Dometic introduces a new upgraded battery-powered auxiliary air conditioning system for day cabs. The day-cab HVAC unit was created in response to a growing demand for cost-effective solutions to reduce idling while waiting to load and unload at terminals. Based on Dometic's patented split-system HVAC technology, the 7,000-BTU day cab air conditioning system provides two hours of cooling without running the truck's engine. It uses a bank of Group 31 absorbed glass mat (AGM) batteries, which replaces the truck's existing batteries. Since the system emits no exhaust, it fully complies with CARB regulations.