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Noco Genius G4 4 bank 1.1 Amps per bank, 6 and 12 Volt Battery Charger

Was: $249.95
Sale Price: $189.95
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Product InformationStore Part Number: G4


The G4 is a smart, 7-step, fully automatic switch-mode battery charger and maintainer with 4 independent battery banks. The G4 multi-bank battery charger allows different battery sizes, voltages (6 V or 12 V), and chemistries to be charged at the same time safely and efficiently. The G4 is best for charging multiple small battery applications from 2.2-40Ah, such as motorcycles, ATVs, jet skis or snowmobiles. In addition to charging, the G4 can effectively maintain any 6 V or 12 V batteries in larger applications, such as cars, RVs, boats and trucks. With 4 independent battery banks, the G4 is the best way to keep all of your vehicles maintained at the same time.

What's In The Box

  • 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


  • 4 Bank Charger
  • Smart, Microprocessor Controller Charger
  • 12/6 Volt Switchable
  • Overcharge Protection
  • Reverse Polarity Protection
  • Short Circuit Protection
  • Switch-Mode Technology
  • LED Readouts
  • Suitable for Wet Cell (Flooded), Gel Cell, Calcium, AGM, Enhanced Flooded Battery, Maintenance-Free Battery for both 6v and 12v battieries ideal for batteries up to 40AH.
  • 12V Lithium Mode - Designed for charging lithium-ion batteries that include a battery maintenance system (BMS), including lithium iron phosphate batteries.


Please Note that the unit only comes with 2 Ring Quick Disconnects, 2 Alligator Quick Disconnects, and 4 extension cables.

Tech Specs

  • Dimensions (LxWxH): 9.2 x 9.2 x 2.4 in
  • Weight: 2.78 lb
  • Shipping Weight: 7 lb
  • AC Input: 110-120 VAC, 50-60Hz
  • Amperage Output: 1.1 Amp/Bank
  • DC Cord Length: 60-Inches (16AWG)
  • AC Cord length: 60-Inches (18AWG)
  • Model: G4
  • Manufacturer: NOCO
  • 12V Normal Setting: 14.5V @ 1.1A Up To 40Ah Batteries
  • 12V COLD/AGM Setting: 14.8V @ 1.1A Up To 40Ah Batteries
  • 6V Normal Setting: 7.25V @ 1.1A Up To 40Ah Batteries
  • 12V Lithium Setting: 14.2V @ 1.1A Up To 40AH Batteries
  • Battery Chemistry: Wet, Gel, MF, CA, EFB, AGM, LIB
  • Operational Temperature : 0° - 40° C, 32°F to +104°F
  • Warranty: 5 Years Pro Rated
  • Manufacturer Part #: G4
  • Made In: Asia

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Reviews and Ratings

4.00 Average
5 Stars 0
4 Stars 1
3 Stars 0
2 Stars 0
1 Stars 0
Rated 4.00/5 Stars from 1 customer reviews.

Do you own the G4? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

Noco Genius G4 4 bank
Pros: Simple to use and light weight. Gives you a visual state of battery charge. So far has not damaged any of my PWC batteries internally.
Cons: Standard wires could be a little longer as to not have to use the included extensions.
Cost was a little more than a 4 Bank Battery Tender but I feel its additional features make up for it.
Is this review helpful?
Written by on Sep 16, 2014. Ownership: Just Bought. Knowledge Level: AC/DC is more than a band — (95 of 172 customers found this review helpful

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Manuals & Tutorials

User Guide


Data Sheet

Order Line: 1-800-362-5397
M–F 6am–5pm PST
Tech Help: 541-474-4421
Fax: 541-471-6014
276 Tech Way, Suite A
Grants Pass, OR 97526
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