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The GEN5X2 is a two-bank onboard battery charger rated at 10 amps total, 5 amps per bank, for 12V marine, boat, starter and deep-cycle batteries. It is fully sealed and IP68 waterproof, with selectable modes for lead-acid, AGM and lithium plus a repair mode, and an integrated thermal sensor that adjusts output to ambient temperature. It is smaller and more powerful than the GENM2 it replaces, and it can revive batteries down to 1 volt or, in Force Mode, from zero volts. It suits boat owners who want a permanent, mount-anywhere charger maintaining two batteries independently; against single-bank chargers it costs more but removes the need for a second unit, and against cheaper onboard chargers it adds waterproofing and lithium support.
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Lowest price we've seen: $139.95 on Nov 10 at Home Depot. Tracked across 4 stores since Nov 10.
Owners rate it highly, with 4.5 out of 5 from 107 ratings. They like the sealed waterproof build, the independent banks and the set-and-forget maintenance; the main complaints are the modest per-bank current and the sparse status indicators.
NOCO GEN5X2 NOCO Genius GEN5X2: 2-Bank, 10A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries MEET THE GEN5X2 — 37% smaller and 43% more powerful than the GENM2. It’s our most compact and advanced onboard charger yet—engineered for peak performance in the harshest marine environments., MULTIPLE BANKS — A two-bank onboard battery charger rated at 10 amps total - 5 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 — GEN5X2 10A 2-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. 10A (5A per Bank) Black
