NOCO GENIUS5: 5A 6V/12V Smart Battery Charger – Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

Really impressed with this charger. It’s super easy to use—just hook it up and it pretty much does everything on its own. I like that it works with both 6V and 12V batteries and even different types like AGM and lithium, so it’s pretty versatile. It’s also compact but still powerful, and I’ve used it to bring a weak battery back to life without any issues. The automatic maintenance mode is a nice touch too since you can leave it connected without worrying about overcharging . Overall, solid build, reliable performance, and great for keeping your car or motorcycle battery in good shape.

Works great, easy to use and use it mainly to bring my car battery back to full strength as I don't use it that often. I like the mounting bracket. Mounted it on my wall, but I did add a spacer underneath it because the charger gets pretty warm/somewhat hot, thus allowing air flow all around it. The small size & weight is great. The alligator clips are very good and adhere to the battery very well. Its obviously slower that my large 10 amp charger as should be expected, so if your looking for faster recoveries and less need for a trickle charger, get the 10 amp version. I am leaning into getting one to replace my old 10 amp charger.

11/17/2022: Saved me from my very tired self, once again... totally dead battery in my car after leaving the trunk open slightly for a week... hooked this up after giving it a cursory jump with the TackLife T8 and left it to do it's thing. My battery is now in maintenance mode. What a wonderful helper. 4/29/2021: Every time I start my mower I am in awe all over again. The battery performs better than it did last year and the year before. My mower starts quickly now without hesitation and I am so thankful. For someone else, this may not be your solution, but for me, a senior on her own, this was far easier than replacing the battery, and now I have it to use for my auto battery that doesn't get that much use. 4/20/2021: Took a bit of work to repair the damage to my lawn tractor battery that I caused, but I'll be darned, it worked! Ran it through a charge cycle that didn't seem to do anything and I wasn't optimistic, but I was persistent. Did another charge cycle that it completed, I think, and then the next day ran the repair. The following day I did yet another charge cycle and tried to start it up and I'll be darned, it worked! All the damage I did, my negligence, this great gadget fixed. Nothing else I own, Battery Tender, Jump n Carry, etc. would do anything. I bought a different jump starter, TackLife T8 Pro, that actually got it started but all that did was show me how truly dead the battery was. As soon as I turned off my mower it wouldn't start again. Noco Genius5, and the steps I took, solved that. It wasn't fun since I'm disabled, and it was time consuming, but the end result is what I wanted and needed. Very satisfied customer. A note about the manual... boy does it need to be fixed. Nothing matched what went on at any stage of my repair and charging. My persistence and a lot of finger crossing made up for really horrible instructions. 4/11/2021: My lawn tractor battery is in a disgraceful state and it's my fault, combined with continual rain since October that prevented me, due to poor health, from taking the steps necessary for year-end maintenance. Big surprise, totally dead battery with 0 volts that nothing I had on hand could resurrect. Tried jumping it with my Jump n' Carry and it didn't. Next tried jumping with the TackLife T8 Pro and, boom, it started. Wouldn't restart and maintain the start so I grabbed the NOCO Genius5 that I bought at the same time as the TackLife. Yesterday I was very discouraged because lights on the Genius5 didn't appear to be working per the manual. Tried it just now and it's responding, led-wise, as it should and appears to be charging. Truth told, totally my fault, I should be buying a new battery, but, physically, I can't do what it takes to do that. Single senior here and my son is on the other side of the country under no-travel orders, so my life is what it is. I must get by whatever means. Really hoping this works. If I can get it charged again I'll ride this battery as long as I can and then get a new one.

Perfect for what I needed. Very easy to use and works well. It does take some time depending on your battery but worth the price.

The NOCO GENIUS5 does exactly what it’s supposed to do. It charges my older vehicle’s battery quickly and efficiently. I noticed it works faster and more reliably than the cheaper charger I own. It’s is more compact, well-built, and feels like a quality product that’s designed to last. However, I do wish it came with an instruction guide explaining its functions and indicators. As someone who isn’t particularly knowledgeable about cars, having clear instructions would have made things easier. My cheaper charger actually came with a very helpful guide, so I was a bit surprised that this one didn’t. I ended up having to look online to make sure I was using it correctly and safely. Another thing I notice is that the button is not as intuitive. There's a delay when pressing the button. That said, once I understood how it worked and managed my patience, it performed flawlessly. I just wish the user guidance matched the quality of the device itself.

I've used Schumacher SP1296 trickle chargers for many years now, on multiple vehicles and pieces of equipment. Recently I switched all of them to the NOCO GENIUS5 and it's better in every way! On all of the Schumacher chargers I've had, (and that's been a LOT of them) the cord has eventually frayed and broken where it exits the charging unit. On the NOCO, the cord has a rubber reinforcement where it exits the unit, extending the life of the cord. I've included photos of the NOCO (black) and the Schumacher (red) for reference. The Schumacher chargers I've had were dependable and functioned well, but their cord design was a major design flaw for me. Multiple times, It forced me to replace the units before I should have needed to buy new ones. The NOCO is slightly heavier and more compact in size than the Schumacher. The control has more functions and is easy to use. The NOCO display is aesthetically more pleasing and easier to read than the Schumacher. The NOCO also has an on/off switch which is nice. I always use the eyelets to connect to the battery. The charger connection to the eyelet cord has a click type plug to lock it in place, unlike the Schumacher which just presses together. Should you want to use the battery clips, the NOCO clips are bigger and stronger than those on the Schumacher. The only negative aspect of the NOCO that I found was that, according to their user manual, "This product is designed to work in ambient temperatures between -4°F and 104°F". This has not been a problem for me, even when used outside in northern Vermont. It does get below zero here, but typically not for extended periods of time. As long as the charger is kept on the battery, and it's always fully charged, that temperature limitation hasn't been an issue for me. Overall, the NOCO GENIUS5 appears to be a higher quality and better built charger than the Schumacher SP1296. I am very satisfied with their product, and I highly recommend it.

Hooked it up and it went to work and within n a couple of hours my car battery was fully charged and on green and holding! Super glad I bought this model! It’s small and easy to use

This battery charger brought an AGM battery back from about 25% charge. I like the multiple connection options and the ease of use. The charger can also be used as a trickle charger and also be mounted if needed. I would recommend to others.