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

AA and AAA are the standards. Easier to stack them in series/parallel to get the required voltage/current than it is to make another standard. Lipos are 3.7v but good luck getting one to click into your TV remote.