---
product_id: 168179439
title: "GENIUS2D: 2A 12V Smart Onboard Battery Charger - Direct-Mount Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid Batteries"
brand: "noco"
price: "2424010₫"
currency: VND
in_stock: true
reviews_count: 9
category: "Noco"
url: https://www.desertcart.vn/products/168179439-genius2d-2a-12v-smart-onboard-battery-charger-direct-mount-automatic
store_origin: VN
region: Vietnam
---

# 2A smart charging power Temp-compensated precision charging Direct-mount snap-fit bracket GENIUS2D: 2A 12V Smart Onboard Battery Charger - Direct-Mount Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid Batteries

**Brand:** noco
**Price:** 2424010₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Genius-level battery care, always ready when you are.

## Quick Answers

- **What is this?** GENIUS2D: 2A 12V Smart Onboard Battery Charger - Direct-Mount Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid Batteries by noco
- **How much does it cost?** 2424010₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/168179439-genius2d-2a-12v-smart-onboard-battery-charger-direct-mount-automatic)

## 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

- • **Direct-Mount Design:** Secure, hassle-free installation under the hood with durable snap-fit bracket and self-tapping screws.
- • **Temperature Adaptive:** Integrated thermal sensor adjusts charging to prevent overcharge or undercharge in any climate.
- • **Revives Dead Batteries:** Force Mode charges batteries down to zero volts, restoring even deeply discharged cells.
- • **Smart 2A Charging Power:** Effortlessly charges and maintains 12V lead-acid batteries up to 40Ah with precision.
- • **Maintenance-Free Peace of Mind:** Leave connected indefinitely with automatic desulfation and overcharge protection for extended battery life.

## Overview

The NOCO GENIUS2D is a compact, direct-mount 2A smart charger designed for 12V lead-acid batteries including AGM, gel, SLA, and flooded types. It features temperature-compensated charging, Force Mode for dead batteries, and automatic desulfation to restore battery health. With easy under-hood installation and a 3-year warranty, it’s the ultimate plug-and-forget solution for maintaining and extending battery life across cars, trucks, RVs, marine, and more.

## Description

The GENIUS2D is the ultimate direct-mount onboard battery charger, designed for under-the-hood charging. It acts as a battery charger, maintainer, trickle charger, and desulfator, making it the perfect solution for 12-volt lead-acid batteries (up to 40 amp-hours), including AGM, gel, SLA, VRLA, flooded, maintenance-free, deep-cycle, marine, and RV applications. It is compatible with a vast array of vehicles, such as cars, automobiles, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, pickups, classic cars, and more, including automotive brands like BMW, Mercedes-Benz, Porsche, Bentley, Maserati, Lexus, Audi, Ford, Chevrolet, Corvette, Cadillac, Prius, Toyota, Subaru, Nissan as well as lawn and garden vehicles such as John Deere, Kubota, Toro and more. With its rugged snap-fit mounting bracket and truss-head self-tapping screws, installation is secure and effortless on most surfaces. The GENIUS2D can charge batteries as low as 1 volt and even offers Force Mode to manually charge completely dead batteries (as low as zero volts). Its advanced monitoring system keeps your battery fully charged without the risk of overcharging, while precision pulse charging reverses sulfation and acid stratification, restoring battery health and extending performance. The package includes a 2A onboard charger (120-240VAC), 24-inch AC and DC cables with eyelet terminals, a mounting bracket, screws, and is backed by a three-year warranty. Proudly designed in the USA, the GENIUS2D makes battery maintenance simple, reliable, and hassle-free.

Review: Great product at a reasonable price - Installed on a Ford Flex that is not driven much. Always needing charged. This product worked great. Just unplug and go. Battery stays charged and saves may battery and less work from the alternator.
Review: Keeps Batteries Charged Eliminates Inconvenience And Aggravation - Few have the experience with batteries and charging systems that I have. I'm 68 years old and a retired professional mechanic who SPECIALIZED in batteries, starters, alternators and electrical systems. This is what I did for a living and managed a specialty battery store then my own shop that sold virtually every battery for vehicles, diagnosed and installed all related charging and starting system parts. The number one cause of alternator failure is a LOW BATTERY. The alternator is NOT A BATTERY CHARGER. It will not charge up a discharged low battery. Many many folks have heard to jump start a dead battery and let it run or drive the vehicle and it will charge up. I will NOT and puts only a small surface charge on the battery. Essentially the battery is 99% discharged. I have seven vehicles and only one doesn't have a maintainer on it. That vehicle is a non-computerized F-100 Ford. However, my Winnebago RV, 2023 ATV, Honda Sabre M/C, Honda Fit, Ford Ranger and my Dodge Caravan all have maintainers on them. Computerized vehicles that are not used daily that sit for any amount of time get low on charge. That's a fact. As a professional, I can tell you that if you want to do yourself a HUGE favor, use charger maintainers. I use the Noco Genius 1 on many things I own and this Genius 2 now just installed on my Honda Fit. Little is worse than going out to a low or dead batteries. Just as bad is starting a car with a low battery then driving it. It's very bad on the charging system and related components. These Noco products feature wide compatibility, are highly functional and are very simple to use. It really is a plug in and forget product that is highly useful. You just have to remember to disconnect it when you use the vehicle.

## Features

- MEET THE GENIUS2D — A direct-mount onboard battery charger for an under-the-hood battery charging. It's the all-in-one charging solution - battery charger, battery maintainer, trickle charger, plus desulfator.
- DO MORE WITH GENIUS — Designed for 12-volt lead-acid (AGM, Gel, SLA, VRLA) batteries, including flooded, maintenance-free, deep-cycle, marine and RV batteries.
- DIRECT MOUNT — Securely attaches near the battery using a durable snap-fit mounting bracket and installs easily into most surfaces with truss-head self-tapping screws for a hassle-free, reliable setup.
- ENJOY PRECISION CHARGING — An integrated thermal sensor dynamically adjusts the charge based on ambient temperature, preventing overcharging in hot weather and undercharging in cold, ensuring optimal battery performance.
- CHARGE DEAD BATTERIES — Charge batteries from as low as 1 volt, or use Force Mode to manually charge completely dead batteries down to zero volts. Perfect for recovering deeply discharged or neglected batteries.
- BEYOND MAINTENANCE — Keep your battery fully charged without worrying about overcharging. Our smart charger constantly monitors the battery, allowing you to leave it connected safely - indefinitely - for worry-free maintenance.
- RESTORE YOUR BATTERY — Precision pulse charging automatically detects and reverses battery sulfation and acid stratification, restoring your battery's health for improved performance and extended lifespan.
- WHAT'S IN THE BOX — Includes a 2A onboard charger, 24-inch AC cable, 24-inch DC cable with eyelet terminals, mounting bracket, screws, and a 3-year warranty. Proudly designed in the USA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W3QSMF9 |
| Amperage | 2 Amps |
| Battery Charge Time | 40 Hours |
| Best Sellers Rank | #535 in Automotive ( See Top 100 in Automotive ) #5 in Battery Chargers |
| Brand | NOCO |
| Built-In Media | 3-Year Limited Warranty, Battery Charger User Guide, GENIUS2D 2A Direct-Mount Smart Battery Charger and Battery Maintainer With Integrated Eyelet Terminals |
| Color | Black |
| Connector Type Used on Cable | eyelet terminals |
| Current Rating | 2 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (10,598) |
| EU Spare Part Availability Duration | 3 Years |
| Global Trade Identification Number | 00046221180138 |
| Input Voltage | 120 Volts |
| Item Dimensions D x W x H | 3.47"D x 3.43"W x 6.5"H |
| Item Type Name | NOCO GENIUS2D, 2A Direct-Mount Onboard Car Battery Charger, 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Marine, ATV, Truck and Deep Cycle Batteries |
| Item Weight | 0.73 Pounds |
| Manufacturer | NOCO |
| Mfr Part Number | GENIUS2D |
| Model Number | GENIUS2D |
| Output Voltage | 12 Volts |
| Specification Met | CEC, FCC, UL |
| UPC | 046221180138 |
| Unit Count | 1.0 Count |
| Warranty Description | 3-Year Limited Warranty |

## Product Details

- **Brand:** NOCO
- **Color:** Black
- **Item Weight:** 0.73 Pounds
- **Output Voltage:** 12 Volts
- **Product Dimensions:** 3.47"D x 3.43"W x 6.5"H

## Images

![GENIUS2D: 2A 12V Smart Onboard Battery Charger - Direct-Mount Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid Batteries - Image 1](https://m.media-amazon.com/images/I/81Q6Ag04oFL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this water proof?**
A: The GENIUS2D is water resistant with a rating of IP65.

**Q: Does charger retain setting if power is lost then restored**
A: First I’m not sure.  But I’m 99% sure the loss of power has no effect at all. I base this on the fact that there’s no on or off button on the unit.(no settings) It only works or doesn’t work if it’s plugged in or unplugged. So my answer is their are no settings. So if you have power it works if you don’t it doesn’t. There is a cool feature it monitors it’s invioronent if it’s to hot it will not turn on.

**Q: will this work for motorcycle batteries?**
A: Yes; it works for my motorcycle, and the device is tiny enough to hide in a saddlebag.

**Q: My battery is in the trunk,,can I connect it to the jump points under the hood instead of directly to the battery in the trunk?**
A: Battery is in the trunk.  That must be an European vehicle.  Anyway, as long as you can securely tie the red and black eye hook of the charger to the jump points under the hood.  I have two cars with battery in the trunk.  What I did was one of vehicle I connect the NOCO charger 5-AMP, NOCO GENIUS GEN5X1 directly to the battery and on the other vehicle I use a portable NOCO 10-AMP, NOCO GENIUS10 charger to the jump points under the hood.  Good luck

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product at a reasonable price
*by M***L on March 21, 2026*

Installed on a Ford Flex that is not driven much. Always needing charged. This product worked great. Just unplug and go. Battery stays charged and saves may battery and less work from the alternator.

### ⭐⭐⭐⭐⭐ Keeps Batteries Charged Eliminates Inconvenience And Aggravation
*by M***E on January 5, 2026*

Few have the experience with batteries and charging systems that I have. I'm 68 years old and a retired professional mechanic who SPECIALIZED in batteries, starters, alternators and electrical systems. This is what I did for a living and managed a specialty battery store then my own shop that sold virtually every battery for vehicles, diagnosed and installed all related charging and starting system parts. The number one cause of alternator failure is a LOW BATTERY. The alternator is NOT A BATTERY CHARGER. It will not charge up a discharged low battery. Many many folks have heard to jump start a dead battery and let it run or drive the vehicle and it will charge up. I will NOT and puts only a small surface charge on the battery. Essentially the battery is 99% discharged. I have seven vehicles and only one doesn't have a maintainer on it. That vehicle is a non-computerized F-100 Ford. However, my Winnebago RV, 2023 ATV, Honda Sabre M/C, Honda Fit, Ford Ranger and my Dodge Caravan all have maintainers on them. Computerized vehicles that are not used daily that sit for any amount of time get low on charge. That's a fact. As a professional, I can tell you that if you want to do yourself a HUGE favor, use charger maintainers. I use the Noco Genius 1 on many things I own and this Genius 2 now just installed on my Honda Fit. Little is worse than going out to a low or dead batteries. Just as bad is starting a car with a low battery then driving it. It's very bad on the charging system and related components. These Noco products feature wide compatibility, are highly functional and are very simple to use. It really is a plug in and forget product that is highly useful. You just have to remember to disconnect it when you use the vehicle.

### ⭐⭐⭐⭐⭐ Seems to work very well. Good charger/maintainer and restorer as well.
*by J***A on December 30, 2022*

I got this partially because I need a SLA charger and maintainer but a little bit also because of it restoration function. Some newer charger/maintainers like this also have the ability to apply a pulse that can help break up crystalization inside the battery. While this will not bring an old or damaged battery back to a new state, it does help with things like when a battery is allowed to discharge too far at least once but not significantly damaged otherwise. I didn't know for sure if it would help with my own car's battery, but decided to try it anyway. It actually did indeed seem to help. Before using this it would only last a few minutes with the radio powered on after the car was shut off before it would shut it down due to low voltage. Now it lasts about 30 minutes. This also translates to holding up much better when sitting over time. This is not magic, so it is very limited in what it is able to do (more serious damage may not even be repairable short of basically rebuilding the battery,) but in cases of one of the more common minor causes of SLA battery capacity loss it does indeed help. As for the actual charging and maintenance functions, these seem to work quite well. It's only a 2A maximum charge rate (it lowers twice in later stages of the charge process) so not well suited to large batteries such as those of a car except as a maintainer (which needs very little actual current,) but will do in a pinch if you have the time (I believe it listed 60 hours as the time required to 100% fully charge a car battery -- although it will likely crank in much less time than that.) You will probably want one of the larger ones for those. However, it does have the advantage of being able to safely work on practically any SLA battery you can reasonably throw at it -- provided you can spare the time for a larger battery. I am also using this to maintain (and hopefully restore) a much smaller battery and so far it seems to be working just fine. I'm not clear on the difference between this one and the 2D model. This one also comes with a mount if you would like to more permanently mount it (such as inside your car.) Interestingly they seem to have made the alligator clips that come with it have screw-mounted rings that can be removed for permanent installation at the terminal screws. This way you don't need a separate set of connectors for each as the 2D model did. So this is an option for those who need to do this.

## Frequently Bought Together

- NOCO GENIUS2D, 2A Direct-Mount Onboard Car Battery Charger, 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Marine, ATV, Truck and Deep Cycle Batteries
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-23*