ELI5. Why do most devices requiring AA or AAA batteries need at least two. Why not create a standard battery that is the equivalent of two or have common circuitry that only relies on one battery of a similar low profile?

Question

ELI5. Why do most devices requiring AA or AAA batteries need at least two. Why not create a standard battery that is the equivalent of two or have common circuitry that only relies on one battery of a similar low profile?

In: Engineering

Answer 1

They did and my early digital camera used them. It was hard to find and cost twice as much. I used the standard AA instead. It is cheaper to produce a lot of one thing in huge quantities than change equipment produce a few and set up for the next. Less set up time so the line keeps making products.