What is the Difference Between AA (No. 5) and AAA (No. 7) Batteries?
In the global battery market, particularly when sourcing from Asian manufacturers, you will frequently encounter the terms “No. 5” and “No. 7” batteries. For international buyers and engineers, this regional naming convention can sometimes be confusing. Simply put, No. 5 refers to the standard AA battery, and No. 7 refers to the standard AAA battery. […]