NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp

NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp

Item # 329-GEN4

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NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp 230 Ah 329-GEN4
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  • Battery Charger
  • NOCO
  • Wall Outlet to Vehicle Battery
  • Boat
  • Trolling Motor
  • Generator
  • Electric Vehicle
  • Industrial Equipment
  • Charges Only
  • AC to DC
  • 12V
  • 230 Ah
Submersible, on-board battery charger draws power from a wall outlet to charge and maintain up to 4 batteries. Multi-stage charging algorithm charges batteries 2x faster than most marine chargers. Rugged, waterproof design for marine applications. Call 800-298-8924 to order NOCO battery chargers part number 329-GEN4 or order online at etrailer.com. Free expert support on all NOCO products. Guaranteed Lowest Price and Fastest Shipping for NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp. Battery Chargers reviews from real customers.


  • All Info
  • Reviews (2)
  • Q & A (6)
  • Videos (1)
  • Photos
  • Why etrailer?

NOCO Battery Chargers - 329-GEN4

Submersible, on-board battery charger draws power from a wall outlet to charge and maintain up to 4 batteries. Multi-stage charging algorithm charges batteries 2x faster than most marine chargers. Rugged, waterproof design for marine applications.


Features:

  • On-board AC-to-DC battery charger draws power from a wall outlet to charge and maintain up to 4 batteries
    • Ideal for starter and deep-cycle batteries rated up to 230 amp-hours
    • Perfect for boats, trolling motors, generators, electric vehicles, and industrial equipment
  • 4 Battery banks allow (4) 12-volt batteries to be charged simultaneously
    • Provides full charge output even with low or varying AC current input
  • Multi-stage charging algorithm charges batteries 2x faster than traditional chargers without overcharging
    • Analyzes battery condition and customizes charge to quickly and fully charge battery, providing a maintenance charge when needed
    • Built-in battery desulfator restores lost battery capacity
  • Firewall protects internal electronics against short circuits, open circuits, overheating, overcurrent, and reverse polarity
  • Over-molded connection points protect cables from damage and provide a water-resistant seal
  • Completely sealed and waterproof design is fully submersible - perfect for on-board marine applications
    • IP68 rated for protection against shock, vibration, water, dirt, and dust
    • Saltwater-tested to combat corrosion
  • Integrated eyelet connectors and Type-B AC power cord included
    • AC Port Plug (329-GCP1 - sold separately) makes it easier to access a charging port while maintaining a waterproof seal
  • Meets USCG-33 CFR 183.410 requirements


Specs:

  • Application: 12V batteries
    • Battery types supported: wet cell, gel cell, AGM, enhanced flooded, and maintenance-free batteries
  • Charger dimensions: 11-3/8" long x 9-1/2" wide x 3-1/8" thick
  • HD eyelet cord length: 75-1/2"
  • AC cord length: 72"
  • Battery capacity range: 25 to 230 amp-hours
  • Input voltage: 70 - 130 VAC (50 - 60 Hz)
  • Number of battery banks: 4
  • Maximum charging amperage: 40 amps
    • 10 amps per battery bank
  • Output voltage: 12V DC
  • Weight: 15.6 lbs
  • Limited 5-year warranty


NOCO GEN4 On-Board Marine Battery Charger Diagram

Advanced Battery Charging Technology Reduces Charging Times

NOCO GEN4 On-board Battery Charger Charging Times Diagram



GEN4 NOCO Genius On-Board Marine Battery Charger - Submersible - AC to DC - 4-Bank - 40 Amp - 12V






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Video of NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for NOCO Battery Chargers - Battery Charger - 329-GEN4 Review

Today we're taking a look at the Noco genius onboard battery charger. Now, the onboard battery charger is designed for charging and maintaining four 12-volt marine starter or deep cycle batteries. It mounts directly to your boat, trolling motor, generator, electric vehicle, or industrial equipment. It is ideal for batteries up to 230 amp hours, and it simply converts AC power into safe, pure DC power for battery charging. This unit charges two times faster than traditional chargers, it features the three-prong power cord right here, and this measures six feet long. Charging amperage is 40 amps, that's 10 amps per bank, and each bank has a six-foot-long harness with the battery post eyelets for easy connecting.

It also features a nice lay-flat design, so that way it can work in spaces that are pretty tight. It's designed to fit up to 3/8 inch diameter posts, and each bank harness is protected with a 15-amp fuse in the fuse holder. So that's already installed, ready to go, in line, and each one is fuse-protected, again, with that 15-amp fuse.Now this unit is designed to monitor battery activity for safe, fast, and efficient charging of lead-acid batteries such as wet, gel, AGM, EFB, and maintenance-free batteries without the worry of overcharging. So this unit begins charging when needed and it allows for continuous operation without supervision. It's also 100% sealed for a waterproof and fully submersible design.

It protects against extreme working environments and features an IP six eight rating.Located on each bank, we have the charge LEDs that allow you to visually see the charging status. So they'll light up red when charging, and it'll turn green when charging is complete. It also features error LEDs that will notify you when an error condition is present. And then you can look up the code in the manual that it comes with and determine what the error is.It also features a built-in battery desulfator, which rejuvenates underperforming batteries, so it's designed to recover deeply discharged or worn-out batteries. And it features spark-proof technology and reverse polarity protection.

It's also ignition protected, so this is a non-igniting and temperature-controlled onboard battery charger for safe and worry-free operation.Now when it comes to the overall dimensions, I took a measurement from outer edge to outer edge going this direction, measures 11 1/2 inches long. Front to back is 8 3/8 inches wide. Top to bottom is 3 1/8 inches deep. It has mount holes that are pre-molded into the housing, and it comes with mounting hardware. These mount holes are separated going this direction on center by 6 7/8 inches, and then going this direction on center, they're separated by 9 5/8 inches.That's gonna do it for today's look at the Noco genius onboard battery charger..


Customer Reviews

NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 12V - 40 Amp - 329-GEN4

Average Customer Rating:  4.5 out of 5 stars   (2 Customer Reviews)

Submersible, on-board battery charger draws power from a wall outlet to charge and maintain up to 4 batteries. Multi-stage charging algorithm charges batteries 2x faster than most marine chargers. Rugged, waterproof design for marine applications.

- 329-GEN4
by:

Easy to install.I ran two days on my 36 volt in my 2012 -9 Nitro ,put in the Gen 4 in yesterday and had four green lights in 6 hours . Thanks E- trailer 525833



- 329-GEN4
by:

Contacted etrailer.com about charging K2 Energy Lithium Ion marine batteries. They took the time to contact NOCO Genius chargers to get me the correct answers. NOCO said absolutely that this would be the correct charger for lithium ion marine batteries. I am now confident that my investment of Lithium batteries will get the correct charge they require. The NOCO genius charger is lighter and smaller than my previous charger allowing more room and less weight in my boat. 480215


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  • Recommended Truck Camper Dual Battery Charging System
  • The NOCO Genius Mini On-Board Battery Charger - AC to DC - 2-Bank - 8 Amp # 329-GENM2 will work for a shore power to batter power charger for batteries up to 120 amp hours. If your batteries are larger then you will need the NOCO Genius On-Board Battery Charger - AC to DC - 4-Bank - 40 Amp - 12V # 329-GEN4 to charge batteries up to 230 amp hours. Most truck campers will instead use a DC to DC charger for the camper batteries. If your batteries are under 200 amp hours, I recommend the...
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  • Can Leads on NOCO Genius On-Board Battery Charger be Extended?
  • The leads on the NOCO Genius On-Board Battery Charger # 329-GEN4 can be extended up to 10' but only after the inline fuse. The manufacturer does not recommend extending the AC cord or modifications between the inline fuse and the charger. To add protection you should add another inline fuse closer to the battery with fuse holder # SWC9538 and 15 amp fuse part # C58450-1. This charger will work with the NOCO Genius AC Port Plug with Extension Cord # 329-GCP1 which is 16" long and that...
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  • Extending the Charger Lead Wires on NOCO Genius Battery Charger
  • The NOCO Genius On-Board Battery Charger # 329-GEN4 does not have the extensions like the NOCO Accessories X-Connect Extension Cable - 10' Long # 329-GC004. If you were to extend the wires from the manufacturer, you would need to so without altering the ring terminals or you would void the manufacturer warranty. The NOCO DC leads can be extended up to 10 additional feet after the inline fuse but not before it. NOCO does not recommend any modifications between the inline fuse and the...
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  • What Gauge Wire Are The DC Leads Of NOCO Genius On-Board Battery Charger For Extension
  • The NOCO Genius Mini On-Board Battery Charger part # 329-GEN4 DC leads are 14 gauge wire. The NOCO DC leads can be extended up to 10 additional feet after the inline fuse but not before it. NOCO does not recommend any modifications between the inline fuse and the charger itself. They also do not recommend to extend the AC cord at all. For more protection you can add another inline fuse closer to the battery if you decide to extend the DC leads with part # SWC9538 and 15 amp fuse part...
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  • Using NOCO Genius GEN4 Battery Charger for Two 12V Batteries and Four 6V Batteries
  • I spoke with my contact at NOCO regarding the use of the GEN4 Genius On-Board Battery Charger # 329-GEN4 for your application. She stated that this will work great to charge your two 12V batteries and four 6V batteries. What you will need to do is pair up the four 6V batteries and wire each of the two pairs in series so they have a 12V output (see attached image). Once you do this you will hook up the terminal ends of the GEN4 as follows: - Bank 1 to the first 12V battery - Bank...
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  • Can Different Capacity Batteries Be Charged Together
  • Batteries should always be charged individually. If you had two identical batteries but one is new and the other is a year old and has been through many charge/depletion cycles, the new one will pull in more of the charging power because it is in better shape. Batteries age and become less able to accept a charge effectively. Batteries connected together can result in one slowing the rate of charge on the other. Batteries with very different Amp-Hour ratings, like a 100-Ah and a...
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Info for this part was:

Installed by:
Cole B
Edited by:
Daron K
Photos by:
Jeffrey L
Written by:
Brian T

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