Dragonfly Energy's Battle Born All-Electric APU is a lithium-ion battery-powered solution that provides power for HVAC, appliances, and amenities in the cab without the need for idling, while also reducing fuel and maintenance costs. The lithium-ion unit has a pre-wired box for easy installation and the low-profile design allows it to fit between the frame rails. Wireless monitoring is available to track true state of charge and battery health. ROI can be expected in under two years, the company said.