Sistimi e ts'oanang ke ho rarolla bothata ba hore betri e pakete ea matla a phahameng e tjhaja betri e nang le voltage e tlase ka lebaka la phapang ea voltage lipakeng tsa lipakete tsa betri. Hobane khanyetso ea ka hare ea sele ea betri e tlaase haholo, kahoo motlakase oa ho tjhaja o phahame haholo, o kotsing ea ho ba kotsing.