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NOCO Genius G4 6V/12V 4.4 Amp 4-Bank Battery Charger and Maintainer

by NOCO
4.2 out of 5 stars 4,813 customer reviews

Price: $179.95 & FREE Shipping. Details
4-Bank 4.4 Amp
    This fits your .
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  • The most convenient way to charge and maintain multiple vehicles for extending battery life and year-round battery maintenance of your car, boat, truck, RV, lawnmower, or any other vehicle.
  • Completely recharge smaller capacity batteries on motorcycles, ATVs, snowmobiles, personal watercraft, scooters, and power wheels up to 40 amp-hours.
  • Works with all types of 6-volt and 12-volt lead-acid batteries, including Wet, Gel, and AGM, or any common automotive, deep-cycle, marine, or maintenance-free battery.
  • Keep your battery fully charged without worry or overcharge. Simply plug-in and let our advanced charging technology automatically monitor and maintain your battery.
  • An optimized charge mode for safely charging and maintaining 12-volt lithium-ion batteries, and recommended with use on lithium batteries with an internal BMS.
  • One of the most advanced and safest battery chargers, including spark-proof technology, and reverse polarity protection, plus backed by our 5-year and endless accessories.
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Frequently bought together

  • NOCO Genius G4 6V/12V 4.4 Amp 4-Bank Battery Charger and Maintainer
  • +
  • NOCO GC004 X-Connect 10-Foot Extension
  • +
  • NOCO GC002 X-Connect Eyelet Terminal
Total price: $202.85
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Customer Rating 4 out of 5 stars (4813) 4 out of 5 stars (1010) 4 out of 5 stars (10759) 4 out of 5 stars (1590) 4 out of 5 stars (4857) 4 out of 5 stars (548)
Price $179.95 $11.95 $24.49 $139.65 $45.03 $97.48
Shipping FREE Shipping on orders over $25 FREE Shipping on orders over $25 FREE Shipping on orders over $25 FREE Shipping on orders over $25 FREE Shipping on orders over $25 FREE Shipping on orders over $25
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com
Item Dimensions 9.3 x 9.4 x 2.5 in 1.57 x 3.23 x 5.12 in 8 x 4 x 9 in 18 x 9 x 12 in 11 x 4 x 11 in 7.52 x 3.5 x 1.89 in

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Product information

Size:4-Bank 4.4 Amp

Technical Details

Technical Specification

Additional Information

Warranty & Support

Warranty, Parts:PartsWarranty, Labor:Yes
Product Warranty: For warranty information about this product, please click here [PDF ]

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CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Product description

Size:4-Bank 4.4 Amp

NOCO Genius smart battery chargers are some of the safest and most advanced on the market. One of our best, the G4 4-Bank Battery Charger and Maintainer is designed to charge 12-volt lead-acid and lithium-ion batteries up to 40Ah. It can also effectively maintain automotive, marine, RV, powersport, lawn & garden and deep-cycle batteries. It chargers 2x faster than ordinary battery chargers, can repair damaged batteries and is designed for use with micro-hybrid start-stop vehicles and CANBUS electrical systems.

Guided by an onbaord microcomputer, the G4 monitors batterhy activity for safe and efficient charging, automatically minizes energy consumption and provides redundant levels of safety protection, including spark-proof technology, as well as reverse polarity and overcharge protection. It can remain safely connected 24/7, while its streamlined design makes it ultra-compact, portable, and incredibly lightweight.

The G4 features external mounting holes and a rubberized base that avoids surface slipping and scratches, while remaining impact, UV and water resistant (IP65). Intuitive LED indicators provide visual state-of-charge feedback and diagnostic information, even when in maintenance mode. Designed for use on 120-volt 50-60Hz electrical systems and includes X-Connect battery clamps with integrated eyelet terminals, as well as a 5-year limited warranty.

Other commonly used search terms include: 12 volt battery maintainer, 12 volt motorcycle trickle charger, 12 volt trickle charger, 12v battery trickle charger, 12v car battery charger, 12v trickle charger, battery maintainer, battery maintainer 12 volt, battery trickle charger, battery trickle charger with float mode, car battery charger maintainer, car battery trickle charger, harley davidson trickle charger, marine battery trickle charger, motorcycle battery charger, trickle charger, trickle charger car battery, trickle charger for atv, trickle charger for boat battery, trickle charger for car battery, trickle charger for motorcycle, trickle chargers, waterproof trickle charger, power wheels battery charger, battery maintainer for boat, battery maintainer for rv


From the manufacturer

battery charger, car battery charger, smart battery charger, battery tender, battery maintainer battery charger, car battery charger, smart battery charger, battery tender, battery maintainer battery charger, car battery charger, smart battery charger, battery tender, 12v battery charger battery charger, car battery charger, smart battery charger, battery tender, 12v battery charger battery charger, car battery charger, smart battery charger, 12v battery charger, engine start battery charger, car battery charger, smart battery charger, 12v battery charger, engine start
Model G750 G1100 G3500 G7200 G15000 G26000
Power 0.75A 1.1A 3.5A 7.2A 15A 26A
Battery Voltage 6V & 12V 6V & 12V 6V & 12V 12V & 24V 12V & 24V 12V & 24V
Cold/AGM Mode
12V Lithium Mode
Small Battery Mode
12V Repair Mode
12V Supply Mode
12V AGM+
JumpCharge Vehicle Starting


Customer Questions & Answers

4,813 customer reviews

4.2 out of 5 stars

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Automotive
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Showing 1-8 of 4,813 reviews

January 5, 2018
Size: 3.5 AmpVerified Purchase
611 people found this helpful
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April 1, 2017
Size: 3.5 AmpVerified Purchase
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February 4, 2017
Size: 3.5 AmpVerified Purchase
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February 19, 2018
Size: .75 AmpVerified Purchase
84 people found this helpful
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May 11, 2017
Size: 7.2 AmpVerified Purchase
216 people found this helpful
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February 11, 2017
Size: 3.5 AmpVerified Purchase
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January 28, 2017
Size: 7.2 AmpVerified Purchase
154 people found this helpful
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