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Submersible, on-board smart charger draws power from a wall outlet to charge and maintain a 12V battery at 5-amps. Fully-sealed, waterproof construction is ideal for marine applications. Saltwater tested and ignition protected for safety.
Features:
Specs:
The rugged NOCO Genius GEN series on-board smart charger quickly charges and maintains a 12-volt lead-acid or lithium-ion battery. A single battery bank efficiently charges deep cycle and starter batteries up to 120 amp-hours. It's great for boats, trolling motors, generators, and a wide range of electric vehicles and industrial equipment. With a fully submersible design, this smart charger was built to handle harsh marine environments, while keeping your batteries in peak condition.
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.
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.
This Genius smart charger has 4 selectable charging modes that let you quickly switch between charging different lead-acid and lithium-ion battery types. 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 NOCO charger gives you the versatility to tackle different battery types and charging situations in one charger.
The charger works with 12V wet cell, gel cell, enhanced flooded, calcium, maintenance free, AGM, and lithium-ion batteries with battery management systems (BMS). A built-in battery desulfator restores lost capacity to sulfated and old batteries.
A set of 3/8" eyelets connect the charger to your battery. Over-molded connection points stand up to heavy usage and keep connections safe from the elements. Built-in 7.5-amp fuses protect each connection against dangerous overcurrent.
This Genius charger plugs into an available wall outlet to quickly charge and maintain multiple batteries. 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. Included hardware lets you mount the unit in an enclosed compartment, garage, or workspace.
The table above provides a quick reference for how long it will take the unit to charge batteries with various amp-hours.
This on-board charger was built to handle extreme marine conditions. The unit has an IP68 rating, which means it can handle being fully submerged in water, and it's protected against solid particles like dust or sand. Its ignition protected for safe and worry-free operation around marine engine compartments and fuel tank spaces. Saltwater won't cause issues either. The charger has been thoroughly tested to resist corrosion.
The housing is made from tough Lexan resin that protects the internal electronics against vibration and impacts. The unit can handle being dropped, kicked over, and just about anything else your day brings.
Available AC port plugs (sold separately) from NOCO let you easily setup your GEN series charger for plug-and-play charging with any extension cord. The plug creates a "pass through" AC charging port on a surface, so you can quickly connect to the charger when it's mounted inside a compartment on a truck, boat, trailer or RV. This allows you to easily access the charger for charging engine block heaters, trolling motors, batteries, and other equipment. A snap-fit cap creates a watertight seal to protect the connection whenever you're done.
Alternate Instructions
Customer Satisfaction Score:
100% were satisfied with this product
0% of customers were not satisfied
Ratings & Reviews
GOOD PRODUCT ON TIME DELIVERY GREAT
Had no problems with it at all was pretty easy to install
Great product at a decent price and shipped quickly.
Easy installation and a quality produc t.
Thanks for the prompt shipping
Works with alot of batteries and works like a charm.
Great product. Very easy to use & install. Helps prolong life of battery.
I put this unit on the three batteries in my class A motorhome last fall. It brought them up to a full charge and every time I've checked it this winter it indicates they are fully charged and the unit is in standby mode.
Noco 2x5 battery charger is very easy to install. Bought it for the bass boat. Compact size and lighter weight than others on the market simple to use. So far so good
Installed it with ease was going to use full time on the RV, called the company and said I should have bought a different one for permanent placement after being told it could. Works great just disconnect before moving the rig.
The NOCO brand of chargers, when properly applied, sre fantastic. Their several variations enable you to fit the charger to virtually any application, they are durable, easy to use, many are water resistant if not water proof. They have never failed our team in the many applications we use them. GREAT VALUE...
high quality items and fast service!
Outstanding battery maintainer especially for smaller batteries below group 31 including AGM.
Weather resistant that is simple to install.
Always great service from e-trailer with great customer service.
Installed on police vehicle fleet, due to constant dead battery's from electronic equipment drain. Excellent product.
Great charger for smaller batteries.
Both the charger and battery it's attached to are doing GREAT. You can't fail with a NOCO charger. We use them exclusively for our High Value Projects and Systems.
Michael
4/1/2025
NOCO chargers are dependable, durable, and maintain the proper state of charge without overcharging.
Great service, delivered promptly.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Mike
8/26/2025
We use the NOCO chargers exclusively for a range of special applications and size the according to the AGM battery size, the 5 amp variants for smaller batteries, and the 10 amp for our group 31 variants. Both do a great job of maintain a high state of charge and maintain the batteries without overcharging. They are one of the most dependable and durable chargers available.