I'm fixing a kid's toy that was damaged by corrosion (stored with the batteries). The only damaged part was the battery compartment, so I opened it up, clipped off the internal wires to that bit, soldered extensions on them & ran those through holes in the case, in order to put an external 6 AA holder on. As it turns out, the 6 AA battery holder I bought clips onto a 9 V battery attachment, which I had in stock. As I was putting this together, I realized that 6 AAs in series make about 9 V, so I'm wondering why a toy would run on 6 AAs when 1 9V would be smaller & easier?
(Yes, I know it should be "cells" rather than "batteries".)
Thanks.