A laptop is like a portable computer, Laptops are used by people who travel and work with it at different location. Usually they are placed on a table but you can also use them on your lap. You are dependent on your Laptop Charger. For the laptop that is traveling with you isn’t always a power supply within reach. On this kind of moments you can take advantage of a portable power supply. This can be connected to the charging point of a laptop. This is a kind of external battery. You have different kinds of types from USB to charging point and external batteries to charging point.
The same principle is when you want to use Lights in the garden but there is no power available. You can use Solar Garden lights. A solar garden light is very simple to install and requires very little maintenance in order to operate every day.