7-Way RoadCharger 20 Amp Auxiliary Battery Charger

7-Way RoadCharger 20 Amp Auxiliary Battery Charger


Get more work done with this innovative vehicle to trailer auxiliary battery charger by constantly recharging your trailer batteries on the go. This DC-to-DC battery charger improves the condition of your 12V trailer-mounted battery faster than the competition, the 7-way connections allow for ease of application with no wire cutting or additional purchases. Simply charge your dump trailer batteries while the trailer is in tow and never miss a dump cycle again. 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.