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Dual Pro 12v 24v 36v 45 Amp AutoProfile Professional Series 3-Bank On-Board Charger

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Product InformationStore Part Number: PS3AUTO


The Dual Pro Professional Series PS3AUTO is a 12v 24v 36v 45 Amp three bank waterproof on-board marine battery charger. The PS3AUTO features an AutoProfile that is appropriate for charging Lithium or AGM Batteries. Dual Pro's battery algorithm was designed with battery manufacturers and validated to offer a 100% charge.

The Professional Series PS3AUTO provides an additional 5 amps per bank over the Sportsman Series charger. The additional amperage offers a quicker turnaround charge time which suits the professional fisherman and those that need a faster charge time.

The PS3AUTO features three independent 12v outputs meant for three 12v batteries no larger than a group 31 battery (approximately 130 AH). The PS3AUTO is capable of charging one of the following configurations:

  • Three independent 12v battery banks.
  • One 12v starting battery and a 24v Trolling Motor battery bank using two 12v batteries.
  • One 36v Trolling Motor battery pack comprised of three 12 volt batteries.

The unit features fully automatic multi-stage charging, on-board diagnostic codes for troubleshooting, and offers several regulatory approvals.


  • Approved for Lithium and AGM Batteries
  • Waterproof Design for use in fresh or salt water.
  • FCC Parts A & B interference compliant
  • DC charge cables = 5ft. AC power cord = 3ft.
  • Approved and meets ISO 8846 Marine standards
  • Ignition protected (US Coast Guard 33 CFR 183.410
  • 3 Year Warranty

Tech Specs

  • Dimensions (LxWxH): 13.00 x 8.25 x 6.0 in
  • Weight: 22.5 lb
  • Shipping Weight: 25 lb
  • AC Input Volts: 115 V
  • AC Input Current: 9 A
  • AC Input Volts Freq.: 60 Hz
  • DC Output Compatible System Voltages: 12v / 24v / 36v
  • Model: PS3AUTO
  • Manufacturer: Pro Charging Systems
  • DC Output Volts Per Bank: 12v
  • DC Output Max Current: 45 A
  • DC Output Max Current Per Bank: 15 A
  • Output Banks: 3
  • AC Cable Length: 3 ft
  • DC Cable Length: 5 ft
  • Safe For: Lithium & AGM
  • Manufacturer Part #: PS3AUTO
  • UPC: 738562002889
  • Made In: USA

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Specification Sheet

Order Line: 1-800-362-5397
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Tech Help: 541-474-4421
Fax: 541-471-6014
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Grants Pass, OR 97526