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  • NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium
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NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium

4.7 out of 5 stars 1,593 ratings

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Brand NOCO
Colour Black
Product Dimensions 14.5D x 25.1W x 27.4H Centimetres
Item weight 3.53 kg
Output voltage 12 Volts
Specification met CSA, FCC, UL
Input voltage 120 Volts
Charging time 40 Hours
Current rating 8 Amps
Global Trade Identification Number 00046221190434

About this item

  • MEET THE GENIUS2X4 — A four-bank battery charger for charging multiple batteries simultaneously. It's the all-in-one charging solution - battery charger, battery maintainer, trickle charger, plus desulfator - for four batteries.
  • DO MORE WITH GENIUS — Designed for 6-volt and 12-volt lead-acid (AGM, Gel, SLA, VRLA) and lithium-ion (LiFePO4) batteries, including flooded, maintenance-free, deep-cycle, marine and powersport batteries.
  • 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.
  • COMPATIBLE — Charges and maintains all types of vehicles, including cars, automobiles, motorcycles, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, classic cars, and more.
  • WHAT'S IN THE BOX — Includes a 8A four-bank charger, (4) 75-inch AC cables, (4) 21-inch battery clamps, and integrated eyelet terminals, (4) 10-foot DC extension cables, and a 3-year warranty. Proudly designed in the USA.

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This item: NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium
$329.99
Get it by Sunday, Aug 17
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Top Brand: NOCO

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From the manufacturer

NOCO, GENIUS2X4, 4-Bank, 8-Amp, Smart Charger, 6V, 12V, Battery Charger, Maintainer, Desulfator

GENIUS2X4

GENIUS2X2

GENIUS1

GENIUS2

GENIUS5

GENIUS10

Customer Reviews
4.7 out of 5 stars 1,593
4.7 out of 5 stars 3,365
4.6 out of 5 stars 54,570
4.6 out of 5 stars 16,643
4.7 out of 5 stars 18,589
4.6 out of 5 stars 18,538
Charging Current
8 Amps 4 Amps 1 Amp 2 Amps 5 Amps 10 Amps
Number of Banks
4 2 1 1 1 1
Battery Capacity
40Ah x 4 Banks 40Ah x 2 Banks 30Ah 40Ah 120Ah 230Ah
Output Power
30W x 4 Banks 30W x 2 Banks 15W 30W 75W 150W
12V Repair Mode
12V Supply Mode
6V AGM Mode

Product description

The GENIUS2X4 is the ultimate four-bank battery charger, designed to charge and maintain multiple batteries simultaneously with unmatched versatility and precision. As an all-in-one solution, it functions as a battery charger, maintainer, trickle charger, and desulfator for two 6-volt or 12-volt lead-acid and lithium-ion (LiFePO4) batteries (up to 40 amp-hours). Its advanced thermal sensor automatically adjusts charging based on ambient temperature, preventing overcharging in hot climates and undercharging in cold ones. The GENIUS2X4 can charge batteries from as low as 1 volt and offers a Force Mode for manual charging of completely dead batteries (as low as zero volts). Featuring smart monitoring, it ensures safe, indefinite connection for long-term battery maintenance, while precision pulse charging restores battery health by reversing sulfation and acid stratification. It is compatible with a vast array of vehicles, such as cars, automobiles, motorcycles, dirt bikes, scooters, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, snowmobiles, golf carts, classic cars,and more; including automotive brands like BMW, Mercedes-Benz, Porsche, Bentley, Maserati, Lexus, Audi, Ford, Chevrolet, Corvette, Cadillac, Prius, Toyota, Subaru, Nissan, powersport vehicles such as Harley-Davidson, Honda, Yamaha, Kawasaki, Ducati, Indian, KTM, Husqvarna, Vespa, Polaris, Seadoo, as well as lawn and garden vehicles such as John Deere, Kubota, Toro and more. The package includes a 8A four-bank charger (120-240VAC), four 75-inch AC cables (US, UK, EU, and AU), four 21-inch battery clamps with integrated eyelet terminals, four 10-foot DC extension cables, and a three-year warranty. Proudly designed in the USA, the GENIUS2X4 offers unparalleled performance and reliability for all your charging needs.

Product information

Technical Details

Manufacturer ‎NOCO
Place of Business ‎NOCO, 30339 Diamond Parkway, #102, Glenwillow, OH 44139 USA
Brand ‎NOCO
Model ‎GENIUS2X4
Product Dimensions ‎17.7 x 13.49 x 27.41 cm; 3.53 kg
Item model number ‎GENIUS2X4
Batteries ‎1 Unknown batteries required.
Is discontinued by manufacturer ‎No
Exterior ‎Painted
Manufacturer part number ‎GENIUS2X4
Special features ‎4-Bank Battery Maintainer, Trickle Charger And Battery Desulfator, Battery Charger For Cars, Motorcycles, ATV, And Lawnmowers, Force Mode For Manual Battery Charging, Spark-Proof and Reverse Polarity Protection, Temperature Compensation For Accurate Recharging
Item Weight ‎3.53 kg
Country of origin ‎China

Additional Information

ASIN B08FYS6CL8
Customer Reviews
4.7 out of 5 stars 1,593 ratings

4.7 out of 5 stars
鶹 Rank
Date First Available Aug. 16 2020

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NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium


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NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium
NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium
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Price$329.99$232.95$219.95$1,362.67$664.99$861.06
Delivery
Get it by Sunday, Aug 17
Get it by Sunday, Aug 17
Get it by Sunday, Aug 17
Get it by Sunday, Aug 17
Get it by Sunday, Aug 17
Get it by Sunday, Aug 17
Customer ratings
Sold by
output voltage
input voltage
battery charge time
specification met

Customer reviews

4.7 out of 5 stars
1,593 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers like the capacity, performance, and quality of the battery charger. They mention it's ideal for charging multiple batteries at once, works well with all wiring options included, and maintains the batteries year-round. Customers also appreciate the ease of use, saying it's easy to install and hook up.

13 customers mention "Capacity"13 positive0 negative

Customers like the capacity of the battery charger. They mention it's great, intelligent, and ideal for charging multiple batteries at the same time.

"Great charger." Read more

"Great trickle charger and maintainer. Good brand also" Read more

"...Great intelligent charger to charge 4 at the same time." Read more

"Absolutely amazing!! Can charge 4 batteries at once over the off seasons!!" Read more

13 customers mention "Quality"13 positive0 negative

Customers are satisfied with the quality of the battery charger. They mention it appears to be a quality item and a good brand.

"Good product. Works well." Read more

"Great trickle charger and maintainer. Good brand also" Read more

"Really good unit. Somehow it knows what your battery is and charges it accordingly...." Read more

"This is one excellent product! We have to keep 8 12 volt batteries ready for our own RV and our backups that we use when out on a service call...." Read more

12 customers mention "Performance"12 positive0 negative

Customers are satisfied with the performance of the battery charger. They mention it works well, has all wiring options included, and is absolutely amazing.

"Great system. Easy to use and works well" Read more

"Works great!..." Read more

"Works great with all wiring options included." Read more

"This product worked amazing for two years and then half of it stopped working. then had issues with other half which lead to batteries not working." Read more

11 customers mention "Battery compatibility"8 positive3 negative

Customers like the battery compatibility of the product. They mention it maintains the batteries year-round, keeps them charged all winter, and retests the battery every so often. Customers also say it works perfect for multiple batteries without having to organize individual chargers.

"Versatile for a wide range of battery types...." Read more

"...good quality RV battery, you can keep 4 of them conditioned and charged year round...." Read more

"This product worked amazing for two years and then half of it stopped working. then had issues with other half which lead to batteries not working." Read more

"Works perfect for multiple batteries without having to organize individual chargers." Read more

9 customers mention "Ease of use"9 positive0 negative

Customers like the ease of use of the battery charger. They mention it's easy to install, hook up, and trickle charge away.

"Great system. Easy to use and works well" Read more

"This is awesome. Helps save a bunch of your batteries. Hook them all up at once and trickle charge away. Very easy to use. Recommended for sure." Read more

"Extremely easy to use and set up, very good quality." Read more

"Easy to install and hook up. Will charge any battery and more importantly will tend a battery indefinitely...." Read more

So far so good
5 out of 5 stars
So far so good
Easy to use and charging 4 batteries at the same time. I charged 2x 6v golf cart batteries and 2x 12v car/truck batteries all at the same time without issue. I havent tried charging a Lion batteries yet(i dont have). So far it is working as it should be for me for almost a month now. Great intelligent charger to charge 4 at the same time.
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Top reviews from Canada

  • Reviewed in Canada on May 26, 2025
    Verified Purchase
    Works great with all wiring options included.
  • Reviewed in Canada on April 20, 2025
    Verified Purchase
    Good product. Works well.
  • Reviewed in Canada on January 31, 2025
    Verified Purchase
    Great system. Easy to use and works well
  • Reviewed in Canada on July 15, 2025
    Verified Purchase
    I called customer service as I was having difficulty with a couple of the charging ports, 鶹 offered me a 20% discount to keep it. After a few days of I managed to get all the ports working. I am just hoping the stay that way.
    I have always had amazing customer support experience and again 鶹 came through.

    One Word - AWESOME
  • Reviewed in Canada on November 26, 2024
    Verified Purchase
    Versatile for a wide range of battery types. Had the prior generation charger which died after about 6 years so hopefully this newer model will have better longevity.
  • Reviewed in Canada on March 8, 2025
    Verified Purchase
    It would be nice you have better instruction.
  • Reviewed in Canada on June 16, 2025
    Verified Purchase
    Excellent for keeping off season batteries on charge (snowmobile batteries in summer and ATV batteries in winter come off my machines and stay on the charger for the off season). I have revived several batteries that appeared to be dead but came back on charge after staying on the charger for several days. Had this for a couple of years now and very happy with the purchase.
  • Reviewed in Canada on March 2, 2025
    Verified Purchase
    Great trickle charger and maintainer. Good brand also

Top reviews from other countries

Translate all reviews to English
  • Marc Pierce
    5.0 out of 5 stars Very impressed!
    Reviewed in the United States on June 30, 2025
    Verified Purchase
    Bought this to maintain my batteries for the boat through winter, worked perfectly! Nice compact charger, I mounted it to my garage wall above the work bench, terminal clips are moderate to heavy duty and constructed well. NOCO makes good quality products at a decent price point which is affordable.
  • Ersen Güventürk
    5.0 out of 5 stars 10 numara 5 yıldız ürün
    Reviewed in Turkey on June 15, 2023
    Verified Purchase
    Ürün efsane. Çok beğendim tavsiye ederim…
    Report
  • FedeR
    5.0 out of 5 stars Ottimo caricatore
    Reviewed in Italy on July 12, 2024
    Verified Purchase
    Carica batterie professionale consigliato
    Customer image
    FedeR
    5.0 out of 5 stars
    Ottimo caricatore

    Reviewed in Italy on July 12, 2024
    Carica batterie professionale consigliato
    Images in this review
    Customer image
  • Norbert Dambmann
    5.0 out of 5 stars Einfach und genial
    Reviewed in Germany on December 19, 2024
    Verified Purchase
    Das Ladegerät ist in seiner Funktionalität und der Betriebssicherheit genial einfach.
    Habe vier verschiedene Batterien angeschlossen, das Gerät hat alle erkannt und geladen.
    es ist sein Geld wert und ich empfehle es ohne Einschränkung weiter.
  • Adolfo Cariolato
    5.0 out of 5 stars Great product
    Reviewed in Australia on June 11, 2024
    Verified Purchase
    It works very well , especially 1 charger to charge 4 batteries and maintain them

Product Summary: NOCO GENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium

From NOCO

4.7 out of 5 stars, 1,593 ratings

Customer reviews

200+ viewed in past month

Price

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About this Item

  • MEET THE GENIUS2X4 — A four-bank battery charger for charging multiple batteries simultaneously. It's the all-in-one charging solution - battery charger, battery maintainer, trickle charger, plus desulfator - for four batteries.
  • DO MORE WITH GENIUS — Designed for 6-volt and 12-volt lead-acid (AGM, Gel, SLA, VRLA) and lithium-ion (LiFePO4) batteries, including flooded, maintenance-free, deep-cycle, marine and powersport batteries.
  • 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.
  • COMPATIBLE — Charges and maintains all types of vehicles, including cars, automobiles, motorcycles, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, classic cars, and more.
  • WHAT'S IN THE BOX — Includes a 8A four-bank charger, (4) 75-inch AC cables, (4) 21-inch battery clamps, and integrated eyelet terminals, (4) 10-foot DC extension cables, and a 3-year warranty. Proudly designed in the USA.

Product description

The GENIUS2X4 is the ultimate four-bank battery charger, designed to charge and maintain multiple batteries simultaneously with unmatched versatility and precision. As an all-in-one solution, it functions as a battery charger, maintainer, trickle charger, and desulfator for two 6-volt or 12-volt lead-acid and lithium-ion (LiFePO4) batteries (up to 40 amp-hours). Its advanced thermal sensor automatically adjusts charging based on ambient temperature, preventing overcharging in hot climates and undercharging in cold ones. The GENIUS2X4 can charge batteries from as low as 1 volt and offers a Force Mode for manual charging of completely dead batteries (as low as zero volts). Featuring smart monitoring, it ensures safe, indefinite connection for long-term battery maintenance, while precision pulse charging restores battery health by reversing sulfation and acid stratification. It is compatible with a vast array of vehicles, such as cars, automobiles, motorcycles, dirt bikes, scooters, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, snowmobiles, golf carts, classic cars,and more; including automotive brands like BMW, Mercedes-Benz, Porsche, Bentley, Maserati, Lexus, Audi, Ford, Chevrolet, Corvette, Cadillac, Prius, Toyota, Subaru, Nissan, powersport vehicles such as Harley-Davidson, Honda, Yamaha, Kawasaki, Ducati, Indian, KTM, Husqvarna, Vespa, Polaris, Seadoo, as well as lawn and garden vehicles such as John Deere, Kubota, Toro and more. The package includes a 8A four-bank charger (120-240VAC), four 75-inch AC cables (US, UK, EU, and AU), four 21-inch battery clamps with integrated eyelet terminals, four 10-foot DC extension cables, and a three-year warranty. Proudly designed in the USA, the GENIUS2X4 offers unparalleled performance and reliability for all your charging needs.

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