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NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 5 Amp

NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 5 Amp

Item # 329-GENIUS5
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NOCO Battery Charger - 329-GENIUS5
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Compact smart charger draws power from a wall outlet to charge and maintain batteries on cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, and boats. Force mode revives dead batteries. Charges lead-acid and lithium-ion batteries. Call 800-298-1624 to order NOCO battery charger part number 329-GENIUS5 or order online at etrailer.com. Free expert support on all NOCO products. Guaranteed Lowest Price and Fastest Shipping for NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 5 Amp. Battery Charger reviews from real customers.
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NOCO Battery Charger - 329-GENIUS5

  • ATV
  • Boat
  • Car/Truck/SUV
  • Generator
  • Jet Ski
  • Lawn Mower
  • Motorcycle
  • RV/Camper
  • Snowmobile
  • Trolling Motor
  • Battery Charger
  • 6V
  • 12V
  • Wall Outlet to Vehicle Battery
  • NOCO
  • Charges/Maintains
  • 120 Ah

Compact smart charger draws power from a wall outlet to charge and maintain batteries on cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, and boats. Force mode revives dead batteries. Charges lead-acid and lithium-ion batteries.


  • AC-to-DC smart charger quickly charges and maintains a battery
    • Perfect for charging a car, motorcycle, lawnmower, ATV, tractor, truck, SUV, or boat
  • Multiple battery profiles let you charge a variety of battery types at different voltages
    • 6V Modes - normal
    • 12V Modes - normal, AGM, lithium-ion, and repair
    • Force mode provides a constant charge to revive dead batteries
  • Multi-stage charging algorithm charges 2x faster than traditional chargers without overcharging
    • Analyzes battery condition to provide a customized charge
    • Built-in battery desulfator restores lost battery capacity
  • Precision needle-nosed battery clamps are spark-proof and have reverse polarity protection
    • Built-in 10-amp fuse protects electronics from dangerous overloads
  • Simple operation with mode button and LED indicators
    • Auto-memory feature remembers the last charge mode if power is lost
  • Snap-fit bracket and hook-and-loop strap secure unit near battery
  • Durable resin housing is rugged and water resistant - perfect for on- or off-board applications
  • X-Connect series accessories (sold separately) provide connections for additional applications


  • Application: 6V and 12V batteries up to 120 amp-hours
  • Battery types supported: wet cell, gel cell, enhanced flooded, maintenance-free, AGM, and Lithium-ion
    • Lithium-ion batteries must have battery management systems (BMS)
  • Maximum charging amperage: 5 amps
  • Battery clamp cord length: 77"
  • AC cord length: 71"
  • Input voltage: 120 - 240 VAC (50 - 60 Hz)
  • Maximum power consumption: 75 watts
  • Low voltage detection rating: 1 volt
  • IP rating: 65
  • Operating temperature: -4 F to 104 F
  • Dimensions: 6-3/8" long x 2-15/16" wide x 1-15/16" thick
  • Weight: 1.5 lbs
  • 3-Year limited warranty

NOCO GENIUS5 Smart Battery Charger Dimensions

The NOCO Genius 5-amp smart charger quickly charges and maintains your 6V and 12V lead-acid and lithium-ion batteries, using a standard household outlet. Rated for 6V and 12V batteries up to 230 amp-hours, it's a great charger for cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, and boats. With 5 selectable battery profiles, multi-stage charging, and advanced safety features, this Genius smart charger makes it easy to keep your batteries in peak condition. There's even a Force Mode feature for charging dead batteries with 0-volts.

NOCO GENIUS5 Genius Battery Charger Operation

This Genius smart charger removes the frustration of having to own multiple devices to charge different battery types and vehicles. Just attach the battery clamps to the vehicle's battery terminals, select a charging mode to match your application, and wait for the LED indicator to signal that the battery is completely charged. It's that simple.

User-Friendly Interface with LED Indicators

NOCO GENIUS5 LED Charging Indicators

This Genius smart charger was designed to provide a simple, user-friendly experience. The mode button allows you to easily cycle through the unit's charge settings. Back-lit LED indicators let you verify that the unit is operating correctly, and they allow it to be easily operated at night. These indicators signal the unit's charge status, selected charging mode, and alert you to potential performance issues or errors.

NOCO GENIUS5 Smart Diagnostics Troubleshooting Explained

These indicators allow you to quickly identify a problem with the battery or connection. So you don't have to waste time guessing if the battery voltage is too high or too low for your selected mode, or worry about damage from a reversed polarity connection to a battery.

6 Battery Charging Modes

This Genius 5-amp smart charger has 6 selectable charging modes that let you quickly switch between charging different lead-acid and lithium-ion battery types at different voltages. Traditional battery chargers generally only work with a specific voltage or battery type, like lithium-ion or AGM batteries, or only in special circumstances like charging in cold environments. This Genius smart charger gives you the versatility to tackle different battery types and charging situations in one charger.

NOCO GENIUS5 Automatic Battery Charger Charging Modes Explained

The image above details the available charging profiles. The charger works with 6V and 12V wet cell, gel cell, enhanced flooded, calcium, maintenance-free, AGM, and 12V lithium-ion batteries with battery management systems (BMS).

NOCO GENIUS5 Force Mode for Charging Zero Voltage Batteries

The Genius 5-amp can detect and charge batteries that have been drained to 1-volt. And by activating the Force Mode, the charger can even charge dead batteries with 0-volts. Traditional chargers can't detect a battery when the voltage drops below a certain level. To activate Force Mode hold the mode button down for 5 seconds.

Genius Precision Battery Clamps

NOCO GENIUS5 Genius Precision Battery Clamps

The needle-nosed battery clamps included with this Genius smart charger are designed to easily connect to battery terminals of all shapes and sizes. Unlike typical, plastic battery clamps, these clamps are constructed entirely of metal, ensuring maximum conductivity. The clamps are covered with an over-molded plastic housing, which makes them easy to operate even with work gloves on. A built-in 10-amp fuse protects your connection against dangerous overloads.

NOCO GENIUS5 Battery Clamps with Eyelet Connectors

1/4" Eyelet connectors can be unbolted from the clamps for direct mounting to terminals on hard-to-reach batteries. The lie-flat design ensures maximum contact with terminals to optimize current transfer.

Quickly Charge and Maintain Batteries from 120VAC Power Source

NOCO GENIUS5 AC Plug for Wall Outlet Charging

This Genius smart charger plugs into an available wall outlet to quickly charge and maintain your battery. High-frequency switch-mode technology converts AC power into safe DC power to fully charge batteries. An onboard microcomputer monitors and controls this charging process to minimize power loss and maximize efficiency. The included mounting bracket with hook-and-loop strap lets you mount the unit in an enclosed compartment, garage, or workspace.

NOCO GENIUS5 Charging Times for Battery Sizes

The table above provides a quick reference for how long it will take the unit to charge some different battery sizes.

Rugged Weatherproof Design

NOCO GENIUS5 Rugged Weatherproof Housing

The Genius5 smart charger comes with over-molded connection points to protect the unit from dirt, dust, and water. The unit has an IP65 rating, meaning the housing is considered "dust tight" and protected against water sprayed from a nozzle. A durable X-connect plug ensures a weathertight connection when attaching the clamps to the charger.

The housing is made from tough Lexan resin that protects the internal electronics against impacts. The unit can handle being dropped, kicked over, and just about anything else your day brings.

Interchangeable X-Connect Accessories

NOCO GENIUS5 X-Connect Accessories for Versatile Charging Solutions

This Genius smart charger features a unique X-Connect plug that lets you disconnect the battery clamps and attach other X-Connect accessories (all sold separately) for versatile plug-and-play charging solutions. Add an extension cord to increase your connections reach, or use the 12V female plug to connect and power 12V accessories. Access your vehicle's battery through charging ports with the OBDII connector, or the 12V male plug. With a large variety of available accessories this battery charger can be outfitted to meet your application's specific charging needs.

GENIUS5 NOCO Smart Battery Charger and Maintainer - AC to DC - 6V/12V - 5 Amp - 75 Watt

Replaces part number: G3500

Installation Details 329-GENIUS5 Installation instructionsAlternate Instructions 329-GENIUS5 Installation instructions

California residents: click here

Customer Reviews

NOCO Genius Smart Battery Charger - AC to DC - 6V/12V - 5 Amp - 329-GENIUS5

Average Customer Rating:  4.9 out of 5 stars   (95 Customer Reviews)

Compact smart charger draws power from a wall outlet to charge and maintain batteries on cars, motorcycles, lawnmowers, ATVs, tractors, trucks, SUVs, and boats. Force mode revives dead batteries. Charges lead-acid and lithium-ion batteries.

- 329-GENIUS5

Very fast delivery, product as described, another great experience with etrailer. Thanks!

- 329-GENIUS5

heavy duty, really solid product, can tell its built with quality

works great, costs more, heavier duty than most cheap electronics, and holds up nicely
steve - 10/25/2021

- 329-GENIUS5

Best charger. No regrets at all. Very good quality,

- 329-GENIUS5

Just received item. Customer service was excellent. Items arrived earlier than promised which is great. When I use the charger I'll provide an update.

- 329-GENIUS5

very satisfied with this purchase. I had a GM battery at 81% on standby, it took just a few minutes to fully charge using this device. Now is on maintenance mode fully charged and ready to go.

- 329-GENIUS5

First off this product is GREAT! I bought a few and returned them. This one I love. It REALLY WORKS. Also, etrailer is AMAZING! I have never used them before but going forward it will be 1 of the 1st sites I go look at. most of the time I am an [online retailer] guy but with shipping being 1 month out I looked elsewhere. etrailer even upgraded my shipping!!!! seriously, this was a GREAT experience and I will be a repeat customer.

- 329-GENIUS5

I now have 4 NOCO genius chargers. Easy to use for maintaining batteries!!

- 329-GENIUS5

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- 329-GENIUS5

- 329-GENIUS5

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

We have had this charger for about a year now. We use it to recharge batteries for the camper and boat, and maintain them over the off season. It has worked great to charge both our conventional wet cell and AGM 12 volt batteries. It charges the batteries in a reasonable amount of time and, due to the "smart" multi-stage charging technology built into the charger, we do not have to worry about over charging the batteries. I highly recommend this charger.

- 329-GENIUS2

Review from a similar NOCO Genius in Battery Charger

Just added this one to my “fleet” of NOCO chargers, has kept my group of Antique tractor 6 volt batteries alive for several years instead of replacing them almost every year. I don’t and won’t own anything else! They are the best!

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

simple to use, relatively fast charging. Particularly like that it has both alligator clamps and ring terminals. "Intelligent" charge controller quickly charges a dead battery but also dials back to trickle charges then off when full for better battery life (and less evaporation on non-sealed batteries) so you can leave the battery attached for optimum over winter storage.

- 329-GENIUS1

Review from a similar NOCO Genius in Battery Charger

pretty expensive for a trickle charger, BUT it appears to be made from better than average materials, and it is compatible with wet cell, AGM, and even Li-ion. The battery clamps are really nice-looking, quality constructed, top grade material. It appears to me to be a really top shelf, state of the art, highly-optioned, trickle charger. 3yr warranty.

it has been working pretty much 247. Still working as advertised.
Fred G - 04/17/2021

- 329-G1100

Review from a similar NOCO Genius in Battery Charger

The Noco G1100 is one of four items I purchased from etrailer to make a portable 12 volt power pack for camping. I wanted to make my own power pack because many available do not have the power I want, have gimmicky features I do not want, and the batteries are not usually user-replaceable. Noco’s X-connect feature made this very easy. I also ordered a HM082BKS box for a U1 type battery, a GC010 12 volt female connector (cigarette lighter type), a GC013 male-to-male coupler, and a GC004 10 foot extension. From elsewhere I purchased a 35 amp/hour U1 battery with screw terminals (Interstate DCM0035) to fit in the box. I unscrewed the battery clamps from the charger output cable which left ring terminals I then attached directly to the battery. Leaving this part attached to the battery, the X-connect feature allows me to: (1) hook up the charger to the battery, or, (2) with the GC013 coupler, attach the female connector for camping. I expect to use this power pack for my CPAP, which can run directly from 12 volts DC (without an inverter), and eventually other items, such as a 12 volt TV. I can also power and charge USB devices with a USB adapter/charger which plugs into the 12 volt female connector. I’ll be testing the setup during an upcoming trip but have no reason to doubt it will work as expected. Of course, you could do the same thing with a bigger battery with the proper charger and battery box. The X-Connect feature is great and I should not have to open the box until I need to replace the battery. I have attached pictures which show (1) the charger attached to the battery, (2) 12 v female connector connected to the battery with the male coupler, and, (3) the unit ready for travel. The little dust cap from the X-Connect is attached to the battery box strap.

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

8 months after purchasing my NOCO Genius the battery on my truck went dead, best I could get was a little clicking, no lights, radio, nothing. My first thought was a lose connection however after checking and finding everything in order I hooked up the NOCO, turned it on and fired the truck right up. This was my first experience with this type of device and did not know what to expect, I was completely impressed by how well the NOCO Genius worked! It is a must have and will always be a part of my onboard took kit!

- 329-GENIUS2

Review from a similar NOCO Genius in Battery Charger

I bought two of the Noco 2 amp battery maintainers and am pleased with both. Using them outside in a dry location to maintain car batteries. Convenient connect/disconnect and easy to read and understand status LEDs.

- 329-GEN4

Review from a similar NOCO Genius in Battery Charger

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.

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

I like that it's weather proof and has selectable charging. It charges car batteries quickly, but I mostly use it to charge the chassis batteries in my motorhome while it's in storage. The only negative I've found is that it doesn't handle Arizona summers, but I haven't found a charger that does. I use it for a few hours early in the morning and that seems to be sufficient. I installed the NOCO eyelet terminal accessory on each set of batteries.

- 329-GENIUS2

Review from a similar NOCO Genius in Battery Charger

Having used THE NOCO Genius2 battery charger for greater than 1 years, I can say that I am completely satisfied with form and function of the device. I use the charger to maintain fresh battery charge for my RV trailer. I like the compact, portability and weight of the unit. The indicator lights keep me informed of the battery charge status. I consider this purchase as one of my best purchases of all my RV gear. Thanks for an excellent product.

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

Absolutely the best,and easiest, battery charger I have ever used.

- 329-GENIUS10

Review from a similar NOCO Genius in Battery Charger

Bought two of these for a cars why we were away for an extended time last winter.They worked flawlessly and cars started right up when we returned.Highly recommend these for keeping battery like new.

- 329-GENIUS2

Review from a similar NOCO Genius in Battery Charger

Works as advertised. Quality product, simple operation. Especially like how the system remembers the last battery type setting for each of the 4 banks of chargers. I bought several more Noco chargers after this one.

Show More Reviews

Ask the Experts about this NOCO Battery Charger

  • Can I use the Noco Genius5 while my trailers own converter remains connected to the battery?
    I reached out to my contact at NOCO and they do not recommend having your trailer charger/converter charging the battery at the same time as the NOCO is charging the battery. They feel it could overcharge and damage the battery. I did not mention that you already had concerns about your old charger overcharging. When your onboard charger is not working the NOCO would be an excellent way to keep your battery charged as it will turn off/on as needed to keep the battery topped off. I don't...
    view full answer...
  • How To Charge 12v Batteries Wired in Parallel
    In order to charge your batteries wired in parallel with the NoCo Genius # 329-GENIUS5 you'll want to connect the positive charge line to the positive terminal of the first battery and the negative line to the negative terminal of the opposite battery. This is an AC to DC charger so it will work directly from a wall outlet for added convenience.
    view full answer...
  • Recommended AC to DC Battery Charger for Lithium Ion Battery
    The NOCO Genius Battery Charger part # 329-GENIUS5 is what I recommend for a 100 amp hour lithium ion battery. It has multiple charge cycles for optimal performance and is super easy to use.
    view full answer...
  • Could NOCO Genius Battery Charger and Maintainer Charge Deep Cycle Battery In Vehicle
    NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 will work great for what you are trying to do as long as you meant to say 120 volt and not 120 watt but in order for it to shut off when the vehicle is turned off you'd need that outlet to only have power when the key is on. Which if that is not the case you'd need to install an isolation solenoid like the # TR118665 on this circuit. Basically the outside posts would wire in line with the power source for the socket and then you'd...
    view full answer...
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  • How to Power Interior Trailer Light While Trailer is Unconnected from Tow Vehicle
    There really isn't a way for you to power the interior light in your dog trailer with the trailer unconnected from the tow vehicle unless you were to install an auxiliary battery in the trailer. If you were to install an auxiliary battery you would also need a battery charger to keep the battery charged like NOCO Genius Battery Charger and Maintainer # 329-GENIUS5. The best and most cost effective solution for you would be to install a battery powered light inside the trailer like part...
    view full answer...
  • Tips for Charging Battery on Trailer that Powers Winch
    Charging a trailer battery with the 12 volt accessory circuit of a 7-way is a great way to put a maintenance charge on the battery but you really can't fully charge a dead battery using this method as the circuit just doesn't have the amperage for that. You would need to use a NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 to charge the battery when parked and then use the 7-way to keep it topped off.
    view full answer...
  • Switching From 12 Volt Batteries To 6 Volt Batteries Blowing Fuses On Camper Trailer
    If you have a 12 volt system on your camper, you will need to wire your 6 volt batteries (in series), like the attached drawing shows. You would need to run a jumper from the positive side of one battery to the negative side of the other battery. This would provide the 12 volts needed. If you have wired the 6 volt batteries (in parallel) as the 12 volt batteries were probably run, you are not providing enough current for your camper, causing the draw to blow the fuses. If you have...
    view full answer...
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  • Recommended NOCO Battery Charger for Chevrolet Express Van
    For your Chevrolet Express Van, I recommend the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5. The charger is designed to be used with automotive batteries and can handle batteries with amp hours between 1.2-120. It will not jump start the vehicle, but will keep the battery maintained so you won't need it to. The charger won't overcharge or undercharge by automatically switching to pulse-maintenance phase when the battery reaches a full charge. It is approved for indoor and...
    view full answer...
  • Battery Charger Recommendation for Trailer with 2 Batteries
    It's really pretty hard to charge a set of trailer batteries efficiently while the trailer is being towed. The 12 volt wiring that leads to trailer batteries just doesn't have the thickness to carry enough amperage. We recommend people use wall outlet chargers like the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 to charge the battery when parked and then let the trailer's wiring put a maintenance charge on the batteries.
    view full answer...
  • Wiring 12 Volt Batteries for Same Voltage But Increased Amp Hour Usage
    When you wire your 12v batteries in parallel, the voltage stays the same but the capacity is doubled. This is regarding the amp hours you referenced. You can use the Deka Stackable Battery Cable - 2/0 Gauge - Black - 13" Long # DW04316 and Red # DW01485. The NOCO Genius Smart Batter Charger - AC to DC - 6V/12V - 5 Amp # 329-GENIUS5 you asked from is able to be used when two batteries are wired in parallel.
    view full answer...
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  • Connecting 2 12 Volt Batteries in Parallel on my Polaris Ranger
    This is a good plan to help ensure you don't get stranded. To start You want to use a heavy gauge wire to connect batteries in parallel. I generally make the jumper you need from MaxxTow Jumper Cables part # MT89FR you can cut these down to whatever size you need then add on the appropriate cable ends to connect to your battery. For the isolator using the Redarc Smart Start Battery Isolator part # 331-SBI12 will handle all you will be putting it through I really like the isolator here...
    view full answer...
  • Can the Breakaway Battery Charger on a Car Hauler be used to Charge a Large Winch Battery
    Using the breakaway battery charger to charge another battery on the trailer is not recommended. The larger battery you are using to operate the trailer winch would take an extremely long time to charge with a breakaway charger and would likely never charge fully with the limited amount of time the trailer is connected to the vehicle, even if towing long distances. The breakaway battery may not be charged sufficiently in this situation either. The best bet for charging the winch battery...
    view full answer...
    Image 1 for
  • Is There Benefit to Having Multiple Batteries Wired in Parallel on Trailer
    Having a bank of batteries gives you a much longer battery life than a single battery. That's really all you gain with a battery bank that has 12 volt batteries wired in parallel.
    view full answer...
  • Can the NOCO Genius Smart Batter Charger 329-GENIUS5 Be Used for Two 12 Volt Batteries
    Yes, you can still use a single bank battery charger to charge both batteries like the NOCO Genius Smart Batter Charger part # 329-GENIUS5 just be sure to pay attention to the amp hour capacity and the limit for this model is 120 amp hours.
    view full answer...
  • How Does Battery Bank Wired in Parallel Attach to Battery Charger Lines
    When a 2 battery bank is wired in parallel there is a main positive and ground circuit that would run to supply power the trailer/vehicle. Those two circuits are where you attach the positive and ground of the charger like the NOCO # 329-GENIUS5 that you referenced.
    view full answer...
  • Can Two Batteries Wired In Parallel Receive a Charge at the Same Time
    You can use a battery charger such as the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 to charge a set of batteries that are wired in parallel however, the first battery will charge first. Once the first battery is charged it will then provide a charge to the second battery. I will say that charging the two batteries separately will be the fastest way to charge them.
    view full answer...
  • Does Wiring Change When Powering Accessories from Batteries Wired in Parallel
    Yes when you connect all of the accessories to the batteries wired in parallel you'd just need to use a standard gauge wire like what you mentioned to make the connections. We offer 10 gauge wire by the foot too with part # 10-1-1 also.
    view full answer...
  • Can a Battery Charger be Used to Charge a Deep Cycle Battery While Using Lighting in a Trailer
    Yes, you can use the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5, to charge a battery while using the lights in the trailer. One thing to keep in mind is that the battery charger will not be able to keep up with the lighting use in the trailer and the battery will eventually be drained if the battery is already severely depleted. It will not harm the charger. A better option is a charger that has a supply mode. The CTEK MULTI US 7002 12-Volt Universal Battery Charger w/...
    view full answer...
  • Battery Charger Recommendation for Two 6-Volt Batteries Wired in Series
    Since your batteries are wired so that the two 6 volt batteries are in series and produce an output of 12 volts the part # 329-GENIUS5 would be a great option. If you want to charge the batteries individually or if you want the total output to remain 6 volts, this charger will still work well for that application.
    view full answer...
  • Can Trailers Batter be Charged by 7-Way Trailer Connector
    The 12-volt accessory feed from the 7-way CAN be used to maintain your trailer-mounted battery during travel, but it will NOT recharge a battery from a depleted state. This is the pin in the 1:00 position of your 7-way which has 12 volts on it at all times. To charge a depleted battery, a charger like the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 can be used. The 10 or 12 gauge wire used in the accessory circuit will prevent enough current from going through to worry about...
    view full answer...
  • Can 12 Volt Accessory Circuit on a 7-Way Trailer Connector be Used to Maintain a Deep Cycle Battery
    The 12 volt accessory circuit on a 7-Way can maintain a battery, it just will not be able to charge it. Since we are talking about maintaining a charge, a regulator will not be needed since the 12 volt accessory circuit does not have the capacity to charge the battery. So it will not overcharge any of the cells. Since a deep cycle battery is designed to discharge most of its charge at once, I would recommend connecting the 12 volt accessory circuit first to a 40 amp circuit breaker,...
    view full answer...
  • Can 7-Way Trailer Connector On 2014 Ford F-350 Be Used To Charge Trailer Battery
    The wiring on a trailer connector is too small to charge a battery on your trailer. It can only maintain the charge level of the battery. You can use a circuit tester like part # 40376 to make sure the pin in the 1:00 position when looking at the connector 7-way trailer connector has current. You will then need to make sure the correct pin on the trailer connector is going to battery via a 10 gauge wire like part # 10-1-1 on the trailer. This would provide a maintenance charge to the...
    view full answer...
  • How Should 2 6-Volt Batteries Connect to 12 Volt Inverter
    I attached a picture that shows how 6 volt batteries need to be wired to be able to connect to a 12 volt inverter. You would need the output to be 12 volts and not 6. I recommend the charger # 329-GENIUS5 for your application because it can be used for your batteries individually or banked together as we've been discussing.
    view full answer...
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  • Can Two 12 Volt Batteries Connected in Parallel be Charged Through a Switch Using a NOCO Charger
    You can charge 2 batteries when they are connected in parallel using a battery charger such as # 329-GENIUS5. However, it will take longer to charge the batteries when they are connected compared to if you were to charge each one separately. The best battery charger to use for charging batteries in parallel would be # 329-GENIUS10. It has a higher amperage output and will charge faster. I have included a link to our FAQ article on battery chargers for you.
    view full answer...
  • Powering Hydraulic Dump on Dump Trailer
    If you are looking for something to power the dump on your dump trailer, I highly recommend an independent battery specifically for powering the dump trailer. We have a few different options for charging the battery on the dump trailer. Powering the dump off of the vehicle battery may put too much draw on the vehicle battery. One way you could charge the battery to power the dump trailer is using a NOCO Genius Battery Charger and Maintainer # 329-GENIUS5. This battery charger maintains...
    view full answer...
  • Can NOCO Genius Battery Charger and Maintainer Charge Batteries Wired in Parallel
    Our battery chargers like the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 that you referenced can be used to charge a battery bank wired in parallel as long as the output voltage is 12 volts. You'd run the charge wires of this to the main output terminals you use on both batteries for the power and ground and you'd be set.
    view full answer...
  • How to Run Maintenance Charge From Tow Vehicle to Trailer Battery
    People run maintenance charges through the 7-ways of the vehicle and trailer all the time exactly like how you described. A 10 gauge wire basically like part # 10-1-1 run from the battery of the vehicle to the battery of the trailer will give you a maintenance charge as you are towing. This is the easiest and most effective way to do this and you don't need a charger anywhere on the line. This charge will only be whatever your alternator is putting out that isn't being used by your vehicle...
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  • How to Install NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 in C5 Corvette
    The NOCO Genius Battery Charger and Maintainer # 329-GENIUS5, can be installed semi-permanently on your Corvette by using the included harness with ring terminals. This part of the charger kit is shown in the linked photo. I own one of these chargers and it works great for keeping my old Harley's battery topped off. You will wire the two ring terminals to your battery using the hardware already on it. Then when its time to garage and charge up the 'Vette you'll just need to plug in the...
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  • Does 12 Volt Power Circuit of Trailer 7-Way Have Ability to Charge Dead Battery
    The 12 volt power circuit of any vehicle's 7-way can only put a trickle charge on a trailer battery to maintain it. If you have a dead trailer battery you'd need to use a charger like the NOCO Genius Battery Charger and Maintainer # 329-GENIUS5 to get it where it needs to be and then let your trailer wiring keep it maintained.
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  • Can a NOCO Battery Charger be Used to Charge and Maintain Two 12 Volt Batteries for Extended Periods
    You can charge 2 batteries when they are connected in parallel using a battery charger such as # 329-GENIUS5. However, it will take longer to charge the batteries when they are connected compared to if you were to charge each one separately. And the first battery will get hot. But once charged the charger will go into maintenance mode so it will not overcharge the batteries. The best battery charger to use for charging batteries in parallel would be # CTEK56353. It has a higher amperage...
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