. Also, there’s no option for charging station in the tags anymore (at least, not in this forum)