Enwere ike kewaa ikpo chaja dị n'ahịa ụzọ abụọ: ikpo chaja DC, ikpo chaja AC na ikpo chaja dị mfe ibugharị dịka usoro chaja si dị. Na mgbakwunye, ụlọ ọrụ anyị na-enyekwa ihe mgbakwunye chaja, dịka ihe nkwụnye, egbe isi abụọ, ebe nchekwa ike dị mfe ibugharị, wdg.