What is the difference between different sizes of battery? Why can't a AAA battery power something that needs a AA? - Quora
![What are the differences between AA and AAA batteries? Why are AAA batteries a little more expensive than AA batteries even though they give the same output voltage and current ratio? - What are the differences between AA and AAA batteries? Why are AAA batteries a little more expensive than AA batteries even though they give the same output voltage and current ratio? -](https://qph.cf2.quoracdn.net/main-qimg-aa9e63c9c59d1bc6036c28f83297b13a.webp)
What are the differences between AA and AAA batteries? Why are AAA batteries a little more expensive than AA batteries even though they give the same output voltage and current ratio? -
![LCD 8 Bay Battery Universal Charger for AA AAA C D Rechargeable Batteries with 2A USB Port | Walmart Canada LCD 8 Bay Battery Universal Charger for AA AAA C D Rechargeable Batteries with 2A USB Port | Walmart Canada](https://i5.walmartimages.com/asr/390f5943-97a3-4cb5-8fc6-af3976817833.d2cb83801a417d383f20a479e66ac9ae.png?odnHeight=450&odnWidth=450&odnBg=ffffff)