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Submersible, on-board smart charger draws power from a wall outlet to charge and maintain a 12V battery at 10-amps. Fully-sealed, waterproof construction is ideal for marine applications. Saltwater tested and ignition protected for safety.
Features:
Specs:
The rugged NOCO Genius GENPRO series on-board smart charger quickly charges and maintains your 12-volt lead-acid or lithium-ion battery. A single battery bank efficiently charges deep cycle and starter batteries up to 230 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 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 15-amp MINI 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 GENPRO 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:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
I've only had it installed for a few weeks so far but it has worked like a charm so far. I have 1 lithium and 3 lead acid battery's and being able to charge them all at the same time is very convenient. Batteries have been ready to go for all day fishing every time I've been out
This was my first order with etrailer. Price was competitive and delivery was quick. I installed the unit and everything seems to be in working order. I am hoping for years of trouble free service. I did have a few online questions and they were answered in a reasonable amount of time
I received my noco 4 bank charger very quickly and is an amazing charger for my boat, etrailer had the best price around and they were very helpful in this purchase, only bad thing is I didn’t get the serial number to register the warranty before I mounted, thx etrailer.
This charger is well built, easy to install and really great if you have different battier type3s (Lead acid, Lithium, AGM) I looked at may different chargers to replace mine and this was a good decision.
Really nice charger for all battery types. Plug and play.
heavy built charger, i would purchase again if I need another one.
Only had the product for a couple of days but it seems to do exactly what is was intended to.
this is the ultimate unit for onboard charger installation on dump trailers with dual batteries
Great charger-maintainer for a group 31 AGM battery, I would caution it's use on smaller batteries, especially anything smaller than a group 24.
etrailer is a trusted vendor with great service, good pricing and product availability.
I can't wait to use this product with my existing 3 bank, we should have bought a 4 bank to begin with, but problem solved with your advice and products. Thanks
Great charger for HD High cca AGM batteries.
Maintains these batteries in the most demanding conditions and is highly weather resistant.
Great service from e-trailer with product on the shelf competitively priced.
Great charger for group 31 AGM batterie s.
Mike
8/26/2025
The NOCO chargers continue operate flawlessly. We now have 8 in active service in a couple of configurations and applications without any issues and doing a great job of maintaining AGM batteries at a high state of charge without over charging. NOCO are our choice when we have expect extended battery life and proper charge and maintenance of batteries.
Great Chargers used in many heavy duty applications
GREAT product, repeated purchase for use on many projects, durable, efficient, and very weather resistant. Competitively priced, great service from Etrailer.com.
GREAT chargers for heavy duty AGM batteries, we use them exclusively for all of our applications.
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Michael
11/17/2022
These chargers continue to provide excellent service well over their annual initial in service dates.