I had a toy when I was a kid that took 6 AA batteries. Now I know that means it wanted around a 9V input. But why did it take 6AAs instead of one 9V? The 9V would’ve been smaller and lighter, wouldn’t that have let them make a smaller battery compartment and save on manufacturing costs?
In: 7
It may not have wanted 9V, it could have been 4.5V.
In that case the batteries would be wired in parallel to provide double the current, but half the voltage.
I would also guess that 6 AA batteries have a higher capacity than a single 9V battery, meaning it lasts longer.
Its also worth considering lazy development/cheap manufacturing. It wouldn’t be too surprising if the connections for AA were cheaper or the manufacturer happened to have bought them for something else, or they reused an old plastic mold from a different toy to save money.
I think that some sizes of batteries are even just more commonly used in different parts of the world, so maybe it was designed where AA batteries were super common.
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