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NOCO GEN5X2 12V 10A 2-Bank OnBoard Marine Battery Charger & Maintainer

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Availability: In Stock.
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Arrives Sunday, Sep 6
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Size: 10A (5A per Bank)


Features

  • MEET THE GEN5X2 37% smaller and 43% more powerful than the GENM2. Its our most compact and advanced onboard charger yetengineered 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.
  • WHATS 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.

Description

The NOCO GEN5X2 is a fully-sealed, waterproof onboard battery charger rated at 10 amps total—5 amps per bank—designed for 12-volt lead-acid and lithium-ion batteries, including flooded, AGM, gel, and LiFePO₄ chemistries. It’s 37% smaller and delivers 43% more power than the previous-generation GENM2, making it our most compact and advanced charger yet. Each bank operates independently, allowing you to precisely charge and maintain two batteries simultaneously, even if they differ in type or condition. Selectable charging modes—12V, AGM, Lithium, and Repair Mode—offer tailored charging for battery health and longevity, while an integrated thermal sensor automatically adjusts charging in hot and cold climates to prevent overcharging or undercharging. For severely discharged batteries, Force Mode lets you manually begin charging from zero volts, a critical advantage for recovering deeply neglected batteries that other chargers can’t detect. Engineered for the harshest marine environments, the GEN5X2 features an IP68 rating and has endured brutal life cycle testing, including thousands of hours underwater. Installation is fast and secure in any orientation—even upside down—thanks to a redesigned mounting system with an integrated anti-vibration backing that isolates shock and noise. The GEN5X2 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’s backed by a 3-year warranty, engineered in the USA, and certified to UL1236, ISO 8846, and 33 CFR 183.410 for safety, ignition protection, and marine compliance.

Brand: NOCO


Color: Black


Product Dimensions: 7.2"D x 9.15"W x 5.39"H


Item Weight: 4.2 pounds


Output Voltage: 12 volts


Output Voltage: 12 volts


Input Voltage: 240 volts


Battery Charge Time: 1 hours


Current Rating: 10 A


Amperage: 5


Compatible Devices: 12-volt lead-acid and lithium-ion batteries (flooded, AGM, gel, LiFePO₄)


Connector Type Used on Cable: 12-volt battery connector


Number of Ports: 2


Item Dimensions D x W x H: 7.2"D x 9.15"W x 5.39"H


Item Weight: 4.2 pounds


Specification Met: CEC, FCC, UL


Color: Black


Brand: NOCO


Mfr Part Number: GEN5X2


Global Trade Identification Number: 58


UPC: 046221190458


Number of Items: 1


Manufacturer: NOCO


Unit Count: 1 Count


Built-In Media: (2) Black Truss-Head Screws, GEN5X2 10A 2-Bank Smart Waterproof Onboard Marine Battery Charger and Battery Maintainer (120-240VAC), Onboard Marine Battery Charger User Guide


Item Type Name: NOCO Genius GEN5X2, 2-Bank, 10A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries


Model Number: GEN5X2


Warranty Description: 3-Year Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 6

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


  • Excellent Charger – Easy Install & Great Battery Maintenance
Size: 10A (5A per Bank)
I installed the NOCO GEN5X2 onboard charger in the engine compartment of my boat, and it has been a fantastic upgrade. Installation was very straightforward. The unit is compact and rugged, and it mounted cleanly in the engine bay without getting in the way of anything. Wiring was simple and well-labeled, so the whole process went smoothly even working around other components. One of the standout features is the LED indicators. I really like being able to quickly check the status of each battery individually at a glance. Whether it’s charging, fully charged, or in maintenance mode, the lights make it easy to know exactly what’s going on without any guesswork. Another huge benefit is how well it maintains the batteries during long periods when the boat isn’t in use. During the off-season, it keeps everything topped off and conditioned, which helps extend the overall life of the batteries. That peace of mind alone makes it worth it. Overall, this charger is reliable, easy to install, and does exactly what it’s supposed to do. If you’re looking for a solid onboard charger that performs well and gives you clear status feedback, this is a great choice. ... show more
Reviewed in the United States on April 13, 2026 by Rick M

  • Excellent all-around product.
Size: 10A (5A per Bank)
This charger works great, doesn't overcharge your batteries, can be left connected to the batteries while the boat is operating, shows the charge status of each, and was very easy to install. What's not to like?
Reviewed in the United States on August 7, 2026 by Elizabeth K. Morgan

  • Great for the price
Size: 10A (5A per Bank)
I work on boats of all size. Works very well as a very small amp charger. I’ve in stalled several of these and have not had a problem. Of course buy a bigger one if you want faster charge time but for a dual battery vessel you can’t beat it.
Reviewed in the United States on June 14, 2026 by Mr. Holliday

  • Excellent customer service!!
Size: 10A (5A per Bank)
I purchased this in January of 2025. The first unit lasted a year without any issues, but one of the banks failed. I reached out to Noco customer service by email and was very pleased with their quick and professional response. They arranged for me to ship it back for repairs. Within about a week I received a brand new one in the mail. The new one did have a defect out of the box, which they also quickly remedied by shipping me another new unit. That unit seems be operating as expected. Just wanted to update this purchase with this review since they had such great customer service. That is priceless these days. What a great warranty too. Well worth the money. Will be a Noco customer for life. ... show more
Reviewed in the United States on August 18, 2026 by Wade

  • Great upgrade for a boat
Size: 10A (5A per Bank)
So far this has been working great, I installed it on my pontoon boat for my trolling motor batteries. I went fishing yesterday trolled around the lake for 5 hours in high winds, and used my spot lock several times when I returned home and plugged this charger in one of my batteries had 1 bar and the other had 2 showing, when I woke up this morning my batteries were full and the charger was just maintaining the charge. It was a very nice addition to my boat, and makes charging my batteries easy, by just plugging in one cord and letting the charger do the work. It works great with my lithium batteries. ... show more
Reviewed in the United States on April 17, 2026 by Shannon Beevers

  • Two failed chargers in five years
Size: 10A (5A per Bank)
I'm moving on to a different brand of charger after having two of these fail on me within the 3 year warranty period. I bought the 2 bank charger and one bank fails. I've submitted a warranty request and customer service has responded with an RMA number. So their customer service is responsive but, in the meantime, I'm without a boat charger until who knows how long. Update: NOCO sent me a new charger within two week of me submitting the warranty return; so updating from 1 star to 4 stars. ... show more
Reviewed in the United States on June 7, 2026 by susanb

  • Perfect product for battery maintenance
Size: 10A (5A per Bank)
Absolutely amazing product. Everything you could need to maintain your batteries. I installed this charger on my boat which has my main run battery, and a house battery; both large deep marine. I set them both to the batteries in using with a few clicks of the button, and that was it. The cord is a good length for any easily to each plug, but in my case I purchased an extension to run through my hull to the through hull connector. The connections are straight forward. Red to positive, black to negative. Each battery gets its own lead for the charger to maintain. After a boat day, I'll bring it home and plug it in. The charger remembers what settings you put it to, and picks right up from there. It'll start charging it immediately. I haven't had a need to test other functions of this unit, or really test out compatibility of other batteries since both of my are 12v lead acid. ... show more
Reviewed in the United States on July 20, 2026 by Brandon Battey

  • Charger
Size: 10A (5A per Bank)
Work great to keep my boat battery charged up
Reviewed in the United States on August 20, 2026 by Dan

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