NOCO GENIUS10, 10A Smart Car Battery Charger, 6V and 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV, Lithium and Deep Cycle Batteries

This is the best built and most versatile battery charger I have ever used. It’s so compact and easy to use. I got it for my LiFePo batteries in my camper but it works great on my AGM battery in my SUV too. I would definitely recommend this to anyone who needs a good battery maintainer.

EDIT 2/26/24: I am now the blocks "AAA". Been helping people start their cars when jump starts with cables have not worked. Definitely handy to get other people out of an otherwise expensive pinch.I have a car battery that I purchased around 2016 (date of review 1/3/24). The car itself does not get driven much, at most 2-3 times a week no longer than 15 minutes one way.Throughout the years I've drained it by leaving the car lights on. Its always required a jump start after that to get going again. Recently I've been an idiot and been leaving my lights on more frequently. Eventually it required me to jump start everytime I wanted to turn on the car. It was becoming a hassle and I was about to call it quits and purchase a new battery until I came across Project Farm's review on battery chargers. This was at the top of the list so I figured to give it a shot.I was not disappointed! I charged it for 4 days straight, put it in my car, and it started right up. Not surprised considering it was just charged but the real test laid ahead. I was going to be out of town for two weeks and leave the car sitting. I came back two weeks later and the car started up, no hesitation whatsoever, as if it was a different battery!The NOCO Genius 10 saved me about $150-200 at least in a brand new battery. On top of that, I can now use it for other batteries in the event of any similar issues. The instructions on the other hand are a bit confusing and had to rely on YouTube comments to piece it together.For those who are confused at what to do, I did not do a 12V repair (function which this unit has) as it requires the battery to be completely charged first. All I did was charge it straight for 4 days uninterrupted.When first put on battery to the charger it will be in standby mode. You push (or hold depending on what you need) the MODE button to select your desired option. I was charging a lead acid battery so I selected 12V. The meter at the top slowly advanceD from each of the four bars until the final bar was pulsing green which indicates its charging to full (over 80% I believe). The green charging light continued to slowly pulse even on the 4th day but I took a gamble and disconnected it from the battery. For the battery to be 100% charged, the green light should stay solid. That means my battery worked 2 weeks later after sitting and it wasn't even at 100%.The unit can also force a charge on batteries that are extremely under voltage. Thats a separate setting that I haven't had to use yet. It can also charge AGM and Lithium but I believe the 12V repair function is only for lead acid.Unfortunately I had to go through 3 separate orders because the first two were from Amazon Warehouse and I encountered issues with both, consecutively. I ended up getting frustrated and just purchased a brand new charger.Pros:Solid build qualityExcellent cable connections with weather coversCompatible with a wide variety of batteriesRepair and Force charge batteriesCons:Poor instructionsCharge is slow BUT I think thats how these chargers workTL;DRTry this first before rushing to get a new battery it is a good investment that can save you a lot of money

I purchased 3 different charger/ maintainers for a car that isn’t driven very often to keep the battery charged. None of the 3 would do that including a Ctek. All 3 claimed to repair battery. Have nothing good to say about Ctek product support as they never contacted me after I contacted them through their website so after 9 business days of waiting I bought this charger/maintainer and am really glad I did.I set it for repair mode and right at 4 hours later the battery was charged to 100% by the OBDII reading the SOC in the BMS where it never got above 72% before. Hopefully it extends the life of the battery as is claimed.Highly recommended even though it’s on the pricey side I think it’s well worth it. It saved me a $260.00 battery.

I have only had it a few days but used it several times while working on my truck (after draining the battery multiple times). It is a small size, solid construction, delivered a good charge, and seems to work intelligently.

I'm not a Boy Scout, but I do prepare for stuff. I bought this Blk Friday last year for emergency use. I carry it, rather than old school jumper cables, because today's people have no clue about cars, and trucks, and how to jump start them. This is fairly easy. 2 cables with color matching terminals, and a few buttons, and a LED Light. Black to black, red to red, press On. Press Jump. Done. Wait 2 mins, go start the dead vehicle. Easy to do, easy to store. I recommend their storage box, as it's custom molded to fit the jumper according to size.My only CON, is you Must keep track of charging it. This is a battery pack, so it needs attention about every 2 to 3 months. Just charge it up full, or "Top it off". I had one a few yrs back, and I killed it, by not charging it often. As with anything, a bit of maintenance will keep this going for yrs and yrs. My last bit of advice, get one big enough for your largest engine in which ever vehicle you have. Then it will work for every vehicle you own, truck or car.

This charger is a gem! I have 3 of them to maintain various vehicles at same time. Keeps batteries maintained while in storage. Great for boats, cars, side by sides, aircraft , rc ,lawnmower etc. they charge 6 volt 12 volt and arm batteries easily with a push of a button. The cord length is great on both sides the plug and the leads. I highly recommend getting the charge lead that plugs into the plug. They come with a good set of clamps but that plug is a real help in hard to reach areas. You can also mount the whole charger in the vehicle as well.these work very well and are definitely a great value for the money. I highly recommend them to anyone needing a quality messy to use charger

So this would be a year or so that I’ve had this already and I’d have used it several times if not more. I’ve used it on my Harley Davidson, cars, etc. Comes in a nice carrying kit, stores nicely and definitely throws a good battery charge when utilized ,very easy to use.. The indicator lights are clear, which shows how much charge is left, and has different functions for different applications when needed! A must have … especially when you have kids driving around .