---
product_id: 6581637
title: ""
brand: "noco"
price: "$100.98"
currency: USD
in_stock: true
reviews_count: 5
url: https://www.desertcart.ec/products/6581637-
store_origin: EC
region: Ecuador
---

# 20A Power Waterproof Advanced Safety 

**Brand:** noco
**Price:** $100.98
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Adventure!

## Quick Answers

- **What is this?**  by noco
- **How much does it cost?** $100.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/6581637-)

## 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

- • **Safety First:** Equipped with spark-proof technology and multiple safety protections.
- • **Charge Smartly:** Independently charge two 12V batteries with 10A per bank.
- • **Rugged Reliability:** IP68 rated, submersible up to 3 meters for ultimate durability.
- • **Certified Excellence:** Meets stringent safety standards with a 5-year warranty.
- • **Versatile Compatibility:** Supports all lead-acid battery types from 25-230Ah.

## Overview

The NOCO Genius GEN2 is a cutting-edge, fully-automatic smart marine charger designed to efficiently charge and maintain two 12-volt batteries independently. With a robust 20-amp output, advanced safety features, and rugged waterproof construction, this charger is perfect for any marine enthusiast looking to ensure their batteries are always ready for action.

## Description

The GEN2 On-Board Battery Charger offers the perfect mix of high-technology and rugged construction. With a fully-sealed, waterproof housing, the GEN2 can be easily installed and mounted directly onto a variety of applications and specifically designed for tough marine environments. Its waterproof design is capable of withstanding submersion down to 3-meters for extended periods of time without failure, and rated IP68 and NEMA 6P, providing continuous operation in the most extreme environments. The GEN Series On-Board Battery Chargers are some of the most advanced charging technology in its class. Utilizing the latest topology and power design, it is one of the most compact and lightweight battery chargers. Its onboard processor is capable of detecting, diagnosing, recovering, charging and maintaining all types of lead-acid batteries. Safely charge Wet Cell (Flooded), Gel Cell, AGM and Deep-Cycle batteries with zero overcharge. Plus, it protects against reverse polarity, sparks, short circuits, open circuits, and thermal runaway. And the GEN Series On-Board Battery Chargers are completely automatic. It continuously monitors the battery - while detecting any potential battery problems - shutting off power when the battery is fully charged, but observing the battery for optimal battery maintenance. Not only do the GEN Series On-Board Battery Chargers have advanced safety features, but have also been tested and certified by multiple third-party laboratories, including Underwriters Laboratories UL1236, ISO 8846 Marine Standards, and Ignition Protection US Coast guard 33 CFR 183. 410. And all of this is backed by our 5-Year Limited warranty. Other commonly used search terms: 2 bank marine battery charger, 3 bank marine battery charger, 4 bank marine battery charger, battery charger for boat, boat battery charger, boat battery charger 2 bank, marine battery charger, marine battery charger 2 bank, noco boat battery charger, noco gen battery charger, noco onboard charger, on-board battery charger, onboard battery charger, onboard battery charger for boats, onboard marine battery charger, rv battery charger, waterproof battery charger, waterproof boat battery charger, waterproof marine battery charger, waterproof marine battery charger.

## Features

- A 20 amp (10 amp per bank) on-board battery charger for charging and maintaining two 12-volt batteries independently.
- Safely charge all types of lead-acid batteries from 25-230Ah, including wet, gel, AGM, and deep-cycle batteries.
- Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection.
- Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.
- One of the most advanced battery chargers in its class, which is certified to UL1236, ISO 8846, 33 CFR 183. 410, plus backed by a 5-year.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | NOCO |
| Brand | NOCO |
| Model | GEN2 |
| Item Weight | 9.06 pounds |
| Product Dimensions | 1 x 1 x 1 inches |
| Item model number | GEN2 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | GEN2 |
| Lift Type | 12v |
| Amperage | 20 Amps |
| Voltage | 12 Volts |

## Product Details

- **Brand:** NOCO
- **Color:** Black
- **Product Dimensions:** 9.37"D x 11.02"W x 6.3"H
- **Item Weight:** 9.06 Pounds
- **Output Voltage:** 14.4 Volts

## Images

![ - Image 1](https://m.media-amazon.com/images/I/A1aaKr3+QML.jpg)
![ - Image 2](https://m.media-amazon.com/images/I/911NsZeIrrL.jpg)
![ - Image 3](https://m.media-amazon.com/images/I/912SrfDvfXL.jpg)
![ - Image 4](https://m.media-amazon.com/images/I/91-2F8QnNpL.jpg)
![ - Image 5](https://m.media-amazon.com/images/I/91332frGdRL.jpg)

## Questions & Answers

**Q: Both my batteries can sit for for days at 13.3 volts (while off the charger) then i plug them in and red lights are on for two days? batteries are new**
A: If they are at 13.3 volts, they don’t need to be charged

**Q: What is the maximum charging voltage on these NOCO chargers?  I want to keep it under 15V if possible for my AGM batteries.**
A: It is a 12volt system, I have never seen it exceed it by more than 0.5 volts on my meter.  This question is best addressed with the manufacture if you are extremely concerend.  The amperage is what is going to vary the most with the discharge of your battery or batteries.  I have had it for two (2) years and I am very happy with it, so much that i replaced the one in my travel trailer with a single NOCO and it works wonderful with my 12 volt lighting and fans.

**Q: Does this pair well with optimum batteries?**
A: I have a different model but I am sure these work with all type batteries

**Q: What gauge wire is used on the leads?  I'd like to cut the circle connectors off and leave about 2 ft but add a plug.**
A: Received this in an email form NOCO regarding Genius Gen2 on-board charger:
"The DC leads are 14AWG, and can be extended up to an additional 10' without modifying or moving the fuse. The fuse must remain in place and the additional length must be added after the fuse. Absolutely no AC modifications allowed. The warranty will remain intact as long as these guidelines are followed. We do not provide information on extending the cables so you will have to research the appropriate cable and connections yourself. An additional fuse may be added closer to the battery for additional safety."

## Customer Reviews

### ⭐⭐⭐⭐⭐ I love this charger!!!
*by H***R on December 6, 2011*

It simply works and works great!I have mine set up for two batteries, and that means the charger has four wires, a positive and negative for each battery, so my two battery system needed a "two bank" charger.Multiple battery installations require one pair of wires from the charger to each individual battery. Generally you can get one to four "banks" on a charger. Each one charges a 12 volt battery at ten amps.It is well sealed with epoxy, weather proof, temperature proof, and has two green leds, quite bright, that come on when the batteries are at 100% capacity. Two different leds show a red color while still charging, so it's hard to get mixed up.This unit drops amperage in predetermined levels several times during the charge, ending at a trickle charges after the batteries are fully charged. This prevents overcharging, overheating, and lowering of battery fluid levels from heat, during the charging process. It also has the feature that cleans the plates in the batteries, which helps the battery life a lot and extends their peak performance. I don't know how it works...I don't care, as long as it keeps those expensive marine batteries alive and happy.I wanted a battery charger smarter than I am, one I could plug and forget, even during rain, wind, heat of summer, to below freezing temperatures, and that's what I got. It has worked flawlessly.You can find cheaper charges, but eventually that savings will be lost on more frequent battery change-outs, or worse, battery failure out on the lake. Just buy the best, and forget about having to worry whether it's doing its job correctly, and having to run out and undo the leads when the battery is full, to avoid overcharging.I am impressed with the fact that this charger has a programmed chip inside to calculate, control, and vary the charging cycle amperage to accommodate the state of each individual battery. While it's best to use batteries with the same amp hours of capacity, some of us can't go out and drop over a hundred dollars on a new battery just to match capacities. I've mixed 90 amp hour and 115 amp hour batteries, and have had no problems whatsoever with this "intelligent" charger.I'd recommend this charger. I'm very happy, and trust it to perform without fault for as long as I have it. It's already been through deluge rainfalls several times without fail, high wind conditions, and cold nights. It simply waits there for the battery to indicate its needs, then it comes to life.It's worth every penny! The features can't be ignored.

### ⭐⭐⭐⭐⭐ Simple and does it's job.  Noco knows it stuff!!!
*by B***K on December 18, 2011*

I put a 20 amp 2 bank charger on my Mako after my old unit failed to charge properly. I did quite a bit of research before purchasing and found the reviews to be very helpful. I watched the unit very carefully with my voltmeter for the first few weeks and it has continued to perform flawlessly. This may be the best on board charger I have ever owned. The guys at NOCO built a product that is as simple to install as hooking up a few wires and plug it in and it does the rest. Green light is charged battery and red light is charging. The Genius has multistage charging typically found in much more expensive units. The quality is fantastic, fully sealed for marine environments and size is smaller than most other units of equal amps. I can only say thanks to NOCO. I have never taking the time to review a product and felt compelled to review this unit and as an added bonus it is made in the USA.

### ⭐⭐⭐⭐⭐ Unconventional charger for my scissor lift... it works!
*by S***E on April 21, 2018*

Retrofitting my scissor lift was easy with this replacement battery charger which took about 1/5th the space the original on board charger did. It keeps the batteries charged up properly and I never have a problem with the lift as I used to. Works well! I'm satisfied and would buy again.NOTE: If you appreciated this review please give it a “thumbs up/like” your helping me to continue to give honest/unbiased insight into products I’ve used and you may have questions about. Interested in a product but don't know enough about it and would like it reviewed? Please let me know and I'll see what I can do... Thank you 🙏

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-13*