On Fri 26 Jan 2024 at 19:03:33 (+0100), Roger Price wrote: > I currently have two Eaton Ellipse ECO 1600's. I change the batteries > every 4-5 years, but this is not as easy as it should be. It is not > evident that only one of the four back panel screws needs to be > removed. I took me a while to learn this. The four screws are deeply > recessed and difficult to see. They have different heads: some are > Torx 10, others are a star. Keep trying different screwdrivers until > you feel something turning.
20/20 hindsight might suggest that you were only intended to remove the star, if by that you mean Philips/Pozidrive. Cheers, David.