Power banks and portable chargers are both devices used to charge electronic devices, such as cell phones, laptops, and digital cameras. Both devices have a battery that is charged via an AC adapter or USB port. The main difference between the two devices is that power banks can be used to charge multiple devices…

Your phone is one of the most essential pieces of technology you own, so it's important to keep it charged and ready to go. But what do you do when you're in a pinch and don't have a charger handy? There are a few ways to charge your phone without a charger, and we'll…