Do smart trash cans use a lot of batteries?

This is the single most common complaint we found. Some r/smarthome users report changing AA batteries only once in roughly 10 months, but r/BuyItForLife threads call the sensors annoying battery drains. One EKO owner on r/Costco was advised by the manufacturer not to use rechargeable batteries, which can confuse the sensor electronics. Models with an AC adapter option, like several iTouchless cans, sidestep the issue.