GENIUS2X2: 4A 2-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium

The NOCO GENIUS2X2 has been an excellent addition to my garage. Being able to charge and maintain two batteries at the same time is a huge convenience, especially if you have multiple vehicles or seasonal equipment. Each bank operates independently, so you can connect different batteries without worrying about interference. Setup was straightforward, and the included cables and clamps feel high quality. The smart charging features are where this unit really stands out. The temperature compensation works exactly as advertised, adjusting automatically based on ambient conditions, which gives confidence when leaving it connected long-term. I’ve used it in both cold and warmer conditions with consistent results. One of the most impressive features is its ability to recover deeply discharged batteries. I successfully brought back a battery that I assumed was beyond saving, and the desulfation function seems to have genuinely improved performance afterward. It’s reassuring to know the charger actively monitors the battery and prevents overcharging, making it safe for indefinite maintenance. Overall, this is a well-designed, professional-grade charger that delivers on its claims. If you need a dependable two-bank charger for cars, motorcycles, lawn equipment, or marine batteries, the GENIUS2X2 is absolutely worth the price.

Fantastic product. This works especially well if you have a dual battery setup and you no longer have to remove the terminals to individually charge each battery insuring they get the proper charge. Easy to read battery status. I have not noticed any heat coming off of the unit or noise even with both charging operations in use. Also works to dissimilar batteries in a vehicle i.e. Lead acid-Lithium as you select the type of battery you have to be charged. The extensions are enough to keep two vehicles parked side by side in a garage/outside charged and topped off. Not only works well to recondition and charge a dead battery but is a maintainer you can leave on the battery 24/7 This is one of the best chargers I have ever purchased and it gets a lot of use with all of my vehicles especially in cold harsh environments. I have a NOCO single charger that I really like but this is now the one that gets the most use. Well worth the purchase.

I have a big stupid truck in my driveway that I barely drive anymore. It’s a diesel with two batteries. When I do need it, the batteries are usually dead from sitting so long with a minuscule power drain. I put the NOCO 2-bank charger on it, my batteries recharged, and I leave it float charging until I need the truck again. The display ensures your batteries are charging, what state of charge, and when charging is finished. Elegant solution. Much simpler than dragging out the shop charger and having the hood open for a day. The car collector guy down the street swears by NOCO. Add me to the list of fans.

Works great for my 24' 3500 silverado duramax. The dual battery chargers are connected to each of the batteries and and I opted for the optional 110v plug that I mounted in the plastic shroud near the front bumper. I just plug the truck into and come back to fully charged batteries. Im hoping that by maintaining the truck batteries this way they'll last longer. Batteries are spendy, diesel truck batteries are 2x the cost, if i get a year or two extra life out of them becuase of this ill be stoked.

I love this charger. It’s able to keep both of my AGM batteries at full charge on my Ram 2500. The cords are nice and long so I can leave my truck on charge in the driveway.

Works good but not water proof

Excellent option for my Electric Boat. It’s sturdy, reasonably priced and was easy to install. I’m happy about its performance thus far.

Great product. I rarely give out 5 stars. I have 3 cars and dont drive often so keep two of the cars on the smart charger. This is an advanced trickle charger with the ability to recover a dead battery by delivering strong pulses of energy. The charger has good heat level. Small in size but very powerful. Easy to use. comes with cables , clamps. I also purchased cables to attach to my batteries so I dont have to pop the hood, just a quick disconnect.

Universal mc charger , does it all 2 at a time = ’nuff said 🤙

Jamais déçu par ce produit! J’en avait déjà un pour une seule connexion et il m’en fallait un second det mon choix c’est porté vers cette marque ! Très bien 👍

Highly recommend

First Impressions: I’ve been using the NOCO GENIUS2X2 for my ZX-6R and XT1200Z, and it’s been a game-changer for battery maintenance. This smart charger is compact yet powerful, and the ability to charge two bikes simultaneously is fantastic. It’s easy to use and works flawlessly on both 6V and 12V batteries, which is perfect for my two different bikes. Design and Build Quality: The NOCO GENIUS2X2 is well-designed with a sleek, modern look. It’s lightweight, which makes it easy to move around, and the build quality is solid, so I know it’s durable. The LED indicators show the charging progress, and the charger itself feels robust enough to handle outdoor use if needed. Ease of Use: Using the charger is incredibly simple. Just connect the clamps to the battery terminals, plug it in, and the charger automatically detects the battery type and adjusts accordingly. The smart charging technology ensures that my bikes’ batteries are charged safely without overcharging, and I love that I can leave it plugged in without worrying about damaging the battery. It also acts as a maintainer, keeping the batteries in top condition when not in use. Performance: This charger works great for my bikes. The 2A per bank ensures that both batteries charge properly without taking too long, and I can always rely on them being topped up when I need to ride. It’s also quiet and doesn’t make any loud noises during operation, which is great for keeping it in the garage. It charges and maintains the batteries efficiently, and I’ve noticed that both bikes are always ready to go when I need them. Value for Money: For the price, the NOCO GENIUS2X2 is an excellent investment. The ability to charge two bikes at once, the smart charging features, and the compact design make it a solid value for any rider who wants to keep their bikes in top shape without worrying about their batteries going flat. It’s definitely worth the investment. Pros: ✔ Charge two bikes simultaneously with independent banks ✔ Smart charging adjusts to 6V or 12V battery types ✔ Battery maintainer keeps bikes ready to ride ✔ Compact, lightweight design ✔ Reliable, quiet operation Cons: ✖ Takes up a bit of space if you don’t have room for both bikes and charger in one spot ✖ The price might be a little higher than basic chargers, but the performance justifies it Final Thoughts: The NOCO GENIUS2X2 has been an excellent charger for both my ZX-6R and XT1200Z. It’s reliable, efficient, and easy to use, keeping both batteries charged and maintained. If you’re looking for a smart charger to keep your motorcycles in top condition, this is a great choice.

Das Gerät benutze ich um auf einem Segelboot sowohl die Starterbatterie als auch die Versorgungsbatterie zu laden bzw. zu erhalten. Am Gerät fest angeschlossen ist eine 80 AH Nassbatterie und ein 100 AH Gelbatterie. Für die Erhaltung/Ladung der Starterbatterie ist das Gerät absolut ausreichend, ich brauche die Staterbatterie nur um den Diesel meines Seglbootes zu starten. Mit dem Gerät ist die Starterbatterie jederzeit voll geladen. Wenn ich die Versorgerbatterie (100 AH Gel) während eines Tages auf dem Wasser sehr beansprucht habe, also ca. 75 AH Stunden entnommen habe, dann läd das Gerät sie bei 2 A Ladestrom naturgemäß über Nacht im Hafen nicht vollständig. Für diesen seltenen Fall habe ich noch ein stärkeres Ctek an Bord. Ansonsten ist das Gerät fest verbaut, die Batterien sind fest angeschlossen und ich muss mir keine Gedanken um etwas machen. Die Verarbeitungsqualität , Gehäuse und Zubehör, ist deutlich besser als bei den CteK Geräten die ich besitze. Ich kann das Gerät für jemanden der gleichzeitig 2 Btterien laden/erhalten will und nicht auf hohe Ladeströme angewiesen ist nur empfehlen.