Direct-Wire RoadCharger 20 Amp Auxiliary Battery Charger

Direct-Wire RoadCharger 20 Amp Auxiliary Battery Charger


This powerful 20 Amp DC-to-DC battery charger charges your auxiliary batteries faster than competing brands, all while driving down the road with your vehicles battery connected. Increase your productivity and reduce downtime due to dead battery mishaps. Ideal for commercial vehicles including box trucks with lift gates and vehicles equipped with hydraulic powered dump beds. This product is guaranteed to increase your productivity and reduce replacement battery costs.


  • Application: 12V or 24V Vehicle systems with Standard or Smart Alternators
  • Supported Battery Types: AGM, Gel, Standard Lead-acid, Calcium, and Lithium-ion Batteries
  • Input Voltage: +9.5 to +16V DC
  • Max Output Current: 20 Amps
  • Storage Temperature Range: -67° F to 257° F (-55° C to +125° C)
  • Ambient Air Operating Temperature: -40° F to 185° F (-40° C to +85° C)
  • Dimensions: 5.6” x 7.5” x 2.3”
  • Weight: 8.8 lbs
  • Compliance: FMVSS 121, SAE J227, TMC RP141
  • Ingress (IP) Rating: IP67, IP69K

Learn more about the RoadCharger and find other great Battery Maintenance products and systems at Healthy Battery.