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Internet # 314914591

Model # GENIUS1

Store SKU # 1006572879

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GENIUS1,1-Amp Direct-Mount Onboard, 12V Charger, Maintainer and Battery Desulfator with Temperature Compensation

$29.95
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  • Features an integrated thermal sensor to prevent overcharging
  • Designed to charge dead batteries and extend battery life
  • Compact design facilitates ease of use
  • View More Details

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Product Details

About This Product

The GENIUS1, one of our most powerful, highest-performing, energy-efficient, and compact chargers yet. It's designed for all types of 6-Volt/12-Volt lead-acid batteries, including flooded, gel, AGM and other maintenance-free batteries. It features our all-new hyper-density technology making it the most compact, lightweight and energy efficient battery charger on the market, plus an integrated thermal sensor for improved battery life.

Highlights

  • Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before.
  • 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 dead 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 - Detects sulfation and acid stratification and restores lost performance for stronger engine starts and extended battery life.
  • Compatible with all types of vehicles - Charge and maintain cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, boats, classic cars, hot rods, and more - you name it.
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Product Information

Internet # 314914591

Model # GENIUS1

Store SKU # 1006572879

Additional Resources

Shop All NOCO

Specifications

Details

Amperage (A)

1 A

Pack Size

1

Returnable

90-Day

Questions & Answers

Does this work for a 2009 3500 series dodge diesel with dual batteries
ByOct 24, 2026
1 Answer | 
Answer This Question

Please contact NOCO Support directly on the NOCO website with a little more detail about your vehicle's batteries so that we may assist you.

By|Oct 26, 2026


    Does it charge car batteries?
    ByOct 22, 2026
    1 Answer | 
    Answer This Question

    Yes, the GENIUS10 is compatible with 12V and 6V Lead Acid and AGM batteries, as well as 12V Lithium Ion and Lithium Iron Phosphate (LiFePO4) batteries.

    By|Oct 26, 2026


      Can you use on car batteries
      ByAug 14, 2026
      1 Answer | 
      Answer This Question

      Yes, the GENIUS10 is designed for charging and maintaining 6V and 12V car batteries.

      By|Aug 17, 2026


        Is this the correct product to trickle charge the 12v battery on a 2026 Toyota Rav 4
        ByJul 23, 2026
        1 Answer | 
        Answer This Question

        Yes

        By|Jul 24, 2026


          12 volt battery went dry; added distilled h2o; will "5" recharge?
          ByJul 18, 2026
          1 Answer | 
          Answer This Question

          Yes, the GENIUS5 is capable of charging 12V Flooded Batteries.

          By|Jul 20, 2026


            I have a 2024 mercedes sprinter with RV buildout. Can I simply connect this to the charging posts under the hood and keep it plugged in as a trickle charger.
            ByJul 14, 2026
            1 Answer | 
            Answer This Question

            NOCO GENIUS Chargers require a direct connection to the battery in order to detect the battery and begin charging it. As long as the charging posts under the hood connect directly to the battery and no other vehicle electronics, this would work.

            By|Jul 15, 2026


              My 2026 Chevy Colorado‘s battery is dead. How do I use this Genesis 10 to get the most and quickest response from my dead battery
              ByJul 6, 2026
              2 Answers | 
              Answer This Question

              The GENIUS chargers need to be able to detect a battery before they start charging that battery, and they are only able to detect a battery that has 1V or more on it. If the charger is connected to a battery that is depleted below 1V, the charger won't detect that battery, and thus won't start charging it. In this case, the charger will just stay in Standby, and if you press the MODE button, you will not be able to select a charge mode. Force Mode is a feature that lets you override that, it forces the charger to start charging a battery that is depleted below 1V even though the GENIUS charger can't detect the battery. To put the GENIUS10 into Force Mode you would just press and hold the MODE button down for about seven (7) seconds. After that, all of the Mode LEDs will illuminate and begin flashing. You can then toggle through the modes as you normally would and select the appropriate charge mode for your battery. The selected charge mode will then operate under Force Mode for five (5) minutes, this is characterized by the selected mode and the percentage LEDs (starting with 25%) flashing back and forth. Once the 5 minutes are up, the charger will then return to standard charging and the selected mode will stop flashing and just go solid.

              By|Jul 8, 2026

                This is a slow battery charger what you need is a jump starter unit which can help you jump start the vehicle immediately and not wait for the battery to recharge.

                By|Jul 9, 2026


                Does it include a terminal harness?
                ByJun 20, 2026
                1 Answer | 
                Answer This Question

                The GENIUS2 comes with NOCO GC001 Clamps w/ Integrated Eyelets. The eyelets are connected to the clamps and can be accessed by simply unscrewing the clamps from the eyelets. The eyelets can then be mounted directly to the battery terminals.

                By|Jun 22, 2026


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                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 624 reviews
                  • 79% recommend this product
                  Filter by:
                  Showing 1-10 of 624 reviews
                  The device is really effective to charge several types of batteries. I draws only small amps from my lithium battery so I was able to charge and level up our engine battery in our RV which is cool, it comes with a fit to clip it on a wall if needed
                  by
                  Noco chargers are top notch. The cords are very long and easy reach any battery. I had this about 2 months and is keeping my truck's battery charge fully while in storage. The free next day shipping g from HD was great. I high recommend this product
                  by
                  After some research, I purchased the NocoGenius5 battery maintainer to service a new deep cycle marine/rv battery which serves as the house battery on my small camper. I've installed the maintainer in the camper to be able to recharge the battery when plugged into shore power or from a solar battery when boondocking. The unit works flawlessly so far and I'm pleased with my purchase. I'm considering purchasing a second for when I remove the battery in the winter and maintain it indoors.
                  by
                  This is my second Noco product. I purchased the Noco boost several years ago and the Genius recently. Both of them are easy to use and work perfectly every time.
                  by
                  This is the best Product you can not go wrong getting this works like a charm everytime at extremely accurate. I love my NOCO Genius Genius5.
                  by
                  What a cold winter and what a great device to have on hand. My truck and tractor sit unused for several days/ weeks at a time and of course the battery has a tendency to go dead. I had already used the Genius 10 on the truck with great results and then came the big snow and ice storm. Needing my tractor to clear off 400 feet driveway it would not start due to the single digit numbers. This is where the Genius 10 saved the day and allowed me enough charge over a 4 hour time span to start tractor. No more need for dragging out the jumper cables. Great job Noco,
                  by
                  Bought this to keep my batteries in good condition while I changed my alternator and did some other engine work. I have a large diesel truck and this unit has had no issue keeping up with the needs of my batteries. Looking forward to learning the extent of the capabilities of this unit while I continue to work on my truck in the winter.
                  by
                  Firstly, I was very impressed with the quality of the product, the heavy gauge cables and the copper clamps, lugs and even copper screws that attach the cables to the clamps. I removed the clamps by simply unscrewing the copper screws and attached the NOCO Genius1 permanently to the power and ground "jumper" terminals under the hood. to test the NOCO Genius1, I connected it to the battery on my Honda generator that I had not used for over a year, so the battery was almost completely dead (it has a motorcycle battery). I selected the "lead acid battery" function, the red light came on on the NOCO (indicating a low battery). I came back to check on it about four hours later. and voila! The NOCO now had a green light showing, I checked the battery voltage with a voltmeter and it was at 12.4 volts - perfect! I am buying four more NOCO Genius1's as I have two cars that sit for long periods, my neighbor has a car that sits while he goes on extended vacations and one of my sons has a motorcycle he rides every few months that always has a dead battery when he goes to use it. I chose the Genius1 because of it's 1 amp. charge rate will charge the batteries in my vehicles slowly which is better for long battery life. I don't need fast battery charging, otherwise I would recommend some of the higher amperage products from NOCO.
                  by
                  The Noco genius line of chargers are great chargers. I own a few of them and they are excellent chargers. My only complaint is they don't give you a digital display of the batteries voltage or charge but I am willing to give that option up for the quality of the charger that I get.
                  by
                  2 found this review helpful
                  Exceptional value for the money. Works as described. I like that has a very small footprint. I use it on my Jeep Wrangler that dosnt get driven often to keep the battery optimally charged.
                  by
                  • Verified Purchase
                  2 found this review helpful
                  Showing 1-10 of 624 reviews

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                  Product Snapshot

                  Ideal for customers who want precision charging, ensuring optimal battery health and performance.
                  Ideal for vehicle owners, this charger maintains 6V and 12V batteries at optimal capacity for peak performance.
                  Ideal for maintaining vehicle batteries , this charger features float mode for optimal charge levels and prevents overcharging . A great choice for keeping your car , RV , or boat battery topped off ..
                  Ideal for vehicle owners, this charger maintains 6V and 12V batteries for optimal performance. Featuring automatic voltage compensation and versatile connection options, it ensures efficient and hassle-free charging.

                  Charging Capacity

                  1 Amp
                  2 A
                  2 A
                  4 A

                  Battery Compatibility

                  6V/12V lead-acid (flooded, gel, AGM), lithium-ion
                  6-Volt and 12-Volt batteries
                  Lead-acid, lithium, AGM, and deep cycle batteries
                  6-Volt and 12-Volt batteries

                  Automatic Shutoff

                  Reverse Polarity Protection

                  Engine Start Function