A multi-bank battery charger is specifically designed to connect and to charge multiple batteries at once. This allows the user to charge up to 10 batteries simultaneously, depending on which model they get. This is useful when there are multiple applications such as a fleet of vehicles or units that need charged at the end of a day. A multi-battery charger is great for commercial and industrial businesses with many applications requiring scheduled charging or consistent charger use. High-Tech Battery Solutions has models made to charge anywhere from 2 - 10 batteries at the same time, depending on what your application requires.