If we compare a smartphone that was released five years ago and a smartphone that was released two months ago, you will notice the differences from a glance. High-quality cameras, pixel rich displays, slim design and the list goes on. Among all these advances there is one feature that has hardly improved from five years ago to today, and that is the battery. If you take an average smartphone, it takes almost two hours for it to charge fully. (Except devices that support Dash Charging and Fast Charging Technologies)
