ProMariner ProSportHD 8 Gen 4 2 Bank Marine Charger

The ProMariner ProSportHD 8 Gen 4 is an 8-amp 2-bank on-board marine battery charger from the Heavy Duty Recreational Series, featuring a tri-surface extruded heat sink design that delivers significantly faster charging through optimal cooling while maintaining true rated amp output during charge mode. Up to 40% lighter than epoxy-filled chargers, it is built for harsh marine environments with industrial grade jacketed AC and DC cables with molded strain reliefs and wire splitters.

Powered by the ProMar Digital Technology Microprocessor, this charger delivers fully automatic 5-stage digital performance charging that analyzes, charges, conditions, auto-maintains, and reconditions batteries once a month during storage periods. Distributed-On-Demand Technology utilizes 100% of available charging amps to any one bank or combination of both banks as needed. The expanded LED display with completion status gauge, four-color multi-stage charge mode indicator, System Check OK, and individual battery status and battery type indication provide complete charging visibility. An affordable and dependable entry-level marine charging solution alongside other fishing and boating electronics.

Key Features

• Tri-surface extruded heat sink design
• ProMar Digital Technology Microprocessor
• Distributed-On-Demand Technology
• Expanded 4-color LED completion status gauge
• Auto-maintain energy saver mode

Frequently Asked Questions

What battery types is the ProSportHD 8 Gen 4 compatible with? It supports Group 24–31 Flooded, AGM, HP AGM, and GEL batteries with 3 digitally selectable charge profiles.

Is the ProSportHD 8 Gen 4 suitable for harsh marine environments? Yes, it features industrial grade jacketed cables with molded strain reliefs, dual inline waterproof fuses, and ignition protection, certified to Marine UL 1236.

What is the warranty on the ProSportHD 8 Gen 4? It is backed by a 3-year warranty.

How does the ProSportHD 8 Gen 4 differ from the 12 and 20 Gen 4 models? The 8 Gen 4 is the entry-level model delivering 8 amps across 2 banks, ideal for smaller vessels and lighter charging demands, while the 12 and 20 amp models offer faster charging for larger battery banks.