Electrical energy is to a smartphone what pepperoni pizza and Mountain Dew are to us. It is what makes our gadgets work. Without it, we wouldn’t be able to look up recipes for nacho dips or ask Siri how tall LeBron James is whenever we please. That is why providing our handsets with power whenever they need it is kind of important. Alas, today’s smartphone batteries are very limited in how much charge they can hold. Even the top models out there go from full to zero after a day or two of regular use.
Power banks – those handy dandy portable battery packs – aim to solve the problem of smartphones’ unsatisfactory battery life.
