How long do the batteries last in a sensor trash can?

Manufacturer claims range from 6 to 18 months on alkaline AAs or Ds, and a high-trust r/smarthome thread reports going about 10 months between changes on an iTouchless. Reviewers consistently warn against using rechargeable batteries — a r/Costco user noted EKO specifically advises against rechargeables because the lower voltage causes erratic lid behavior.