New ANENG M1 multimeter!

[floobydust]

A23's are used in old crappy remote controls and the cheap ones I find it's the connections on the button cells inside that oxidize and the cells last maybe a year in storage.
Sure they're cheap out of china but I didn't find them reliable or easy to find locally. In the UK they seem more prevalent.

[Fungus]

A23's show at $7.00 for 2 at Walgreens so I guess it's down to how long they last

I get them in a supermarket for $1.60 but I know they cost about $7 if I go to places that sell garage door openers (which is where you usually find them).

which would go back to that backlight.

Just to be clear, it's the "Mini" that uses A23s, it doesn't have a backlight.

The M1 (with super backlight) uses 9V PP3s.