A battery in which bleaching powder is the excitant. The zinc electrode
is immersed in a strong solution of salt, the carbon in a porous vessel
is surrounded with fragments of carbon and is packed with chloride of
lime (bleaching powder). There is no action on open circuit. It has to
be hermetically sealed on account of the odor. Its electro-motive force
is–initial, 1.65 volts; regular, 1.5 volts.

Synonym–Niaudet’s Battery.