Balqon Corp. has successfully completed four weeks of cold-weather testing on its lithium-ion battery-powered electric tractor, the Nautilus XE20. The performance of the tractor was demonstrated in actual warehouse applications at temperatures below 10°F (-12°C) under loads exceeding 25 ton (23 t). The Nautilus XE20—released in January—is designed, integrated, and built in cooperation with Autocar Truck and its Xspotter yard tractor team. The electric tractor is considered by both companies to be a commercially viable, zero-emissions alternative to traditional diesel-powered yard tractors currently in use in warehouse distribution centers, marine terminals, intermodal facilities, industrial plants, and railyards. The XE20 is designed for off-highway container or semi-trailer “spotting” applications and is equipped with Balqon’s proprietary heavy-duty drive system and lithium-ion battery management system. It can travel at speeds of up to 25 mph (40 km/h) and is capable of towing loads of up to 40 ton (36 t). The company already has shipped four units; lead time is 60 days. It has been demonstrating the tractor to numerous companies in North America.