---
product_id: 249554814
title: "NOCO Genius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries"
brand: "noco"
price: "€ 399.29"
currency: EUR
in_stock: true
reviews_count: 13
category: "Noco"
url: https://www.desertcart.sk/products/249554814-noco-genius-gen5x3-3-bank-15a-onboard-battery-charger-5a
store_origin: SK
region: Slovakia
---

# 15A total output IP68 waterproof rating 3 independent charging banks NOCO Genius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

**Brand:** noco
**Price:** € 399.29
**Availability:** ✅ In Stock

## Summary

> ⚡ Charge smarter, stay powered longer — the GEN5X3 is your marine battery’s best ally.

## Quick Answers

- **What is this?** NOCO Genius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries by noco
- **How much does it cost?** € 399.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/249554814-noco-genius-gen5x3-3-bank-15a-onboard-battery-charger-5a)

## 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

- • **Force Mode Revival:** Resurrect dead batteries down to zero volts—never replace a neglected battery prematurely again.
- • **Smart Thermal Sensing:** Adaptive temperature compensation prevents overcharge or undercharge—battery longevity guaranteed in any climate.
- • **Marine-Grade Durability:** IP68 waterproof, shock-isolated mounting, and tested for thousands of hours underwater—built to brave the harshest marine conditions.
- • **Power-Packed Compactness:** 37% smaller yet 43% more powerful than its predecessor—max performance in minimal space.
- • **Triple Independent Charging:** Simultaneously charge and maintain 3 different 12V batteries with 5A per bank—customized power for every battery type.

## Overview

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.

## 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: 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.
Review: Tired of Replacing Batteries from Bad Weather - I cannot store my boat at home and the storage facility does not have power. It uses three batteries that are not cheap. So I remove the batteries in the off season and keep them in great shape using this charger and conditioner in my garage. Outstanding quality. Works well. Wall mountable. Great design. Easy to use and set up. Highly advise keeping the box to store the charger then not thing. Very compact. Powerful.

## 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 |
| Best Sellers Rank | #2,906 in Automotive ( See Top 100 in Automotive ) #28 in Battery Chargers |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,376) |
| Date First Available | August 17, 2020 |
| Department | Unisex-Adult |
| Item Weight | 6.09 pounds |
| Item model number | GEN5X3 |
| Manufacturer | NOCO |
| Product Dimensions | 2.2 x 7.9 x 6.5 inches |

## Product Details

- **Brand:** NOCO
- **Color:** Black
- **Item Weight:** 6.09 Pounds
- **Output Voltage:** 12 Volts
- **Product Dimensions:** 10.08"D x 8.86"W x 5.63"H

## Images

![NOCO Genius GEN5X3: 3-Bank, 15A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries - 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

### ⭐⭐⭐⭐⭐ Good quality, reasonable price.
*by G***Y on September 29, 2025*

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.

### ⭐⭐⭐⭐⭐ Tired of Replacing Batteries from Bad Weather
*by C***D on August 18, 2025*

I cannot store my boat at home and the storage facility does not have power. It uses three batteries that are not cheap. So I remove the batteries in the off season and keep them in great shape using this charger and conditioner in my garage. Outstanding quality. Works well. Wall mountable. Great design. Easy to use and set up. Highly advise keeping the box to store the charger then not thing. Very compact. Powerful.

### ⭐⭐⭐⭐⭐ Very good charger
*by M***K on January 22, 2026*

Very good charger. The multiple banks work very well on my boat batteries

## 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

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-08*