Question: what is 2/3 aa battery?
Answer: Nickel Cadmium (NiCD) batteries are 1.2 volt cells that are one battery used in solar lights. The sizes that are common used in solar lights are AA, AAA, 2/3 AA and 2/3 AAA. ... Nickel Metal Hydride (NiMH) batteries are also 1.2V and are also widely used.