As we go about our lives, we use all kinds of technology that relies on batteries, whether that be a smartphone, a tablet or perhaps a notebook computer. As we use these devices, we recharge them before using them again. This process can happen thousands of times during a device's lifetime, especially if it's something that we charge each day, like a smartphone or a smartwatch. That's all well and good, but as anyone with an old notebook computer will tell you, batteries eventually start to see their overall capacity decrease as the battery itself begins to decay. That's not good for battery life.