Now, this electrical potential energy is also known as electrical work. And we can express electrical work mathematically by equaling this guy to charge of an object or a system times our cell voltage. So if we're talking about cells and electrochemical cells, our charge refers to all the possible charge in our battery in our chemical cell or electric chemical cells. Now, recall that a single electron has a charge of 1.622
times ten to negative 19 Coulombs. This is per electron per one electron. But obviously, a single battery, a single electrochemical cell, has many electrons within itself.