Schumacher Electric started originally by designing and producing custom-built transformers for the electronic industry. Since our inception, Schumacher’s outstanding reputation and product lines have grown in proportion with our desire and capability to be best in each of the markets we serve. Today, Schumacher Electric is the world’s undisputed leader in the manufacturing and marketing of battery chargers, portable power sources, inverters/converters, battery testers, 12V accessories, and lithium ion battery chargers.