Dual Pro SS4 Auto 40A Four-Bank Lithium/AGM Charger

The SS4 Auto combines the Sportsman Series format with automatic selection between lithium and AGM battery charging. It delivers a stated 40-amp output across a four-bank system. Separate outputs let the charger work with individual batteries in a multibattery boat. The chemistry-detection feature is especially useful where a battery setup may be upgraded over time.

AutoProfile charging selects algorithms intended for the supported lithium or AGM chemistry. A startup feature is included for compatible lithium batteries that have shut down under low-voltage protection. The charger also returns to charging automatically when conditions call for it. Diagnostic codes help the owner check charging status without tracing each connection manually.

The housing is described as waterproof for onboard fresh- and saltwater applications. Published marine compliance includes ISO 8846 and ignition protection. Although it can recognize supported battery chemistries, the actual batteries and installation must be suitable for the charger's specified output. Find more marine battery chargers for other onboard charging configurations.

• Automatic lithium or AGM charge-profile selection
• Independent output circuits for multiple batteries
• Low-voltage lithium startup feature
• Built-in diagnostic and automatic recharge functions