The Progressive Dynamics PD9130 converter can be used as a battery charging system for utility vehicles and managed fleets to avoid dead batteries and cold weather starts. The PDI converter allows batteries to remain charged after the converter is plugged in overnight or over the weekend, and the PD9130 can be plugged into any 115V outlet, according to the company. While plugged in, a vehicle’s battery remains at optimal voltage as the converter simultaneously charges the battery and provides an additional 30 amps for any equipment left on.