Manufacturer | NOCO |
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Brand | NOCO |
Model | GEN2 |
Item Weight | 9.06 pounds |
Product Dimensions | 1 x 1 x 1 inches |
Item model number | GEN2 |
Is Discontinued By Manufacturer | No |
Exterior | Painted |
Manufacturer Part Number | GEN2 |
Lift Type | 12v |
Amperage | 20 Amps |
Voltage | 12 Volts |
NOCO Genius GEN2, 2-Bank, 20-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger and Battery Maintainer
Brand | NOCO |
Color | Black |
Product Dimensions | 9.37"D x 11.02"W x 6.3"H |
Item Weight | 9.06 Pounds |
Output Voltage | 14.4 Volts |
About this item
- A 20 amp (10 amp per bank) on-board battery charger for charging and maintaining two 12-volt batteries independently.
- Safely charge all types of lead-acid batteries from 25-230Ah, including wet, gel, AGM, and deep-cycle batteries.
- Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection.
- Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.
- One of the most advanced battery chargers in its class, which is certified to UL1236, ISO 8846, 33 CFR 183. 410, plus backed by a 5-year.
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This Item NOCO Genius GEN2, 2-Bank, 20-Amp (10-Amp Per Bank) Fully-Automatic Smart Marine Charger, 12V Onboard Battery Charger and Battery Maintainer | Recommendations | dummy | dummy | dummy | dummy | |
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Price | Currently unavailable. | $229.99$229.99 | $110.99$110.99 | -35% $37.52$37.52 List: $57.99 | $169.85$169.85 | -20% $99.95$99.95 List: $124.95 |
Delivery | — | Get it as soon as Monday, Apr 1 | Get it as soon as Monday, Apr 1 | Get it as soon as Monday, Apr 1 | Get it as soon as Monday, Apr 1 | Get it as soon as Monday, Apr 1 |
Customer Ratings | ||||||
Easy to install | 4.7 | 4.8 | — | — | — | 4.3 |
Tech Support | 4.1 | 4.5 | — | — | — | 3.9 |
Sold By | — | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
input voltage | 240 volts | 120 volts | 24 volts | 12 volts | 12 volts | 120 volts |
specification met | — | — | Cec Certified | cec certified | — | UL, CEC, FCC |
weight | 9.06 pounds | 7.2 pounds | 1 pounds | 1 pounds | 6.6 pounds | 3.99 pounds |
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From the manufacturer
Features built into every NOCO Genius On-Board Charger
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IP68 Waterproof100% completely sealed, protects against extreme working environments & rated at IP68. |
SafeProtects against reverse polarity, sparks, overcharging, overcurrent, open-circuits, short-circuits and overheating. |
FirewallMulti-level safety barrier prevents unsafe and abnormal conditions. |
OptimizationStabilizes internal battery chemistry for increased performance and longevity. |
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FastCharges two times faster than traditional battery chargers. |
RecoveryApplies a high-voltage pulse charge when low-voltage, sulfation or lost capacity is detected. |
InteractiveAlters the charging process based on organic battery feedback. |
Ignition ProtectedNon-igniting and temperature controlled for safe and worry-free operation. |
Product Description
The GEN2 On-Board Battery Charger offers the perfect mix of high-technology and rugged construction. With a fully-sealed, waterproof housing, the GEN2 can be easily installed and mounted directly onto a variety of applications and specifically designed for tough marine environments. Its waterproof design is capable of withstanding submersion down to 3-meters for extended periods of time without failure, and rated IP68 and NEMA 6P, providing continuous operation in the most extreme environments. The GEN Series On-Board Battery Chargers are some of the most advanced charging technology in its class. Utilizing the latest topology and power design, it is one of the most compact and lightweight battery chargers. Its onboard processor is capable of detecting, diagnosing, recovering, charging and maintaining all types of lead-acid batteries. Safely charge Wet Cell (Flooded), Gel Cell, AGM and Deep-Cycle batteries with zero overcharge. Plus, it protects against reverse polarity, sparks, short circuits, open circuits, and thermal runaway. And the GEN Series On-Board Battery Chargers are completely automatic. It continuously monitors the battery - while detecting any potential battery problems - shutting off power when the battery is fully charged, but observing the battery for optimal battery maintenance. Not only do the GEN Series On-Board Battery Chargers have advanced safety features, but have also been tested and certified by multiple third-party laboratories, including Underwriters Laboratories UL1236, ISO 8846 Marine Standards, and Ignition Protection US Coast guard 33 CFR 183. 410. And all of this is backed by our 5-Year Limited warranty. Other commonly used search terms: 2 bank marine battery charger, 3 bank marine battery charger, 4 bank marine battery charger, battery charger for boat, boat battery charger, boat battery charger 2 bank, marine battery charger, marine battery charger 2 bank, noco boat battery charger, noco gen battery charger, noco onboard charger, on-board battery charger, onboard battery charger, onboard battery charger for boats, onboard marine battery charger, rv battery charger, waterproof battery charger, waterproof boat battery charger, waterproof marine battery charger, waterproof marine battery charger.
Product information
Technical Details
Additional Information
ASIN | B003JSJS5I |
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Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #393,997 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #86 in Boat Battery Chargers |
Date First Available | January 27, 2010 |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, appearance, ease of installation, charging and value of the battery charger. For example, they mention it works great at keeping their batteries charged, it's well built and easy to mount. They appreciate the quick charging speed and the fact that it automatically charges and goes into maintenance mode. That said, they say it'll recharge overnight and is good value for money.
AI-generated from the text of customer reviews
Customers like the quality of the battery charger. They say it works great at keeping their batteries charged and is easy to hook up. Some customers also say that it solves their battery problems and keeps the batteries charged up properly. Overall, customers are satisfied with the quality and performance of the product.
"...the feature that cleans the plates in the batteries, which helps the battery life a lot and extends their peak performance...." Read more
"...with my voltmeter for the first few weeks and it has continued to perform flawlessly. This may be the best on board charger I have ever owned...." Read more
"...It keeps the batteries charged up properly and I never have a problem with the lift as I used to. Works well!..." Read more
"...Just plug it in and it works. Bravo NOCO, finally a company that gets simplicity and durability." Read more
Customers like the appearance of the battery charger. They say it's well built, has top notch technology, and is a great piece of equipment. Some customers also mention that the LEDs turn green and the chassis batteries have been solid ever sense.
"...The quality is fantastic, fully sealed for marine environments and size is smaller than most other units of equal amps...." Read more
"...considering investing in another DualPro - but they are high quality units and carry a price premium that reflects that quality and brand name..." Read more
"...Nothing comes close to this. Great piece of gear, totally waterproof, silent, and easy to install. Just plug it in and it works...." Read more
"...Durable connections and strong case, very glad I went with this unit and plan to upgrade my 10a single bank to another 20a dual bank when I add..." Read more
Customers find the installation of the battery charger to be easy. They mention it's easy to mount, connect, and use. Some say that retrofitting their scissor lift was easy with this replacement battery charger. They also say that the truck starts effortlessly and that the tech support was great when they had questions about the product.
"...The guys at NOCO built a product that is as simple to install as hooking up a few wires and plug it in and it does the rest...." Read more
"Retrofitting my scissor lift was easy with this replacement battery charger which took about 1/5th the space the original on board charger did...." Read more
"...Considering the installation spot, installation wasn't too bad...." Read more
"...Great piece of gear, totally waterproof, silent, and easy to install. Just plug it in and it works...." Read more
Customers like the charging of the battery charger. They mention that it charges their batteries quickly, even in bright sunlight. It automatically charges and goes into maintenance mode. Some say that it fully charges with battery conditioning in mind. Overall, most are satisfied with the charging capabilities of the product.
"...has a programmed chip inside to calculate, control, and vary the charging cycle amperage to accommodate the state of each individual battery...." Read more
"...The Genius has multistage charging typically found in much more expensive units...." Read more
"...2 banks @ 10amps per bank. It automatically charges and then shuts off and goes into a "mainatain" mode...." Read more
"It is fast and a very solid unit. It is much heavier duty than I thought it would be...." Read more
Customers like the value of the battery charger. They mention it's the best charger bang for your buck, works great, and is a good investment. Some say it'll give you great power output for the money.
"...It's worth every penny! The features can't be ignored." Read more
"...The charger is small and light and give great power output for the money. 2 banks @ 10amps per bank...." Read more
"...to say, the batteries are shot, the charger is going overboard, money lost, lesson learned. Never Ever buy a Noco Charger again!!!!" Read more
"...This was worth every penny....." Read more
Customers are mixed about the brightness of the battery charger. Some mention that the two green LEDs are quite bright and cool, while others say that the lights on unit were flashing in an irregular fashion. Some customers also report that the indicator lights are difficult to see in daylight.
"...THe charger kicks in when shore power is attached. The red light remained lit overnight and you could hear the fluid bubbling...." Read more
"...epoxy, weather proof, temperature proof, and has two green leds, quite bright, that come on when the batteries are at 100% capacity...." Read more
"...The replacement one stopped working the other day, no lights, just dead. Tried to get warranty replacement as stated under 5 year warranty...." Read more
"...The bank 2 LED would stay red while bank 1 turned green in 10 minutes...." Read more
Customers are mixed about the compactness of the battery charger. Some mention that it fits into small spaces and gives great power output for the money, while others say that the leads are a little short.
"...quality is fantastic, fully sealed for marine environments and size is smaller than most other units of equal amps. I can only say thanks to NOCO...." Read more
"...The only dilemma was that the leads are a little short for what I needed to do. The installation instructions say to not alter the charger...." Read more
"...The charger is small and light and give great power output for the money. 2 banks @ 10amps per bank...." Read more
"...I do agree with some of the reviews is that the power cord is a little short, but really no problem or issue for my application...." Read more
Customers are dissatisfied with the performance of the battery charger. They mention that it stopped working, one of the leads stopped working and that it didn't even last a year.
"Jury is still out, 1 year and 2 days after I purchased this, it decided not to work in the middle of Lake Powell...." Read more
"...No need. The next time I plugged it in it didn't work at all...." Read more
"...The replacement one stopped working the other day, no lights, just dead. Tried to get warranty replacement as stated under 5 year warranty...." Read more
"I have had two of these, on the first one, one of the leads stopped working...." Read more
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I have mine set up for two batteries, and that means the charger has four wires, a positive and negative for each battery, so my two battery system needed a "two bank" charger.
Multiple battery installations require one pair of wires from the charger to each individual battery. Generally you can get one to four "banks" on a charger. Each one charges a 12 volt battery at ten amps.
It is well sealed with epoxy, weather proof, temperature proof, and has two green leds, quite bright, that come on when the batteries are at 100% capacity. Two different leds show a red color while still charging, so it's hard to get mixed up.
This unit drops amperage in predetermined levels several times during the charge, ending at a trickle charges after the batteries are fully charged. This prevents overcharging, overheating, and lowering of battery fluid levels from heat, during the charging process. It also has the feature that cleans the plates in the batteries, which helps the battery life a lot and extends their peak performance. I don't know how it works...I don't care, as long as it keeps those expensive marine batteries alive and happy.
I wanted a battery charger smarter than I am, one I could plug and forget, even during rain, wind, heat of summer, to below freezing temperatures, and that's what I got. It has worked flawlessly.
You can find cheaper charges, but eventually that savings will be lost on more frequent battery change-outs, or worse, battery failure out on the lake. Just buy the best, and forget about having to worry whether it's doing its job correctly, and having to run out and undo the leads when the battery is full, to avoid overcharging.
I am impressed with the fact that this charger has a programmed chip inside to calculate, control, and vary the charging cycle amperage to accommodate the state of each individual battery. While it's best to use batteries with the same amp hours of capacity, some of us can't go out and drop over a hundred dollars on a new battery just to match capacities. I've mixed 90 amp hour and 115 amp hour batteries, and have had no problems whatsoever with this "intelligent" charger.
I'd recommend this charger. I'm very happy, and trust it to perform without fault for as long as I have it. It's already been through deluge rainfalls several times without fail, high wind conditions, and cold nights. It simply waits there for the battery to indicate its needs, then it comes to life.
It's worth every penny! The features can't be ignored.
NOTE: If you appreciated this review please give it a “thumbs up/like” your helping me to continue to give honest/unbiased insight into products I’ve used and you may have questions about. Interested in a product but don't know enough about it and would like it reviewed? Please let me know and I'll see what I can do... Thank you 🙏
Top reviews from other countries
I vowed to never again destroy batteries. Insert Noco. I own tons on their chargers since they keep batteries living. They don't just dump electrons in that aren't wanted. They are smart about it. Over time this device will save batteries. I completely disconnected the on-board charger, and it wasn't an easy project. I then hooked this directly to the two batteries instead.
In my first few trips I find it to be slightly less powerful than the old Jayco charger, but it also isn't roasting batteries. I've also added a Noco solar charger to keep the batteries topped up when it's in storage. Overall love NOCO products and will keep buying.
I see since I purchased this then came out with a new Gen III version.
Reviewed in Canada on July 19, 2021
I vowed to never again destroy batteries. Insert Noco. I own tons on their chargers since they keep batteries living. They don't just dump electrons in that aren't wanted. They are smart about it. Over time this device will save batteries. I completely disconnected the on-board charger, and it wasn't an easy project. I then hooked this directly to the two batteries instead.
In my first few trips I find it to be slightly less powerful than the old Jayco charger, but it also isn't roasting batteries. I've also added a Noco solar charger to keep the batteries topped up when it's in storage. Overall love NOCO products and will keep buying.
I see since I purchased this then came out with a new Gen III version.