Kalmar "batir C" yawanci tana nufin nau'in batirin busasshen cell na silinda wanda aka fi amfani da shi a cikin na'urorin lantarki masu ɗaukar hoto kamar fitillu, rediyo, da kayan wasan yara. Waɗannan batura gabaɗaya 1.5 volts kuma suna da daidaitaccen diamita na mm 26.2 da tsayin mm 50. Sunan "C" yana nuna girman baturin, tare da "A" shine mafi ƙanƙanta kuma "D" shine mafi girman girman da aka saba amfani dashi don busassun batura.