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C battery

C size batteries typically are used in medium-drain applications like toys and musical instruments. The C battery type was standardized by ANSI as "14A" (alkaline) and is known internationally as LR14 (alkaline) or R14 (zinc-carbon).

C sized batteries are composed of a single chamber and are more correctly referred to as a cell. The nominal output voltage of single-use C batteries is 1.5 volts, while NiCd and NiMH rechargeable batteries have a nominal voltage of 1.2 V. Specialty batteries based on more unusual chemistries can run at a voltage as high as 1.6 V under load. The voltage of a C battery is the same as an AAA, AA or D cell. C batteries however provide power for a longer period than AA batteries, because their larger size allows them to store a greater mass of anode material which is consumed as it does electrical work. D cells, being larger, last longer still; as a rough guide, the capacity of a battery scales linearly with its mass.

Alkaline C batteries can hold up to 8,000 mAh, NiMH ones can have up to 6,000 mAh, and zinc-carbon ones usually have up to 3,800 mAh.