a cell or battery which is not intended to be recharged and is discarded when the cell or battery has delivered all its electrical energy, a device which converts energy from chemical compounds into electricity. A battery consists of one or more units (called cells) which are enclosed in an insulated casing. Each cell contains a positive and negative electrode separated by an electrolyte., galvaanielement - keemiline elektrivooluallikas, mis erinevalt akumulaatorist ei ole korduvalt laetav; koosneb elektrolüüdilahusest või -pastast (kuivelemendis) ja kahest sellesse sukeldatud elektrolüüdist