NOCO Genius GENM1 Fully-Automatic Smart Marine Battery Charger with 1 Bank and 4 Amps of Power Per Bank

Brian: Installed on my Dura max to keep the batteries topped off in the cold because it can sit parked for extended lengths of time so,far it seems to be keeping both AGM batteries topped up because it cranks very strong, one issue I ran into was the the ring terminal size so I cut off the noco ones and put smaller rings on. My truck has 6mm studs on the battery terminals,I wanted to use

Canada on Feb 05, 2020

Amazon Customer: I would definitely recommend this product. Now it is more than 6 months I installed this under my car hood. I had to struggle a little bit to install it under my Honda Pilot due to space issues. But after installation it is working perfectly. I did a lot of research on Battery Chargers, finally I went for this one. I am satisfied with this purchase. It is little heavy though but I think It is okay as it is waterproof and very tough. Also, quality is very good.

Canada on Sep 30, 2019

LR: This was one of the best purchases I have ever made! Since the day I purchased my Ford Focus 6 years ago I’ve had hassles with the battery going dead! If the car sat parked without use for a week or more at a time, it couldn’t handle that and died (particularly during the cold winter). Frustration followed almost every time I flew off someplace wonderful and warm during the winter and then arrived back to a car with a dead battery! It happened other times as well. I was about ready to sell the car! After hearing about smart trickle chargers ...I finally got smart too and after researching the options, I settled in on buying this little Noco GENmini1 on-board battery charger! That was a good, smart day!
So my story has turned on a dime and my car now starts like magic! If anyone is wondering whether this little charger works in subzero temperatures, (as it is not rated for that) - well here’s the test! I live in Manitoba where we’ve had frigid weather over the past couple of weeks. At the same time, my block heater, without any sense of good timing ..groaned ..decided to give up ..and stopped working! So a few days ago, the morning...

Canada on Jan 29, 2019

Matthew T. Small: just installed this in my truck yesterday 4/18/18 so far so good, i'll update as time goes by. UPDATE: 2/16/23 still installed on the same truck, has been used every night since installation on 4/18/18 and does a perfect job maintaining full charge on my dual odyssey AGM batteries. My truck is diesel and the vibration from the motor hasn't hurt it, though I do have it mounted to the side of the battery with a thick foam pad behind it to act as a damper. No issues ever since installation! would buy again in a heartbeat, though if I did I would have gone with the dual bank, though my one bank manages to maintain both AGM batteries which are wired in series. 10 Stars!!!

United States on Apr 19, 2018

Rob K.: Just what I needed for my Suburban. The battery would die in cold weather if it wasn’t started in a day or two. Took a little doing but I hooked it up and it’s working great. No issues at all. I plug it in when I pull in the driveway and just unplug it before starting it up. I ran the plug from the unit through the grill of the suburban and I have an outlet on the wall within 5 feet of where I park so I got a short heavy duty outdoor extension cord plugged in the outlet. I plug the two together and I’m good to go. What a relief. I constantly had to bring out my portable battery charger in the winter to jump it. I had my doubts but it works great.

United States on Jan 09, 2018

Jason C: Solid and reliable on-board unit! I have it installed on my 2007 Dodge Ram 2500 diesel and it easily keeps both batteries maintained and warm in the winter time, I use a multi-end extension cord and plug it in together with my block heater and have had no issue with blowing the breaker in the house on a 15amp circuit. My truck is a 2nd vehicle in our family and I only drive it once or twice a week(if im lucky!) but when I need it, I need it to start reliably, so I rely heavily on this unit to keep my batteries charged for the really cold days we experience in Saskatchewan!

Even though this is advertised as a "1-bank" charger it still keeps both batteries in my truck equally charged as they are wired in parallel, so even though I only have the ring terminals attached to one battery, It charges both through the trucks factory wiring.

It is probably oversized for my application, but I had went through 2 of the cheaper 1amp on-board chargers before I bought this unit, wish I would just went with this one in the first place, as the little ones just didn't last with the vibrations of my truck.

It is fully sealed and im sure it could be fully...

Canada on Jan 04, 2017

Stéphane B.: I have 3 of those units: 1 for the boat, 1 for the truck and 1 for the car. They are doing a perfect job. even if the vehicle has not started for 1 month, you turn the key and all the battery power is available to start quickly! When I received the unit, there was a small sign of sticky liquid close at the boot where the cable enter the unit. I'm thinking this was probably just one residue of 1 component of an Epoxy glue but just to be on the safe side, I contacted NOCO to ask if the product was still safe to used. They very answered me and told me that they would authorize a replacement unit just to be on the safe side. I received it from Amazon within 2 days and shipped the original one in the same packaging and a prepaid shipping. I was very satisfied with both NOCO and Amazon on this. I installed All the units with the quick plug socket  NOCO Genius GCP1 Black 13 Amp 125V AC Port Plug . It make a very clean and discrete installation and it's faster to just plug/unplug the extension cord in your bumper instead to have the cord hanging below your car or having to lift the hood every time you want to connect/disconnect.

United States on Oct 27, 2016

Vincent Adultman: No complaints so far. I bought this to use as a bench-top charger in my shop (for topping up the RV batteries at home, since I don't have power where I store the RV). Works great. Good solid build quality. Seems to be a better deal than the non-onboard ones (more charging current). No battery clamps, but that can easily be fixed if that's what you want. I prefer the ring terminals as there is no chance of them popping off the threaded posts on my RV batteries.

This thing is dead quiet. Gotta love that. Might have to get a higher current one to replace the loud old charger.

This was a better deal from Amazon than I could get locally. Plus with Prime it showed up plenty quick.

Canada on May 25, 2016

Riley W: Second one ive bought so far and im in love. NOCO is the best of the best. Keeps my XJ charged and ready to go at a moments notice. This one was bought for my 96 ram which is not my daily driver. The only problem I have had with it is it will set my alarm off after a little while of it being plugged it. It makes the alarm think the shock sensors are being triggered. Not sure why but it still gets the job done. In the process of switching all my battery charging needs to NOCO. I highly recommend you get a extension cord adapter so all you need to do is walk up the vehicle and plug the female end of an extension cord in and you're all set. No need to open the hood at all! Just make sure you mount it in a place that you wont forget to un plug it when you go to drive off. (ex. My Ram is on the rear bumper and the XJ is mounted on the front fender.

United States on Mar 31, 2016

Jeffrey A. Laman: Some reviews were less than positive on this charger/maintainer but after installing and charging the battery on my 26ft sailboat, I am really pleased. The charger is completely encased and appears waterproof as claimed. Installation is 4 wood screws (provided). Done, plug it in and away it goes. It has safety features for reverse charging, etc. that are useful. Directions do warn against mounting above battery, but I suggest a purchaser use common sense. Most batteries are sealed, in a reasonably vented space. The unit is also sealed. The terminals that connect to the battery are of the size (didn't measure diameter but about 3/8 to 1/2) needed to fit on the threaded stud of a standard marine battery. Some have complained that this is a problem for their battery. But all the marine batteries I have ever owned have had two threaded studs and this is designed to fit over that -- worked as intended for me. Now I can leave my boat unattended and be confident the bilge pump, etc. can run without discharging the battery. I strongly recommend.

United States on Jun 07, 2014