How the heck do you pare down to two?
Years ago I had an electronic lock on a safe fail. It was not battery related but the repairman was adamant about using Energizer batteries.
I bought some 1632 from Amazon. Of course I can't find them at the moment. 6 of them cost about the same as 1 Energizer from Lowes. As much as I like to buy local and support brick and mortar the internet is so flippin easy and cheap.