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NOCO Genius 12v 24v 36v 30 Amp On-Board 3 Bank Marine Charger GEN3

Was: $299.95
Sale Price: $239.95
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Automatically will diagnose, recover(if necessary), charge, and maintain your batteries in the most efficient manner possible. Now that’s smart, Wicked smart!

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Product InformationStore Part Number: GEN3


The NOCO Genius GEN3 charger is an 8 step, fully automatic 3 bank switch-mode battery charger, which automatically determines the condition of your batteries before beginning its charge cycle. It will only charge when the batteries need it, and will fully maintain your battery when it is in storage or between uses. All of the Genius line of battery chargers are programmed for optimal battery charging and maintenance, with proprietary Rapid Charging Technology(RCT). The smart microprocessor and advanced high frequency design will charge batteries twice as fast as a conventional transformer based marine charger, while always preventing overcharge. This assures you of maximum battery life and less downtime. Genius chargers also utilitize Variable Input Compensation, which means that your charger will work as it should, delivering its full, correct voltage and amperage, whether or not long extension cords or low AC power are used.


  • Fully Interactive, built in Micro Control Unit for decreased charge times
  • Variable Input Compensated
  • Fully sealed waterproof design rated IP68 enclosure, yet factory serviceable
  • Compact Lightweight design allows for a smaller footprint than other chargers
  • RECOVERY MODE: Recovers deeply discharged & sulfated batteries with pulse charging
  • Advanced 8 Step Design
  • 10 amp per output x 3 banks, 30 amps maximum output
  • Safe for AGM, Gel and Wet cell Lead Acid batteries
  • Waterproof & Easy Install
  • Optimal 3 Step Charging
  • Spark Free Hook Up
  • Reverse Polarity Protection
  • Short Circuit Protection
  • Line Regulation
  • Load Regulation
  • Thermal Protection
  • Output Regulation
  • 3 year Warranty


NOCO Genius chargers are waterproof and fully automatic! * Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 11.4 x 8.4 x 3.1 in
  • Weight: 11.5 lb
  • Shipping Weight: 18 lb
  • Output Leads: 6 Feet
  • AC Cord Lead: 5 Feet
  • DC Output Amps: 10A each bank
  • DC Output Voltage: 12 per output
  • Output Voltage Charging: 13.5 V-14.5 V DC
  • DC Output Voltage (No Load) approx.: 0 V when battery not detected
  • Absorption Voltage: 14.4 V
  • AC Input Amps: 2.0 A
  • Maximum AC Current @ 108 VAC: 1.5
  • Maximum AC Current @ 90 VAC: 1.5
  • AC Input Volts: 120 VAC
  • AC Input Volts Freq.: 50-60 Hz
  • AC Input Volts Range: 70-130 VAC
  • Max Inrush Current, Single Cycle: 2.0 Max
  • Float Current: 1000 mA
  • Model: GEN3
  • Manufacturer: NOCO
  • Float Voltage: 13.5 typical
  • Typical Efficiency: 87%
  • Power Factor: 90%
  • Power Requirements: 110 W
  • Maximum Power Output, Continuous: 95 W
  • Maximum Power (+/- 3%) @ 25° C: 100 W
  • Maximum Output Amps Single Surge: 10.5 A
  • Maximum Input Current: 1.5 A
  • Charge Reset: Battery Voltage Threshold: Below 12.8 V /timed
  • Working Temperature: 0° to 50° C
  • Storage Temperature: -20° to +60° C
  • Over Temperature: Auto overtemp foldback
  • Ripple and Noise: 50 mA at 30 kHz
  • Enclosure: Polycarbonate, sealed and potted
  • Output Banks: 3
  • Recommended Use: marine, outdoor harsh environments
  • Regulatory Approval: ISO8846, USCG 33CFR1830-410, FCC part 15
  • Manufacturer Part #: GEN3
  • Made In: China

Reviews and Ratings

5.00 Average
5 Stars 1
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 1 customer reviews.

Do you own the GEN3? 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.

Norco Genius 3 Bank Charger Gen3
Pros: Easy to use, just plug it in and walk away. Fast charging. Reliable. Compact size, doesnt take up too much space. Norco is by far the best onboard charger I have ever owned
Cons: None
I run a Minn Kota 101 I-Pilot powered by 3 Trojan group 31 batteries. I use this to troll for walleye on Lake Erie puttting in sometimes 8 to 10 hours of trolling in a day. The Norco Gen3 charger brings battery levels back to 100% over nite ready to do it again the next morning. I have a Norco Gen2 on my other boat, also with the Trojan batteries for three years now with the same great performance.
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Written by WasFishin on Aug 16, 2013. Ownership: Use regularly. Knowledge Level: Genius is my way of life — (98 of 172 customers found this review helpful

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Manuals & Tutorials


Specification Sheet


Chargers Tutorial

Why does it read 13 volts?

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