$49.94

NOCO GENIUS2, 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Temperature Compensation

5 out of 5
SKU:B07W6B987F Category:
  • Description
  • Reviews (3)

Description

Introducing the all-new GENIUS2, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS2 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 2-amp for all types of lead-acid and…

3 reviews for "NOCO GENIUS2, 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, and Battery Desulfator with Temperature Compensation"

  1. :

    I will get to how this charger performed in just a moment, but first, let me just say if not for other reviewers alerting me to what to expect, I would probably have returned it as defective just like apparently a number of other people purchasing it for the first time and this is entirely the fault of the manufacturer sending it out with instructions written by people who clearly know the product inside and out, but relative to why and how most people buy it, could not possibly be less helpful, hence my rating of a 3 only out of 5.Lets begin with the basics; for all of its advanced features, this is only a 2 amp charger, there is a general formula described in the instructions to calculate charging times depending on the capacity of the battery and most people buying it because of its low price have no idea that under ideal conditions this thing will literally take days to bring back a typical 12 volt AGM battery, in the course of bringing a battery back while desulfating the indicator will cycle back and forth from charging to defective meaning you have to keep starting it and restarting it until it remains charging and nowhere is this spelled out for the benefit of most people trying it out for the first time–so there, that’s the first thing.The second thing the instructions don’t make clear is how to access ‘force mode’; the instructions say to press and hold the mode button for 5 seconds (the video says 7 but hey, why nitpick?) and try as I might I could not seem to make it work, which is apparently a real big deal if the battery, like mine, was fully discharged at the time, until I accidentally happened to try it before connecting it to the battery and darned if it didn’t work then–pay attention now–to utilize ‘force mode’ the charger has to be plugged in to an outlet, but NOT connected to the battery at first and judging from other reviews, there’s a lot of people who never figure it out and once again, you won’t find this either in the instructions, so for all the forgoing reasons I cannot give this product my highest rating, even though technically it delivers everything it promises–yes, that’s right.So you wanted to know how the thing actually works once I actually figured out how it works? In a word–once you get past the instructions, or the lack of which thereof, it is simply an amazing product for the price!!How amazing? My 90 amp something 12 volt AGM battery was completely discharged and sulfated up the yang when I hooked it up on a Tuesday evening, and at first it would only manage a few hours charge before giving up with a defective battery/will not hold charge indicator–but each time I hooked it back up it was able to run a little bit more and I hoped after it ran for 12 hour stretches that it was finally turning the corner, but it was still not able to hold a charge through Wednesday when I came up with a way to make it run in ‘force mode’ (see above) and sometime around Friday evening it finally made it past the first indicator bar, and by Saturday evening it made it past the orange bar and as I write this on Sunday evening the green indicator is flashing–it has been well over 100 hours, exactly as the formulas out there suggest, but the battery looks to be well on its way to being fully restored–YES!!Now if they could just fix the documentation…

  2. :

    I will get to how this charger performed in just a moment, but first, let me just say if not for other reviewers alerting me to what to expect, I would probably have returned it as defective just like apparently a number of other people purchasing it for the first time and this is entirely the fault of the manufacturer sending it out with instructions written by people who clearly know the product inside and out, but relative to why and how most people buy it, could not possibly be less helpful, hence my rating of a 3 only out of 5.Lets begin with the basics; for all of its advanced features, this is only a 2 amp charger, there is a general formula described in the instructions to calculate charging times depending on the capacity of the battery and most people buying it because of its low price have no idea that under ideal conditions this thing will literally take days to bring back a typical 12 volt AGM battery, in the course of bringing a battery back while desulfating the indicator will cycle back and forth from charging to defective meaning you have to keep starting it and restarting it until it remains charging and nowhere is this spelled out for the benefit of most people trying it out for the first time–so there, that’s the first thing.The second thing the instructions don’t make clear is how to access ‘force mode’; the instructions say to press and hold the mode button for 5 seconds (the video says 7 but hey, why nitpick?) and try as I might I could not seem to make it work, which is apparently a real big deal if the battery, like mine, was fully discharged at the time, until I accidentally happened to try it before connecting it to the battery and darned if it didn’t work then–pay attention now–to utilize ‘force mode’ the charger has to be plugged in to an outlet, but NOT connected to the battery at first and judging from other reviews, there’s a lot of people who never figure it out and once again, you won’t find this either in the instructions, so for all the forgoing reasons I cannot give this product my highest rating, even though technically it delivers everything it promises–yes, that’s right.So you wanted to know how the thing actually works once I actually figured out how it works? In a word–once you get past the instructions, or the lack of which thereof, it is simply an amazing product for the price!!How amazing? My 90 amp something 12 volt AGM battery was completely discharged and sulfated up the yang when I hooked it up on a Tuesday evening, and at first it would only manage a few hours charge before giving up with a defective battery/will not hold charge indicator–but each time I hooked it back up it was able to run a little bit more and I hoped after it ran for 12 hour stretches that it was finally turning the corner, but it was still not able to hold a charge through Wednesday when I came up with a way to make it run in ‘force mode’ (see above) and sometime around Friday evening it finally made it past the first indicator bar, and by Saturday evening it made it past the orange bar and as I write this on Sunday evening the green indicator is flashing–it has been well over 100 hours, exactly as the formulas out there suggest, but the battery looks to be well on its way to being fully restored–YES!!Now if they could just fix the documentation…

  3. :

    NOCO battery charger fully charged my car battery. I parked my car at my front yard during quarantine and the battery was very low so I used it to charge the battery. Too bad the power cord couldn’t reach to an AC outlet from the house so that I have to use with 9 food long cord AXTRA power strip to deal with the battery charger. This unit simply makes the charger itself sit nicely under the hood with included mounting strap.NOCO battery charger and maintainer combo come in at a budget price with some advanced, smart features to protect the battery, your vehicle and possibly yourself. As a result, this is a good maintainer option to consider if you want something that takes away the danger and challenge of bringing an automotive battery back from the dead. Its portable size also makes it a great option to bring around on trips.The 2-Amp battery charger and maintainer that works with all types of 6- and 12-volt lead-acid batteries. This versatile all-in-one battery charger and maintainer is ideal for keeping your vehicles fully charged and maintained all year long, especially during long-term storage. It’s extremely easy to use as well, simply plug it in and let the NOCO will automatically monitor and maintain your car’s battery. The optimized charge mode is designed to safely charge your battery, using advanced charging technology to monitor and maintain your battery. It’s safe to leave this plugged in and maintaining your battery all year round, as the onboard microcomputer will minimize energy consumption. The rubberized base is designed to both avoid slipping, and protect any surface the battery maintainer is sitting on from being scratched.In addition, this product offers an advanced desulfator repair mode that can help reverse the damaging effects when a battery is left uncharged for an extended period of time. Safety features include sparkproof technology and reverse polarity protection. Force mode feature is awesome to detect low voltage on a battery to start recover process. Usually a low voltage battery would be 1V-4V. Noco claims the charger can charge a dead battery as low as 1-volt. To access force mode, please ensure the charger is connected to AC outlet, press and hold the mode button approximately 7 seconds.

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