NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

(10 customer reviews)

Listed Price: $29.95

Meet the GENIUS1 – Similar to our G750, just better. It’s 35% smaller and delivers 35% more power. It’s the all-in-one solution – battery charger, battery maintainer, trickle charger, plus battery desulfator.
Do more with Genius – Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
Enjoy precision charging – An integrated 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 – Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
Restore your battery – Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
Beyond maintenance – It’s not just a trickle charger, it’s an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use – 24/7 – with zero overcharge.
Compatible with all types of vehicles – charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

SKU: B07W46BX31 Categories: , Tag:
Brand NOCO


NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger

NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger

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Additional information




Item Weight

15.2 ounces

Product Dimensions

3.43 x 4.02 x 6.73 inches


Item model number




Manufacturer Part Number


Cover Included

3-Year Limited Warranty, Battery Charger User Guide, GENIUS1 1A Smart Battery Charger and Battery Maintainer, Needle-Nose Battery Clamps With Integrated Eyelet Terminals

Special Features

Spark-Proof and Reverse Polarity Protection, Force Mode For Manual Battery Charging, Battery Maintainer, Trickle Charger And Battery Desulfator, Battery Charger For Cars, Motorcycles, ATV, And Lawnmowers, Temperature Compensation For Accurate Recharging, IP65 Ingress Protection



Date First Available

November 18, 2019

10 reviews for NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, Trickle Charger, And Battery Desulfator With Temperature Compensation

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    I used this battery charger to keep my car battery always full especially during pandemic because I need to work from home so I don’t drive every day. I realized that my car simply sitting in the garage for two months so this battery maintainer is capable to deliver high current on demand and offers a relatively service to keep the battery in charged. So now I feel that I have saved myself $90 for not needing to replace a new battery.When it comes to automotive products and battery chargers, NOCO is a well-known brand that offers several products in a different league of their own. Since 1914, the company has been a trusted name in many mechanic garages thanks to the product line’s durability and resilience. Many car chargers tend to be bulky and difficult to move around, making it even more difficult to use with multiple vehicles. The charger boasts some surprising abilities to bring near-dead batteries that you’d normally replace back to life again. For standard 12-volt batteries, it does a good job of intelligently reading and assessing the status of the battery to apply the correct settings for the best charge possible.A fully automatic car 12 Volt car charger that is lightweight and compact and simple to use. This NOCO car battery charger is so much more than a trickle charger. It is ready to go whether it be your car, bike, ATV, RV, golf cart or any other similarly operated equipment such as generators. It has few stages to its charging process, initialization, bulk and absorption mode and float or maintenance mode. Once it detects that the battery is fully charged, it will switch to float or maintenance voltage and maintain your car battery for you, should t it fall again, it will resume. They are suitable for use on 6 and 12 volt AGM, GEL, WET and lithium types and are the perfect product for the professional as well as the individual home user. Red and green indicator lights let you know the status. It also includes battery ring terminals and alligator clips for easy hook up to your battery.It will monitor you’re their life and switch between modes going from charging mode to float or maintenance mode once your battery is fully charged thanks to its high-frequency smart technology. Built-in circuit protection protects your battery from overcharging, reverse polarity or short circuit. An intelligent offering that will work for both 6 volt and 12 volt and maintain them once full. It will work for lead-acid ones up to 30 amp-hours and it will work twice as fast as a standard charger and if need be repair damaged ones.They are impact, UV and water-resistant and will mount to all AC outlets. I used it with AXTRA 8-outlet power strip because the 9-foot power cord is very helpful for the battery charger to reach the battery. It offers spark-proof technology and reverse polarity as well as overcharge protection for your peace of mind as you stay connected all the time. The LED indicators will indicate the status of your battery even when in maintenance mode.

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    J. Shao

    I have a car that doesn’t get drive often. Hopefully this help maintain the battery, and is ready for the times I decide the drive the car.

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    Definitely better then the old out of date battery tender brand. Works great

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    Dale Bellantoni

    Great product, works great, small and very well made!!!

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    Oliver Y

    So this review is based off of 2 days of use. So this review may need to be revisited in a few months. So for $30 (as of may 3), this seems to be a solid value, has several modes, I do not have a need for the other modes but it’s a nice option for a basic charger. This would most likely be able to charge 90% of automobiles and bikes.Simple package, box with the main charger, clamp leads, and a manual. The manual is great for knowing the basic functions and led indicators (flashing vs solid).My car battery was dead when I received this unit (not enough power to turn over the starter) but it had enough power a week ago. And took 1.5 days to get the charger from flashing red (50-75% charge) to a solid green light (100% charge). The instructions said you can keep the charger on the car indefinitely and I check the status once a day or so and in the instructions said 18-24 hours to charger at 1amp but I think it might be a little slower than what is printed. I have the unit hooked up to the battery with the terminals hooked up to the car, I couldn’t find a definite site that says to unhook your car battery for long term storage or short term storage either.Side note, this unit appears to be very weather sealed were the charger and the clamps connect there is a weatherseal and the unit is all plastic sealed. I placed this entire unit under the hood and have kept the hood shut so not water should be able to get to the unit. And the electrical recepticle is on a GFCI.

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    W. C. Greer

    I have a truck that mostly sits in the garage. Every time I need to back it out of the garage, the battery is dead.I know that just sitting isn’t good for batteries, not to mention this battery is several years old.Now keep in mind, this is a large amp battery for a SUV, which was so dead, a turn of the key and I didn’t even get lights on the dash. I stuck this little charger on it and it took a day and a half, but it charged completely. Ok, now I’m beginning to get a tad impressed.I have two of those old type chargers, you know the ones that after a while you can hear the acid boiling inside the battery, and the battery is getting really hot… you know the chargers that tell you not to leave it on your battery for any extended period of time as this might (will) damage the battery (possibly even start a fire). Well… no more.I’m a total convert now to using smart chargers, and this one seems especially good. I really hope I don’t find some little something that breaks 6 months from now, cause I really like this charger! It seems very well designed and made and most of all, it works great.The only negative I can find, it has a single button to select one of several charging modes, and LED’s to indicate which option you have chosen, and those LED’s are pretty much self explanatory, as well as an advanced mode where you have to push and hold the single button to enter advanced charging mode. For example, if your battery is so bad, the charger cannot detect there is even a battery hooked up, you can tell it to go ahead and start charging anyway which is a really nice feature. As another reviewer mentioned, when you need to use some of the more advanced functions, if you’ve lost the booklet, well… good luck. The multi-language booklet briefly explains all of the options, what the LED’s mean, and that’s pretty much it, verbose it isn’t..It comes in a really nice packaging, like you’re really getting something ( and you are), the unit itself seems well made and thought out, you would think a bit more of an effort would have been put into the manual.But, perhaps the product speaks for itself… and it does. And, after all most users will hook it up to their 12 volt car/boat/motorcyle battery, plug it in, select the regular 12v battery option, and that’s all most will ever need. Once the battery is charged completely, the charger senses that, and switches automatically to just maintaining the battery. If you loose power while charging (or maintaining), this charger just picks up right where it left off, so there is no worries about pushing buttons or selecting modes, it knows what you were doing before, and starts right back up with doing it again.Am I glad I got it: YesWould I buy it again: Yes.

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    I received it very quick and put it to use right away. Charged my 12v wet cell battery great. Took a little while due to battery was very drained. It charged all the way to 75% and then started to do the maintenance charge which im sure took a while. I went to bed and woke the next morning to find the status led was solid green. So far this little charger is great. One thing i would strongly recommend is to take a pic or dont loose your owners manual. This show what the status of the led and what it doing. It also show how to select different batteries or get into different modes. Since this model is so new, i cant find the owners manual anywhere online. (yes, I lost the manual) Other then my failure to keep the manual, product work great and does exactly what it designed to do. I currently have it working on my 6v 240ah battery and it seems to be doing great.

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    B. Bum

    I left the key for my Vespa GTS 300 in the “ON” position, totally draining the battery. Sad part, I know so very little about mechanics, never had an interest. But i decided to take the risk. Got this little monster charger, let it charge overnight, and was so happy to see the RED FLASHING had changed to GREEN and had a FULL CHARGE indicator. Cost was half the price of a commercial battery 20 miles away from me and 20 miles back to me. As with other customers I was super impressed with the packaging, now I am super impressed with the product. I have one minor issue, that is the size of the printing of instruction manual. Very hard for these tired old eyes to read. Bigger font, PLEASE! However I am not going to take a star off because this is a product well worth the money. Am going to recommend it to at least three other friends I know who may have a use for it!

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    Knowledgeable Buyer

    Recently I purchased a travel trailer. To charge and maintain the battery, I decided on this new NOCO charger. So far, I’m impressed with the quality of the item at what is a bargain compared to other similar chargers. As you can see from the picture, I used it on my deep cycle battery, and everything worked as described. I’ll give a long term impression after using this for a few seasons.

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    Very compact, full featured charger/maintainer which replaced the Noco G750, which I have two. Noco redesigned the Genius 1 to be smaller and, unlike the G750, it doesn’t block the other wall plug opening when in use. It’s width will cover (2) outlet openings on a power strip though, unless you use one designed with transformer plug spacing.Compared against the popular Battery Tender Jr, the Genius 1 is slightly more powerful at 1amp VS 0.75; adds dedicated charging modes for “regular” flooded or gell; AGM and Lithium-Ion batteries; automatic desulfation; automatic temperature compensation which changes the charging algorithm; and the ability to charge 6V systems too. It’s also California certified as an energy efficient charger – CA has newer standards exceeding Energy Star. Battery Tender Jr High Efficiency also meets these CA standards, but at a higher cost than the regular Jr.I’m using this as a maintainer on my Corvette, which is usually connected to a CTEK MUS 4.3. For maintenance charging, the CTEK 4.3 is overkill. I liked that this Noco has a dedicated AGM battery charging mode (charges and maintains at a higher voltage), which I need, and seems to keep up with the natural parasitic draw of the Corvette’s computers. I see the Noco switch into maintenance mode 1-2x per day for about 10 minutes, indicated by a slowly blinking green led. BTW, all display indicators are extremely bright – same experience with the Noco G750, you can easily see all indicators in direct sunlight.For around $30, this is a true bargain.

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