Vehicle charging cable (lighter-socket plug) for charging the PI-4100 on the road.Potomac LM10541 Vehicle Charging Cable for PI-4100SKU: LM10541 $25.00 Regular Price$24.15Sale PriceExcluding Sales Tax | Shipping PolicyQuantity*Add to CartBrandPotomac InstrumentsProduct DetailsManufacturer: Potomac InstrumentsManufacturer part number: LM10541Sold by: Radio Gearheads, 705 Eaton Ave N, Fosston, MN 56542 Questions about compatibility, configuration or lead time? Call 1-800-992-1506 or use Get A Quote.