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⚡ Charge smarter, stay powered longer — the GEN5X3 is your marine battery’s best ally.
The NOCO Genius GEN5X3 is a cutting-edge, fully-sealed 3-bank onboard battery charger delivering 15 amps total (5A per bank) for 12V lead-acid and lithium batteries. It’s 37% smaller and 43% more powerful than its predecessor, featuring selectable charging modes, integrated thermal sensors for temperature-based charging optimization, and Force Mode to revive dead batteries. Rated IP68 waterproof and engineered for marine environments, it offers versatile, independent charging with a simplified mounting system and a 3-year warranty, making it the ultimate solution for professional-grade battery maintenance on boats and beyond.




















| ASIN | B08G3F4RN8 |
| Amperage | 5 |
| Battery Charge Time | 1 Hours |
| Best Sellers Rank | #5,490 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Boat Battery Chargers |
| Brand | NOCO |
| Built-In Media | (2) Black Truss-Head Screws, GEN5X3 15A 3-Bank Smart Waterproof Onboard Marine Battery Charger and Battery Maintainer (120-240VAC), Onboard Marine Battery Charger User Guide |
| Color | Black |
| Compatible Devices | 12-volt batteries (marine, boat, starter, deep-cycle, and lithium-ion) |
| Connector Type Used on Cable | Standard DC and AC power connectors |
| Current Rating | 15 Amps |
| Customer Reviews | 4.6 out of 5 stars 3,476 Reviews |
| Global Trade Identification Number | 00046221190465 |
| Input Voltage | 240 Volts |
| Item Dimensions D x W x H | 10.08"D x 8.86"W x 5.63"H |
| Item Type Name | NOCO Genius GEN5X3, 3-Bank, 15A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries |
| Item Weight | 6.1 Pounds |
| Manufacturer | NOCO |
| Mfr Part Number | GEN5X3 |
| Model Number | GEN5X3 |
| Number of Ports | 3 |
| Output Voltage | 12 Volts |
| Product Dimensions | 10.08"D x 8.86"W x 5.63"H |
| Specification Met | CEC, FCC, UL |
| UPC | 046221190465 |
| Unit Count | 1.0 Count |
| Warranty Description | 3-Year Limited |
G**Y
Good quality, reasonable price.
Functions exactly as expected and I am now charging 2 trolling motor batteries and 1 boat starting battery with 1 plug into the outlet. Simple install on my duck boat. I added length to the trolling motor wires following the instructions on proper splicing location (after the in line fuse) and it works perfect. Charging 2 AGM trolling Motor batteries and 1 Standard lead acid deep cycle battery.
W**R
Easy to use
Works great. Replace a identified one that came on my Tracker boat.
H**.
Good quality
Very nice packaging,easy install,good quality,
R**Z
Works great
Easy install , basically plug and play Chargers all tbree of my batteries
G**D
Unit Failed in less than 2 years
One of the charging stations failed in less than 2 years. This unit was rarely used. Very disappointed. Update: the manufacturer replaced the unit under warranty with no issues. Good customer service experience.
A**R
Great charger
Top quality product works great
J**Z
Charges quicker then expected.
This thing is amazing! It works perfectly!
A**N
Keep your batteries alive and well!
This makes the 3rd Noco charger/maintainer that I am using. This one is mounted in my boat to keep all the batteries up and ready for use. I like that it automatically detects your battery type and has wires long enough to reach all the batteries. I also have a 2 bank that keeps my mower and utv ready for use. And a single bank mounted in my truck, since it doesn't get used often, but it's always ready when I need it. It's never a good feeling when you've neglected you're batteries and they're dead when you need them. Could have saved my hundreds of dollars in batteries if I'd had these years ago. I highly recommend these chargers. I pretty small expense compared to replacing dead batteries every couple of years when they will no longer take a charge.
M**Z
Devolución de artículo
Si me falla como le hago para que me lo reparen ? ME PODRÁN GUIAR PARA CHECAR LA REPARACIÓN O EL LA DEVOLUCIÓN SEL CARGADOR
Z**I
اقراء قبل الشراء/للتثبيت في قارب-مركبه-كرفان متنقل فقط ولا يصلح لتثبيته في كراج او مواقف خارجيه.
هذا المنتج خاص ببطاريات القوارب ويتم تثبيته داخل القوارب او داخل الكرفانات المتنقله لشحن البطاريات فقط. (لا يصلح لتثبيته في مكان ثابت مثل المواقف او كراجات منزلية لوجوب ربطه بشكل مستمر مع البطاريات الا في حال ادخلت على اسلاك التثبيت بعض التعديلات لتصبح اكثر مرونه في النقل).
M**I
Carregador on board Noco
O aparelho é muito bom , recomendo.
L**N
So easy!
Very easy to install and get going. Took only a few minutes. Only thing I would mention, and this is from my own personal experience in the first few days, is that I have one onboard battery exclusively running my refrigerator. It draws about 4.5-5.5 Amps. The charger maintains the battery, but I have gotten a fault twice now where the charger thinks the battery is no good because it is not keeping charge (especially when the fridge is drawing more than the charger is putting in). So it faults and shuts down that line for charging and my battery discharges. When I shut the fridge off and reset the charger, it will charge that battery back up to full and no issues. So I might need to return this unit for the 10x3 unit to ensure adequate charge is available to maintain the battery with the fridge going. But awesome product and easy to install and use. I would recommend these to everyone.
T**K
Awesome Product.
I waited two seasons of charging before this review. I have multiple battery types and different requirements for charging and storing batteries charged and ready for use. This unit is literally plug and play, safe and incredibility reliable for keeping the batteries not only charged but conditioned while in storage over the winter. Highly recommend.
Trustpilot
2 days ago
1 week ago