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NOCO Genius GENPRO10X3, 3-Bank, 30A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries

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Availability: In Stock.
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Arrives Saturday, May 23
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Size: 30A (10A per Bank)


Features

  • MEET THE GENPRO10X3 27% smaller and 33% more powerful than the GEN3. Its our most compact and advanced onboard charger yet - engineered for peak performance in the harshest marine environments.
  • MULTIPLE BANKS A three-bank onboard battery charger rated at 30 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.
  • WHATS IN THE BOX GENPRO10X3 30A 3-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.

Description

The NOCO GENPRO10X3 is a fully-sealed, waterproof onboard battery charger rated at 30 amps total—10 amps per bank—designed to independently charge and maintain up to three 12-volt batteries. Optimized for lead-acid and lithium- ion batteries, including flooded, AGM, gel, and LiFePO₄ chemistries, it’s 27% smaller and 19% more powerful than the previous-generation GEN3, delivering best-in-class performance in a compact, rugged housing. Each of the three banks operates independently, allowing you to charge multiple battery types or states simultaneously, with selectable charging modes including 12V, AGM, Lithium, and Repair Mode. An integrated thermal sensor constantly monitors ambient temperature and adjusts the charging profile to prevent overcharging in heat or undercharging in cold—ensuring maximum battery life and performance. For batteries discharged below 1 volt, Force Mode enables manual charging down to zero volts, giving you the ability to recover deeply neglected batteries that traditional chargers cannot detect. Engineered for harsh marine and outdoor environments, the GENPRO10X3 features an IP68 waterproof rating and has undergone extensive life cycle testing under submerged conditions. A redesigned mounting system enables quick, secure installation in any orientation—even upside down—and includes an anti- vibration backing to reduce shock and noise. The GENPRO10X3 comes with 72-inch DC cables with 3/8-inch eyelets, a 72-inch Type-B AC cable, two mounting screws, and a user guide. It is backed by a 3-year warranty, engineered in the USA, and certified to UL1236, ISO 8846, and 33 CFR 183.410 for ignition protection and marine compliance.

Brand: NOCO


Color: Black


Product Dimensions: 2.83"D x 10.51"W x 8.11"H


Output Voltage: 12 Volts


Specification Met: CEC, FCC, UL


Output Voltage: 12 Volts


Input Voltage: 120 Volts


Battery Charge Time: 1 Hours


Current Rating: 30 Amps


Amperage: 30


Connector Type Used on Cable: Standard DC and AC power cables


Number of Ports: 3


Item Dimensions D x W x H: 2.83"D x 10.51"W x 8.11"H


Specification Met: CEC, FCC, UL


Color: Black


Brand: NOCO


Mfr Part Number: GENPRO10X3


Global Trade Identification Number: 96


UPC: 046221190496


Manufacturer: NOCO


Model Number: GENPRO10X3


Item Type Name: NOCO Genius GENPRO10X3, 3-Bank, 30A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries


Warranty Description: 3-Year Limited


Built-In Media: (2) Black Truss-Head Screws, GENPRO10X3 30A 3-Bank Smart Waterproof Onboard Marine Battery Charger and Battery Maintainer (120-240VAC), Onboard Marine Battery Charger User Guide


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Built like a tank!
Size: 30A (10A per Bank)
I purchased this multi-battery charger for use on my live aboard sailboat. I have a lead acid dual purpose batter for starting her diesel auxiliary and a dual LiFePo4 house battery bank. This charger will replace the old charger which wasn't suitable for the LiFePo4 batteries. 1) it is one solidly built charger! I feel confident it will be up to the task of keeping my electrical storage banks charged. 2) can charge three batteries (lead acid, AGM, and lithium) at the same time. 3) the instructions are easy to follow. This is certainly not a detractor but I do wish there were a way to connect the charger to my boat's AC power panel without voiding the warranty by cutting the three prong plug off of the power cord. I could, alternatively, wire a wall type plug from the power panel to plug the charger in but I would much prefer to hard wire it to one of the AC circuit breakers. I could also plug it into a DC to AC inverter. I'll have to ponder this a bit. But all in all I am, so far, happy and satisfied with this purchase and that it will meet my needs on the boat. Once I have it installed I will update my review with performance results. Update: I've had the charger connected and working on my boat in the local marina. It does it's job wonderfully. Keeps my house and starter batteries topped off and ready for use. I have no regrets with purchasing this battery charger and would recommend it to anyone looking for a quality product to maintain their boat and/or RV batteries. ... show more
Reviewed in the United States on May 2, 2024 by Ukukat

  • Good quality, long connection leads for batteries, fuse protected with micro blade fuses
Size: 30A (10A per Bank)
Upgraded to lithium batteries for my 36v trolling bank so had to change out the charger for lithium compatible unit. Much smaller and lighter than 2007 Lund factory three bank charger. Leads were plenty long to connect batteries which are in two compartments. Both legs of charger leads are fused with micro blade fuses, not sure why both legs but sure can’t hurt anything protecting both positive and negative sides. Cables and terminals appear to be good quality. Simple set up to configure to lithium charge profile. Bluetooth BMS on batteries showed just shy of 10 amp charge coming into each battery, so seems to charge as designed. Switched to maintenance mode after each were fully charged. Three year warranty is nice on a boat electrical part. ... show more
Reviewed in the United States on April 12, 2025 by Matthew B.

  • Works exactly as described
Size: 30A (10A per Bank)
Very well made, and works exactly as described. If I could change 1 thing I would like to have 1 lead extendable because my trolling motor batteries are in the front of the boat and the engine battery is in the rear.
Reviewed in the United States on February 21, 2026 by Crazy days

  • Great Charger - Fast.
Size: 30A (10A per Bank)
Easy to install, wire and operate. Great charger for the boat. Have in a Tracker Pro 170. Use it on 2 lithium batteries and the starter battery.
Reviewed in the United States on October 12, 2025 by Steve

  • Good Charger
Size: 30A (10A per Bank)
I changed the batteries in my bass boat to lithium and need a 3 bank charger for them. I've had NOCO in other boats and never had an issue. No issues with this one as it charges the batteries pretty quickly.
Reviewed in the United States on March 6, 2026 by Jim T.

  • Great unit
Size: 30A (10A per Bank)
I had to replace my onboard charger on my bass boat. I have a 24V trolling motor system (2 batt) and a cranking battery. This was a simple install and worked perfectly when I plugged it up. I've used NOCO products in he past and always feel safe and well taken care of with their products. The two mounting "slots" helped out in mounting this unit vs two mounting "holes". I love the fact that you can plug it in and just forget about it. It can be plugged in "indefinitely" and causes no harm to the unit or batteries. It seems a little pricey but you get what you pay for. ... show more
Reviewed in the United States on April 21, 2024 by Ed D.

  • Top Notch Product.
Size: 30A (10A per Bank)
This was a great investment. I was tired of having to either lug batteries or chargers and extension cords around to charge our boat batteries. Its pricey but it has left me with fully charged batteries in my boat. The unit is sturdy and needs to be mounted securely but that is not an issue but more a recommendation when it is placed it should be on a secure surface. I wish I would have purchased this long ago; it would have saved me lots of anguish at the boat ramp not to mention my wife's displeasure when a boating of fishing afternoon was ruined by a dead battery. ... show more
Reviewed in the United States on December 23, 2025 by C. Andrus

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