Yeah he said the batt life depends on how often you forget to turn it off and the color combo. IIRC orange and red use the most power and can last 6 months to a year, maybe more depending on use. I think he said som of the others have lasted 3 years. But batteries are replaceable. On TW we're also putting working with him on options/ideas for a wired version.
On the LED in the OH console, I didnt even consider that thing because it's so weak it might as well not even be there.