This Tranz X Lithium Battery Charger is designed for charging 36V lithium batteries. It features a universal input voltage of 100-240V~, 1.8A and an output voltage of 42.0V, 2.0A. The charger features LED indicators: Red light means charging and green light means full or disconnect. To ensure safe use, operate the charger in a dry environment only and consult the instruction manual before using. This charger was made in China by Shenzhen Modiary Co, Ltd.