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NOCO® G4 4.4 Amp 4-Bank Battery Charger & Maintainer

NOCO® G4 4.4 Amp 4-Bank Battery Charger & Maintainer - NOCG4

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List Price: $249.95
: $198.85

Product Code: NOCG4-03

Description Technical Specifications
NOCO® G4 4.4 Amp 4-Bank Battery Charger & Maintainer

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The G4 is a 4-bank automatic battery charger and maintainer for both 6V and 12V lead-acid and lithium-ion batteries. It's capable of charging up to four different batteries at the same time, and perfect for charging a motorcycle, ATV, snowmobile, personal watercraft, lawnmower, and much more. It also can be used as a battery maintainer to keep a car, boat, RV, and deep-cycle batteries fully charged. It monitors battery activity for safe and efficient charging without any overcharge, and features a built-in battery desulfator to rejuvenate underperforming batteries.

Ultimate versatility. Charge and maintain four different batteries at the same time.
If you have multiple vehicles or toys, the G4 is the perfect solution for keeping them fully charged and maintained. With four independent charging banks, you can safely charge multiple battery types— Wet Cell, AGM, and Lithium-Ion— from one seamless battery charger. Charge a 6V battery on one bank, and a 12V AGM battery on another. It's the ultimate versatile for anyone with multiple charging needs.

Plug-n-play. Battery maintenance made easy.
Plug-in, set and forget. It's no wonder it's the ultimate battery maintenance charger. Quickly connect and disconnect the battery charger when needed. It remembers the last charging mode and automatically resumes charging if accidentally disconnected or loses power, and it keeps any battery fully charged without supervision. With detachable D/C cables, use the charging leads you only need for a clean installation.

Advanced diagnostics. Battery charging with intelligence.
Smart battery chargers can be frustrating. It won't simply begin charging if it detects a weak or damaged battery or force charging if it detects an unsafe or abnormal charging condition. But prevention is just one aspect. Understanding and finding a solution is just as critical. Welcome to Advanced Diagnostics, which analyzes battery feedback and display a particular error pattern if a problem is detected. Each flash pattern tells you what's wrong, and how to quickly fix it.

  • Single Flash: Battery will not hold a charge and should be checked by a professional.
  • Double Flash: Possible battery short, and should be verified by a professional.
  • Triple Flash: Battery voltage is too high for the selected charge mode. Double check the battery matches the charge mode.
  • Error LED Solid Red: Reverse polarity. Reverse the connections to the battery.
  • Standby LED Solid Orange: Battery voltage is too low for the battery charger to detect the battery.

Battery Charging vs. Battery Maintenance. Which battery charger is right for you?
Selecting the proper battery charger depends on your needs. Do you need to recharge a dead battery entirely, or just keep a battery at full charge? Battery charging means you need to recharge a dead battery fully, whereas battery maintenance requires a mere trickle charge. Most battery chargers perform both functions, but understanding their limits and the amount of time to recharge depends on the size of the battery and vehicle. The G26000 is designed for charging a Car, Boat, RV, SUV, or Diesel Truck, as well as, racing vehicles. But it also can be used as a battery maintainer to keep both starter and deep-cycle batteries fully charged. The charging time chart not only helps you determine how long it will take to recharge but also its limits between battery charging and battery maintenance.

Efficient design. Compact, yet powerful 4-bank battery charger.
A mix of electrical engineering and industrial design create a powerful battery charger into a tiny footprint. It uses high-frequency switch-mode technology to efficiency convert A/C power into safe D/C power for battery charging. And it's onboard microcomputer precisely controls the charging to minimize power loss to create an incredibly compact form factor.

  • A 6V and 12V 4-bank battery charger and maintainer.
  • Charges lead-acid and lithium-ion batteries up to 40 amp-hours
  • Recovers deeply discharged batteries down to 2-volts.
  • Spark-proof technology and reverse polarity protection.
  • Built-in battery desulfator to recover worn-out batteries.
  • Safely monitors battery actively with zero overcharge.
  • Suitable for start-stop and CANbus vehicle systems.
  • Advanced diagnostics indication for damaged batteries.
  • Charge up to four different batteries at the same time.


  • G4 4-Bank Battery Charger and Maintainer
  • (2) GC001 Battery Clamps
  • (2) GC002 Eyelet Connectors
  • (4) GC004 10-Foot Extension Cables
  • User Guide & Warranty Information

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Warning SignWARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

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