Picture this: You wake up one morning and have to go to work. While grabbing the stuff you need before you leave, you notice that you forgot to charge your phone’s battery overnight. It is at this point when you realize that you have two choices: Either you hope that the charge left on your phone is enough for a work day, or you end up going an hour late for work.
When charging batteries, you may notice some heat building up on the units. This is because of the battery's natural impedance.
