NOCO GENPRO10X4 12V 40A 4-Bank OnBoard Marine Battery Charger & Maintainer

Product Information

About this item

• MEET THE GENPRO10X4 — 10% smaller and 33% more powerful than the GEN4. It’s our most compact and advanced onboard charger yet - engineered for peak performance in the harshest marine environments.
• MULTIPLE BANKS — A four-bank onboard battery charger rated at 40 amps total - 10 amps per bank. Independently charge 12V batteries in marine, boat, starter, and deep-cycle systems.
• CHARGING MODES — Selectable modes for each bank: 12V, 12V AGM, 12V Lithium, and 12V Repair Mode. Independently charge and maintain all types of lead-acid and lithium-ion batteries with precision.
• ENJOY PRECISION CHARGING — An integrated thermal sensor adjusts charging based on ambient temperature, preventing overcharging in heat and undercharging in cold for optimal battery performance.
• CHARGE DEAD BATTERIES — Charge batteries from as low as 1 volt, or use Force Mode to manually begin charging batteries down to zero volts to recover deeply discharged or neglected batteries.
• REDEFINED MOUNTING — A simplified mounting system allows for fast, secure installation in any orientation - even upside down - with an integrated anti-vibration backing to isolate shock and noise.
• DESIGNED FOR WATER — A fully-sealed onboard charger rated IP68 for waterproof protection. Survives brutal life cycle testing, including thousands of hours underwater in the harshest marine conditions.
• WHAT’S IN THE BOX — GENPRO10X4 40A 4-bank onboard charger with 72-inch DC cables and 3/8-inch eyelets, 72-inch AC cable (Type-B), and two mounting screws. Backed by a 3-year warranty and engineered in the USA.

Product Description

The NOCO GENPRO10X4 is a high-performance, fully-sealed onboard battery charger rated at 40 amps total—10 amps per bank—built to simultaneously charge and maintain up to four 12-volt batteries. Compatible with all types of lead-acid and lithium-ion batteries—including flooded, AGM, gel, and LiFePO₄—the GENPRO10X4 delivers 19% more power in a housing that’s 27% smaller than the -generation GEN4. Each of the four banks functions independently, giving you the flexibility to charge different battery types, chemistries, or states of charge at the same time. With selectable charging modes for 12V, AGM, Lithium, and Repair, the GENPRO10X4 ensures optimal battery care and performance across a wide range of applications. An integrated thermal sensor dynamically adjusts the charging profile based on temperature to prevent undercharging in the cold or overcharging in hot climates. For heavily discharged batteries, Force Mode provides manual charging capability down to zero volts—critical for reviving batteries other chargers can’t detect. Built to withstand the toughest marine conditions, the GENPRO10X4 is IP68-rated for waterproofing and has passed rigorous life cycle testing, including thousands of hours of submersion. Its compact footprint and advanced mounting system make installation fast and secure in any position—even upside down—while an integrated anti-vibration backing minimizes shock and noise. Included in the box are 72-inch DC cables with 3/8-inch eyelets, a 72-inch Type-B AC cable, two mounting screws, and a user guide. The GENPRO10X4 is backed by a 3-year warranty, engineered in the USA, and certified to UL1236, ISO 8846, and 33 CFR 183.410 for marine ignition protection and safety compliance.