Noco GENIUS2D 10A Fully-Automatic Smart Charger Review

Noco GENIUS2D, 10A Fully-Automatic Smart Charger

Cars often make our life easier. We certainly feel more comfortable owning a car when we don’t have problems to deal with. However, any problem with the car is both a financial burden and a frustrating situation. In the same way, doing the necessary maintenance to prevent the car from breaking down is a situation where you need to spare a separate expense and time.

Battery discharge is one of the minor problems you may encounter with your car. However, it will not strain you too much financially. You can easily charge and use it by buying yourself a battery charger. However, the quality of the battery charger you buy is important because they are not cheap, and you do not want to waste your money by purchasing a bad product. 

Reviews are essential when choosing a good product. In this article, we have reviewed Noco GENIUS2D Battery Charger for you. This product is small and direct-mount. For this reason, it is very convenient. You can understand how to use Noco GENIUS2D Battery Charger easily. Let’s look at this product together and see if it is worth buying. 

Brand Noco 
Item Dimensions (LxWxH) 5 x 2.3 x 1.5 inches
Battery Capacity  40Ah
Color Black
Input Voltage 120 Volts 
Item Weight 0.73 Pounds
Warranty 3-year limited
Pros Cons
Suitable for many battery types Insulation has low quality
Water-resistant It can suddenly stop working
It can be used the fix bad batteries Instructions are not very clear
Full automatic Only suitable for 12V batteries

Who Is Noco GENIUS2D Battery Charger For?

Noco GENIUS2D Battery Charger is a beneficial product for anyone who wants to charge their car battery easily. After purchasing this product, you can use it to charge different batteries. Also, since this product is direct-mount, you can use it by fixing it to a certain area. It is also easy to set up. You can easily find detailed information about the installation.

You can also see the status of your batteries. Afterward, it is possible to make your bad batteries usable. In addition, if you are looking for a small and compact product, the GENIUS2D Battery Charger will be very suitable. This product is resistant to the heat of areas where it can be mounted. For this reason, you can use it for a long time without any problems.

It is ideal for those who have to overcharge or under-charging problems due to weather conditions. It offers you the best charging. In addition, there is no problem, such as over-charging and ruining your battery when you leave it on the plug. It can even fix your bad batteries with this product. You can learn how to use Noco GENIUS2D Battery Charger pretty easily.

noco genius2d battery charger, box

Features of Noco GENIUS2D Battery Charger

Ease of Use 

Some people think the instructions are unclear, but you can still easily understand how to use Noco GENIUS2D Battery Charger. Since it has an all-in-one feature, it can be used as a battery charger, battery maintainer, trickle charger, and float charger. This product is automatic and provides convenience for everyone with its various features. Moreover, it has a detailed panel for information about the battery. 

You can see the charge level of the battery on the panel. If it is below 75%, the red light is on. Above 75%, you will see a pulsing green light. If it is fully charged, the light will be green. In addition, you can see when the battery is in bad condition, the charge is placed incorrectly, or the high voltage warning is from this panel. 

You can fix it because it has a direct-mount feature. It is not difficult to fix it. First, you need to fix the mounting bracket with the screw. You can do this with the help of a drill. You need to stick the mounting strap on this part. Then you can place the product inside the mounting bracket. It is that easy to mount where you want. 


Its outer power is 28W. It is pretty enough. The product can be used for flooded, gel, AGM, SLA, and VRLA batteries. But only suitable for 12-V ones. It will not be ideal for those with different voltages. For example, this product may be useless for you if you have a second vehicle with a 6V battery. You’d be better off choosing another one that will work in both.

It is very successful as a trickle charger. Some even say that it is one of the best trickle chargers on the market. It’s also a smart tool. Understands when and how much to charge. This prevents overcharging. The product can fix your overcharged batteries. It can charge different types of batteries as low as 1 volt.

You can also use it in winter. It does not lose its performance. With the remote start feature, you can start charging while you are away. You can use it whether your vehicle runs on gas or diesel. How fast the battery will charge depends on the state of the battery. Batteries in poor condition will take longer to charge. However, batteries in good condition will charge faster.

noco genius2d battery charger, ultra

Worth of Money 

The product has an average price. There are more expensive ones on the market, but this one is also not cheap. Still, if you are unwilling to pay for a new battery, you should spend at least this price. In addition, since you can use this product to charge different types of batteries, it will be a logical choice for you if it will be used for more than one car.

It can also be used in different climates. It prevents any charging problems related to hot or cold weather. It does not have any charging problem between -4 F and 104 F. Of course, if you live in a hotter or colder climate, the product will not suit you. It doesn’t take much effort to understand how to use Noco GENIUS2D Battery Charger, as it is fully automatic.

Apart from this, we cannot say it is entirely worth the money since there may be problems with some parts of the battery charger. Moreover, insulation has low quality, and it can cause hazardous situations. However, since it is not a very cheap product, we think it should provide complete safety to give you value for your money. However, there is no such thing as everyone will have a safety problem.


They are specially designed to operate under the most challenging conditions. It is resistant to the high temperature of the engine. All kinds of shock and vibration do not disturb its operation. It is also water resistant. It will not be damaged if it gets wet. However, we mentioned that some parts are not very high quality. Some users have encountered problems related to that. In this case, it won’t be easy to use.

In addition, some users mentioned that the product suddenly stops working after working very satisfactorily. It is not a common problem, but you can contact the company if you still have such a problem. The product has a 3-year limited warranty. This way, you can request the product to be replaced or repaired. Also, customer service is excellent so you won’t have a problem.

Stop working is not related to the frequency of use, as it turns out because some people stated that they encountered such a problem even though they used it very little. As we mentioned, it is not a common problem, and most buyers seem satisfied with the product. It can be used for a long time, even in different climatic conditions.


A battery charger will be fine if you don’t want to buy new batteries. Of course, there are many battery chargers, but to get maximum efficiency, it is necessary to pay attention to some features. We have evaluated the Noco GENIUS2D Battery Charger, and we wanted to assess the critical points and create an evaluation that will be useful for you.

You don’t have to worry about how to use Noco GENIUS2D Battery Charger since it is fully automatic. Suitable for different battery types. So it is better than the products you can only use on certain batteries. Thus, you can use it for different vehicles and continue to use it even if you buy a new car. Moreover, you will not experience overcharging.

This product works well at different temperatures. In general, we liked it apart from the negative experiences of some users. Since these are not common problems and can be solved by contacting the company, we did not dwell on them much. If you need a battery charger, this product is among the ones you can choose. Let’s take a look at the pros and cons. 

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
  • Meet the GENIUS2D - A direct-mount onboard battery charger for an under-the-hood battery charging. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
  • Do more with Genius - Designed for 12-volt sealed lead-acid automotive, marine, RV, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free batteries.
  • Direct Mount - Securely mounts nearby the battery with its rugged snap-fit mounting bracket and effortlessly installs into most materials with truss-head self-tapping screws.
  • Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
  • Charge dead batteries - Charge batteries as low as 1-volt, including flooded, gel, and AGM, as well as automotive, marine, and deep-cycle batteries.

Top Amazon Customer Comments

Joshua – ⭐⭐⭐⭐⭐

Review: 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.

Rob Myers – ⭐⭐⭐⭐⭐

Review: Bought this to maintain the NOCO NLP30 I installed in my 2022 Street Glide, and I’m glad I did. Once I plugged it in, it flashed red, indicating the battery had below a 75% charge. By the next morning, the light was solid green. The bike starts stronger than it ever has. These M8’s have very high cranking pressure, so it’s important to have sufficient CCA to turn them over; the NLP30 has 700+, over double the stock H-D battery.

Rob Myers – ⭐⭐⭐⭐⭐

Review: Works great, just install, plug in and relax, having to buy batteries is a huge financial burden especially when buying two (2) for a diesel truck this will take the guesswork out of the condition of your batteries.

Anthony T Andre – ⭐⭐⭐⭐⭐

Review: You to use to keep your battery for whatever you need like a generator or any kind of power equipment, tethered and ready to go when you need it

M. Sarp – ⭐⭐⭐⭐⭐

Review: Easy installation. Came with ring terminals on the cables making battery hookup fast. My 2017 RAM doesn’t go dead anymore!

Tom Baker – ⭐⭐⭐⭐⭐

Review: I have a 12v operated and solar maintained gate opener on my driveway. Recently we have had a month of zero sunshine! My solar charger couldn’t keep up with the holiday guest demands of the gate opening and closing. I purchased this battery maintainer and the NOCO through hull extension cord male plug. I mounted the through hull plug to the outside back wall of my gate control box. I mounted the maintainer on the inside of my control box. I hooked it all up and it works flawlessly and looks sanitary. This is not my first HOCO product, I have several. From the time it arrives at your door you will notice the quality right away by paying attention to their packaging. The quality starts with the packaging and doesn’t end. Do not waste your money anywhere else. If the specs of the NOCO product meet your needs, just buy it, even if the price is double the competition. Thank me later!

Ed – ⭐⭐⭐⭐⭐

Review: I now have 3 of these: one on my generator and one on each of my snowmobiles. They do a great job of making sure the battery will be charged when I need them.

Chris Kulak – ⭐⭐⭐⭐⭐

Review: Overall it’s a good product, I was alittle underwhelmed to see the power cord is so short. I would have liked it alittle longer for a cleaner install.

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