AAA, AA, C and D cells are all 1.5 volt, 500ma batteries of different sizes.
A 9v batter delivers 9v at 500ma.
Other batteries exist as well (hundreds of them) from watch batteries smaller than the diameter of a pencil eraser to huge batteries used to power the telephone company.
Because there the chemical inside the battery is alkaline!
Aa, aaa, c,d
AAA batteries are rated at 1.5V as are AA-C-D batteries. Once down to 1.3V or lower they are not much use,
A "C" battery has a 1.5 Volts same with AAA, AA, and D batteries.
Smallest to Biggest in each category.Cylindrical-AAA < AA < C < DPrismaticLantern < 9-VoltThese are the most common batteries and generally the only ones consumers ever use.
With the same load current the AA will last longer that the AAA. This is due to the physical size of the cells. A C cell will last longer that a AA and a D cell will last longer that a C cell. In dry cells as the cells get larger the amp/hours increase.
The most common type of battery used in personal electronics are alkaline and carbon zinc batteries. They comes in different sizes including AAA, AA, C and D. AA and AAA are the most common.
From my experience, most portable radios take either quite a few AA's, or a few 9V's. Also you can get radios that need C and D batteries.
You can buy these at local appliance stores, hardware stores, and sometimes pharmacies, like Rite-Aid, Walgreens, etc. Just as a reminder battery coins are a bit more expensive than traditional batteries such as AA, AAA, D, C, 9V.
for mobile phones and communication radios, yes. as far as i know they do not make AA and other types of batteries like D, C, AAA, etc...
The Energizer Universal Battery Charger can recharge a number of different types of batteries. The types of batteries that can be recharged include AA, AAA, C, D, and 9 volt.
There are many different sizes of Sanyo batteries available. They available in Alkaline or rechargeable batteries. The different sizes of batteries include AAA, AA, C, D, and 9 volt.
There are literally hundreds of different types of batteries available to consumers. The most popular batteries for consumer electronics are AA, AAA, C, D, 9 volt, and smaller "watch size" batteries.