--- product_id: 249554814 title: "GEN5X3 12V 15A 3-Bank OnBoard Marine Battery Charger & Maintainer" brand: "noco" price: "€ 457.37" currency: EUR in_stock: true reviews_count: 13 category: "Noco" url: https://www.desertcart.hr/products/249554814-gen5x3-12v-15a-3-bank-onboard-marine-battery-charger-maintainer store_origin: HR region: Croatia --- # 15A total output power IP68 waterproof rating 3 independent charging banks GEN5X3 12V 15A 3-Bank OnBoard Marine Battery Charger & Maintainer **Brand:** noco **Price:** € 457.37 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay ahead — the ultimate marine battery charger for the savvy millennial captain. ## Quick Answers - **What is this?** GEN5X3 12V 15A 3-Bank OnBoard Marine Battery Charger & Maintainer by noco - **How much does it cost?** € 457.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/249554814-gen5x3-12v-15a-3-bank-onboard-marine-battery-charger-maintainer) ## Best For - noco enthusiasts ## Why This Product - Trusted noco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** 37% smaller yet 43% more powerful than its predecessor—charge smarter, not bulkier. - • **Smart Thermal Sensing:** Adaptive charging adjusts to ambient temperature, maximizing battery life and performance. - • **Effortless Installation:** Redesigned mounting with anti-vibration backing allows quick, secure setup in any orientation. - • **Marine-Grade Durability:** Fully sealed IP68 design survives harsh marine environments, including underwater submersion. - • **Triple Independent Charging:** Simultaneously maintain three 12V batteries with tailored modes for lead-acid & lithium types. ## Overview The NOCO GEN5X3 is a cutting-edge 12V, 15A onboard marine battery charger featuring three independent 5A banks with selectable charging modes for lead-acid and lithium batteries. It boasts a compact design 37% smaller and 43% more powerful than its predecessor, an IP68 waterproof rating for extreme marine durability, and smart thermal sensors for optimized charging in all climates. Engineered for easy installation and backed by a 3-year warranty, it’s the professional’s choice for reliable, precision battery maintenance on the water. ## Description The NOCO GEN5X3 is a fully-sealed, waterproof onboard battery charger rated at 15 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 GENM3, making it our most compact and advanced charger yet. Each bank operates independently, allowing you to precisely charge and maintain three 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 GEN5X3 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 GEN5X3 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. Review: Great at maintaining 12 V lead acid or agm batteries - Works well at keeping my 12 volt boat batteries at 100% charged. Easy to install too. Review: Highly recommended for boats - Can’t recommend the Noco genius enough. I mounted this in my boat and it works very good.!all you gotta do is plug an extension cord in and it does all the work. Makes charging batteries a breeze. Very simple to hook to battery’s. ## Features - MEET THE GEN5X3 — 37% smaller and 43% more powerful than the GENM3. It’s 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 15 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 — GEN5X3 15A 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08G3F4RN8 | | Amperage | 5 | | Battery Charge Time | 1 hours | | Best Sellers Rank | #10,987 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 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 A | | Customer Reviews | 4.5 out of 5 stars 3,547 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 Items | 1 | | 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 Count | | Warranty Description | 3-Year Limited | ## Product Details - **Brand:** NOCO - **Color:** Black - **Item Weight:** 6.1 pounds - **Output Voltage:** 12 volts - **Product Dimensions:** 10.08"D x 8.86"W x 5.63"H ## Images ![GEN5X3 12V 15A 3-Bank OnBoard Marine Battery Charger & Maintainer - Image 1](https://m.media-amazon.com/images/I/81mX5C2+bxL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: My application is a 36v golf cart (3 x 12v) - I'm assuming that I could use this for a battery maintainer (one "channel" for ea 12v battery)?** A: Yes. Channel 1 to battery 1, channel 2 to battery 2, channel 3 to battery 3. **Q: I have 2 group 31 Deep cycle batteries in series. Is the charge time with this charger longer leaving them connected? what's the difference?** A: As long as there is nothing hot feeding off the battery should charge just as fast either way. Leaving the charger connected all the time won’t hurt your batteries. It will go into standby on its own once the batteries reach full charge **Q: Can this be used for all types of standard 12V car batteries?** A: Yes, it works on 12 and 24 volt systems. I love mine and it will also tell you if your battery is bad. You will love it, works great! **Q: Is it supposed to stay lit after unplugged from marina? Mine is off while the boat is out.** A: No it doesn't stay lit when unplugged from the power supply. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great at maintaining 12 V lead acid or agm batteries *by B***N on June 20, 2026* Works well at keeping my 12 volt boat batteries at 100% charged. Easy to install too. ### ⭐⭐⭐⭐⭐ Highly recommended for boats *by T***Y on June 4, 2026* Can’t recommend the Noco genius enough. I mounted this in my boat and it works very good.!all you gotta do is plug an extension cord in and it does all the work. Makes charging batteries a breeze. Very simple to hook to battery’s. ### ⭐⭐⭐⭐⭐ Great product *by R***R on June 10, 2026* For the money...well worth it. Works great. Charging 2 lithium batteries and one starting battery. ## Frequently Bought Together - 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 - NOCO GCP1 15A AC Port Plug, 125V Power Inlet Socket, and Waterproof Electrical Outlet Receptacle Box with 16-Inch Integrated Outdoor Extension Cord - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/249554814-gen5x3-12v-15a-3-bank-onboard-marine-battery-charger-maintainer](https://www.desertcart.hr/products/249554814-gen5x3-12v-15a-3-bank-onboard-marine-battery-charger-maintainer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-20*