Dual Pro SS3AUTO 30A 3-Bank Marine Battery Charger Lithium/AGM

The Dual Pro SS3AUTO is a professional-grade marine battery charger featuring AutoProfile Intuitive Charging Technology that automatically detects and optimally charges both Lithium and AGM batteries. This 3-bank charger delivers 30 amps total output with three independent 10-amp banks, making it ideal for 12V, 24V, or 36V battery configurations commonly used in marine trolling motor and starting battery applications.

AutoProfile Technology:

• Automatically detects battery chemistry (Lithium or AGM) and adjusts charging parameters
• Advanced algorithms validated with battery manufacturers ensure 100% charge capacity
• Wake-up feature restarts lithium batteries that have shut down due to low voltage protection
• Temperature-compensated charging optimizes performance and battery longevity
• Auto-return to charge maintains batteries at peak readiness

Marine-Grade Construction:

• Fully waterproof design suitable for fresh and saltwater environments
• Rugged construction with no mounting restrictions
• Ignition protected per US Coast Guard 33 CFR 183.410
• ISO 8846 Marine standards compliant
• FCC 15 Parts A and B interference compliant

Smart Charging Features:

• Three independent 12V outputs, each delivering 10 amps
• Fully automatic multi-stage charging—just plug in and forget
• LED indicators display charging status and diagnostic codes
• Reverse polarity protection and overcharge protection
• Suitable for batteries up to Group 31 size (approximately 130 AH per bank)

Configuration Options:

• Three independent 12V batteries (e.g., two starting batteries plus trolling motor battery)
• One 24V system (two 12V batteries) plus one 12V starting battery
• One 36V trolling motor system (three 12V batteries in series)

Made in the USA. Backed by a 3-year manufacturer warranty. The Dual Pro Sportsman Series has set the standard for marine battery chargers for over two decades, delivering unmatched reliability, safety, and performance for serious anglers and boaters.