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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

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Aug 7
Order within 16 hours and 22 minutes
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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: 5.3 Pounds


Output Voltage: 12 Volts


Product Dimensions: 7.2 x 9.15 x 5.39 inches


Item Weight: 5.26 pounds


Item model number: GEN5X2


Date First Available: August 17, 2020


Department: Unisex-Adult


Manufacturer: NOCO


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 7

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


  • Worth the money
Size: 10A (5A per Bank)
Nice battery charger that is water proof and works great. It remembers its last charging state and returns to it once you plug it back in. The mounting holes are small and you can’t o they a 10/32 nut in the provided mount. The screws it comes with are not good for salt water or fiberglass. Other than that it’s 100% I would recommend to freind. ... show more
Reviewed in the United States on July 22, 2025 by roy arnette

  • Great Charger
Size: 10A (5A per Bank)
Works great. Very user friendly and easy to use.
Reviewed in the United States on June 26, 2025 by Amazon Customer

  • Amazing battery charger
Size: 10A (5A per Bank)
What can i say. Wow, I never knew what i was missing. I bought this to charge both my batteries on my boat. All i can say is Wow. Its a smart charger which means it does all the thinking for you in the aspect of temperature, charging, and battery maintenance. No regrets even though the price was a little steep. ... show more
Reviewed in the United States on May 27, 2025 by Tom Storm

  • The best on the market for the price
Size: 10A (5A per Bank)
Easy install, lowers of safety features. Waterproof enclosure. Good indication of battery life Ava condition.
Reviewed in the United States on June 17, 2025 by Bike Dad

  • Great on-the-boat Charger
Size: 10A (5A per Bank)
This is a pretty good charger, a few days before taking the boat out i'll plug this in and it'll charge up the trolling battery and the starter battery and it's ready to go. I did just get a lithium battery though 100mah which at only 5amps takes about 22 hours to charge from empty. I kind of wish it had a little more oomph. You can put both charger leads on one battery and charge at 10amps but if you bolt the connections that means getting out tools moving things around, who wants to deal with all that. But so far i've charged all 3 battery types on this charger and it's worked great on all of them. Good little unit. It remembers what the battery setting was on each power up too so you don't have to mess with picking the battery each time either. ... show more
Reviewed in the United States on June 17, 2025 by Kevin S

  • Potential Issue w/ 1 Bank Failing For Some but Great Warranty
Size: 10A (5A per Bank)
First off, this is my 6th NOCO product and all have been awesome. Great chargers, boosters, etc. Quality and performance has been superb! This GEN 5X2 forced me to have to use their customer service, warranty, etc. which has also been stellar. These GEN 5X2 dual bank chargers seem to have a common issue with one of the banks failing. One bank, mine was the second bank that failed, blinks between the charge bar and the standby lights. No matter the battery, the fuse, the connection, etc. A way to test it is to use a multi-meter to test for continuity between the positive and/or negative battery lead on that bank with the a/c power cord prongs - all disconnected, unplugged, no power, etc. The good bank will have some continuity like 36-37ohms. The bad bank will have nothing, pure open circuit. If it happens within the return with Amazon then use that. Otherwise, if its under the 3yr warranty then use no.co site to contact customer service for a warranty claim. Mine was after the 30 day return window. Initially buying it we only had one battery on our boat, knowing we were getting a second house battery. A couple months later we installed a second house battery on our boat and connecting the second charger bank, it immediately started the dreaded blink between the first charge indicator and the standby light, so that bank never worked. Not sure it is an immediate fail for others but was for ours. NOCO customer service was quick and easy. I reached out late at night with their request a call option on their website. The next day got a couple calls because I didn't have my phone near me, an email with troubleshooting steps, and next steps for a warranty claim. They'll let you ship it in and wait for a return after receiving and testing the failed unit. Or, they'll let you buy a replacement from their website - which was cheaper than here on Amazon - and refund the purchase once they've receive the return faulty unit and test it to verify the unit is faulty. I chose this option for a quicker replacement. 4 stars mainly for the unit failing but definitely love their products and am now a fan of their customer service. I'll follow up with review if the replacement unit fails and drop stars. If all is well, I think 4 is sufficient for an otherwise great product and company but consideration for this mishap. ... show more
Reviewed in the United States on June 1, 2024 by hollandbr2

  • All good
Size: 10A (5A per Bank)
Easy to install and works as described
Reviewed in the United States on June 17, 2025 by Allen Nichols

  • Works great !
Size: 10A (5A per Bank)
Great for folks who don't get out every week. Keeps those batteries charged up.
Reviewed in the United States on June 17, 2025 by susan chiantella

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