NOCO GEN5X3: 3-Bank 15A Onboard Marine Battery Charger | IP68 Waterproof

Meet the GEN5X3: a compact, rugged three-bank charger for demanding marine use

The NOCO GEN5X3 is a fully sealed, waterproof onboard charger rated at 15 amps total, with 5 amps per bank. It supports 12-volt lead-acid and lithium-ion batteries, including flooded, AGM, gel, and LiFePO4 chemistries. At 37% smaller and delivering 43% more power than the GENM3, it stands as NOCO’s most compact and advanced onboard charger yet. Three independent banks mean you can charge and maintain three batteries simultaneously, even if their chemistries or states differ.

Independent banks for flexible charging

Each bank operates independently, enabling precise charging and maintenance across multiple batteries in marine, boat, starter, and deep-cycle systems. By design, you can tailor the charging approach per battery while avoiding cross-impact between banks.

• Three banks, up to 5A per bank for targeted care
• Handles 12V lead-acid variants and lithium batteries, including LiFePO4
• Independent charging preserves battery health across diverse setups

Smart, adaptive charging features

Selectable charging modes for each bank—12V standard, 12V AGM, 12V Lithium, and 12V Repair Mode—let you optimize charging for different battery chemistries. An integrated thermal sensor automatically adjusts current to prevent heat-related or cold-related charging inefficiencies. In addition, Force Mode lets you start charging from very low or zero volts to recover neglected cells that would otherwise be deemed unusable.

• Temperature compensation maintains appropriate charging in hot or cold environments
• Force Mode enables recovery from very low or zero-voltage conditions
• Repair Mode supports battery health without compromising safety

Rugged, marine-ready design

Designed for the harshest marine environments, the GEN5X3 features IP68 waterproofing and has endured extensive life-cycle testing, including thousands of hours underwater. It mounts quickly and securely in any orientation—even upside down—thanks to a redesigned mounting system with an integrated anti-vibration backing that minimizes shock and noise. The unit ships with long cables (72 inches for DC and Type-B AC), two mounting screws, and a detailed user guide.

• IP68 fully sealed enclosure for saltwater and spray exposure
• Mounting versatility including upside-down installation with anti-vibration backing
• Long cables for flexible routing and easy installation

Reliability you can trust

Engineered in the USA and backed by a 3-year warranty, the GEN5X3 carries safety and marine compliance certifications (UL1236, ISO 8846, 33 CFR 183.410). This combination of robust construction and trusted standards helps support consistent, safe charging in marine settings.

• 3-year warranty and USA engineering
• UL1236, ISO 8846, and 33 CFR 183.410 certified
• All-in-one charger designed for reliability on the water

What’s in the box

• GEN5X3 15A 3-bank onboard charger with 72-inch DC cables and 3/8-inch eyelets
• 72-inch Type-B AC cable
• Two mounting screws
• User guide

In short, the GEN5X3 offers flexible, smart charging in a compact, marine-ready package. It’s built to support diverse battery setups while maintaining safety and efficiency in tough conditions.