i have to get some batteries for my remote control and landline phone
but can't make out a code, number or whatever. They are small, not
AAA types i don't think. any ideas what i should look for on Amazon.
Pretty much all normal cylinder shaped batteries are either AAA (the thinner pencil thickness) or AA (the fatter more like school chalk thickness). Those are in pretty much all of my remotes and phones etc in the house.