NOCO GENIUSPRO25: 25A 6V/12V/24V Professional Smart Battery Charger – Maintainer, Desulfator & Power Supply with Overcharge Protection & Thermal Compensation – for Lead-Acid & Lithium Batteries

The NOCO Genius PRO 25 is an impressive all-in-one battery charger, maintainer, and desulfator. It hits a sweet spot for the at-home mechanic or anyone who works on vehicles regularly. It offers 25 amps of charging power, which is more than enough to recharge or maintain standard 12V batteries quickly and safely. While still compact, it’s built with professional-level durability and performance in mind. I’ve used it to bring deeply discharged batteries back to life, and the repair mode worked well on a few that wouldn’t take a charge from cheaper units. It also functions as a smart battery maintainer, so you can leave it connected without worrying about overcharging. Yes, it’s a bit pricey, but that’s expected for a unit with this level of control, precision, and build quality. It may be overkill for someone just looking to boost their battery once in a while, but if you’re serious about taking care of your vehicle’s electrical system, this is a tool you’ll keep for years. Q&A: Q: Is the Genius PRO 25 suitable for everyday car owners or just pros? A: It’s great for serious DIYers and pros. Casual users may find it more than they need, but it’s easy to use and very effective. Q: Can this charger bring a dead battery back to life? A: Yes, it includes battery repair/desulfation modes and can restore deeply discharged or sulfated batteries that cheaper chargers can’t handle. Q: Does it work for AGM, lithium, and deep-cycle batteries? A: Absolutely. It supports AGM, flooded, gel, and lithium (LiFePO4) batteries, making it extremely versatile

This is a beast of a charger, and definitely deserves the “Pro” in its name. All Noco chargers are of high-quality. However, this unit has extremely nice armored cables and even comes with a 10 foot eight gauge R word extension. I used a Victron Smart Subt tj pull 95 amp hours out of my 100 amp hour battery and it never fell below 12.1b. No mone then meticulously tracked this charger’s logic. I was very impressed with the findings. This is a little on the expensive side if you do not get even at full price when you receive it. You will understand what you spend your money on because it is so robust. but when you do receive it, it will be apparent what you spend your money on due to the quality professional grade hardware’s lastly, with a 5 amp mode and the included 10 foot extension cord for the clamps you can melt us on your wall and charge anything in your house with it. Well worth the money.

The Perfect Charger. This charger will supply a continuous 25a if your battery can take it, unlike the others that say 40 amp boost but then charge at a max of 6 amps. The Genius Pro will charge about whatever you put it on and probably the safest charger out there as well. Those who give negative reviews saying short battery life has no idea what their buying, it has no battery… it’s a charger not a car jumper

Quit charging after 1 year I replaced several good batteries thinking it was functional

Rather expensive, but very functional and easy to use. I got it as a battery tender for my Jeep Wrangler Rubicon and its stupid little auxiliary battery that causes problems.

The container comes with an assortment of European power cords. What a waste! This is not a travel kit, it goes into a shop or garage and stays there, in one country. The power cord could be a couple feet longer. The extension cord on the low power side is well made. However, it should have a lock function or be more difficult to disconnect / pull out. The rather fancy soft transport case should have been made to be able to leave the power cords attached! I am very disappointed that an internal fan was required too cool the unit. This is a point of failure, especially when the unit is used on the go, occasionally dropped or handled somewhat rough like normal in a shop. It should be ok if mounted to a wall or kart, but oily dust will eventually clog the darn fan, requiring cleaning. The fan is noisy, but that should not present an issue in a garage or shop. I do like the post clamps. They grip and stay.

Works exactly as I needed it to. I use it for long term storage for a Peterbilt with 4 semi batteries and it keeps them all charged and ready to turn on after a long time sitting.

I bought this to have a bigger version of the NOCO genius 5 that I already had. I use these to repair batteries. I was extremely skeptical about "repairing" batteries but it does work. I had a powersports battery that would only hold 3v. So you could charge it and it would be 12v but overnight it would drop to 3v. It took about 7 repair cycles, but that battery now holds 12.7v overnight. Not all batteries can be repaired. Also, this is good for maintenance. If you have batteries that sit for extended amounts of time, running the repair on them helps keep them in top shape.

Very powerful car battery charger. Robust manufacturing.

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Wow battery nearly dead and thinking about buying a new one but attached this bit of kit and it does it all for you, attach battery turn it on and that's it just wait for the green light, finished. Really robust and so easy to use.

I like the charger. It’s fast and optimizes my 24 volt lithium battery. The only thing I would like to have on it is another cord connection to charge my 12 volt lithium battery, so it charges both batteries at the same time

The NOCO GeniusPro25 is a powerful, versatile, professional-grade smart charger for 6V, 12V, and 24V batteries, it has multi-stage charging, built-in desulfator for battery restoration, and durable, water-resistant design (IP44). its advanced diagnostics, thermal compensation, and modes like power supply and force mode for dead batteries, making it ideal for cars, boats, campers and power sports, though it's a premium tool for serious users needing more than basic maintenance it does demand a high price like most noco products but the features it offers I'm willing to spend the extra for one charger that can do everything over having a few cheaper charges that can only do a few things, I highly recommend the Noco genius pro 25 for any professional or serious diy