NOCO GENIUS10, 10A Automatic Smart Charger, 6V and 12V Portable Automotive Car Battery Charger, Battery Maintainer, Float Charger, Trickle Charger and Battery Desulfator with Temperature Compensation

This is not a UK version, something that really should be made clear. Still, it was simple (if tedious) enough to fit a UK plug. No earth wire - not sure if that's an issue, but I'm not an electrician. Works just the same as the Genius 5 I already have, charges fairly fast and well, and with no fuss. It tops my fairly big battery up in a few hours. It works, and reliably. My car starts strongly every time, even after a long period of lying then given a top up charge. Enough said. Excellent charger, quicker than the Genius 5 (which still did the job, only slower) but annoying that I had to read the small print to realise I'd been mis-sold a US version.

Brilliant bit of kit. Essential for my ancient Range Rover.

Very pleased with look and finish of Product. If the assories and adaper plug were included to make a superb one stop package, willingness to pay a little extra woud appeal. Overall a Quality product.

Got this on a deal. Usually quite a bit more expensive. Have several batteries that need maintaining and this does the trick. Did a fair bit of reading up on the Noco and the CTEK optimisers. Bang for buck, multiple battery types (gel,lead,etc) and waterproof put this ahead. NB. Noco do 1A, 2A and 5A optimisers as well. Depends on your needs.

This looks and feels quality, and is doing the job- it should I suppose as it is not cheap. My only gripe is there is no UK plug so I had to use an adaptor.

I liked it very much. The only thing I need to buy extra is an EU/US plug to the UK from the local store.

… easy to use and good value…

I am an amateur of knowledge about batteries. And this device meets all my requirements.

I recently tried out the NOCO Genius10 Smart Battery Charger on my Jeep Rubicon, and I have to say I’m pretty impressed. Since I live in a townhouse, I powered it up using my Jackery Power Station, which made it super convenient—no need for a long extension cord or anything like that. It took about three hours to bring my Jeep’s battery from roughly 40% up to about 90%, which is pretty much exactly as advertised. Overall, it was really easy to use and did exactly what it promised, so I’m definitely happy with it. Updated 11/29 I have to say. This is by far one of the best products I have used in a long time. It just WORKS. And just as the Manu said it would. It's sad that I even have ot say this but that shows you the state of consumer products. NOCO really hit this out of the park with ease of use, reliability and hardware. It reminds me of Apple Hardware with the build quality. This is being used with my 23 Rubicon. Its not my daily driver - I normally use it when I have a drone contract and am out in the middle of nowhere. So, the battery does not get fully charged and sits quite a lot. I purchased the "NOCO GC008 X-Connect M10 XL Eyelet Terminal Accessory" instead of using the Terminal clips. For a Jeep, I have to unlock the hood latches, open the hood, connect the clips and then close the hood until its charged. Without a garage this can be a headache with weather. The Eyelets solve the problem. I ran a 14Guage wire from the battery to the floor inside the cab. This way the cable is always connected and all I have to do is plop the Power Station on the seat and plug in the Genius 10. I had a chance to try out the system today and wow, talk about easy. This is truly a life saver and knowing my battery is topped off and maintained makes all the difference for me. --NOCO now has a customer for life. --

Even I got issue with the item, they sent a new one to. Thanks!

42 years as a mechanic and I have to say I’ve used all kinds of chargers in my life, and the Noco genius is absolutely the top tier of all. set it and forget it. The smart feature of the charger does it all for you. Today’s batteries are quite sensitive to voltage whether it’s a lead acid or an AGM battery too high voltage or too low of voltage output from a charger you don’t realize it, but it will damage the batteries as it charges. AGM‘s are especially sensitive to this. When charging the Noco automatically adjust voltage output and the amperage output as the battery begins to top off preventing damage and allowing the battery to top off fully at its maximum capacity, which is very important on lead acid batteries. This is where cheap to mid range battery chargers don’t work properly. They often continue to flow even when the battery is topped off at quite a high voltage damaging the battery. This charger also incorporates a desolfation mode that can bring most discharge batteries back to life it also incorporates a forced charged mode that will allow it to charge a battery that is down to one volt which most other brands of chargers will not do smart charger or not. These chargers are very well-made. The plastic is not cheap and is very strong. It has good weight to it. The power cable leads our 16 gauge so they are quite thick. The clamps are copper that is plastic covered, but are extremely solid and durable I’ve been using them for years and have never had an issue. The ambient temperature sensors on these chargers are also another strong point as they actually work properly, allowing a battery that’s in a vehicle in cold weather conditions to top off faster and better and then it will keep it there ensuring a strong start to next morning. For those that want the very best charger that will outperform anything else in its category look no further this is the one along with the three-year warranty that backs it up if something should go wrong. I highly recommend this product. You will not be disappointed so spend the extra money and get the best. You’ll have it for 20 + years

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I wasn’t expecting to become that person who gets excited about a battery charger, but here we are. I bought the NOCO GENIUS10 after my car battery kept dying during cold mornings, and it’s been a total game-changer. Setup was super easy — plug it in, connect the clamps, and the charger does the rest. I love that it’s fully automatic and smart enough to figure out whether I’m charging a 6V or 12V battery without me fiddling with settings. The safety features are reassuring too — no sparks, reverse polarity protection, and it even compensates for temperature, which is perfect given how hot it gets where I live. What really impressed me is the battery desulfation mode. I had an old battery that was barely holding charge, and this charger managed to revive it enough to get me through a few more months. If you want something reliable and worry-free to keep your car battery healthy, this NOCO Genius charger is worth every penny.