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

I’ve been using the NOCO GENIUS5 for a few months now, and it has far exceeded my expectations. This charger is compact and lightweight, but don’t let the size fool you—it’s incredibly powerful and packed with smart features.What I love most is how effortless it is to use. It automatically detects the battery condition and applies the right charge—no guesswork involved. Whether I’m charging my car, motorcycle, or even maintaining a boat battery, it handles everything smoothly.The “Repair Mode” is a game-changer. I was able to revive an old battery I thought was dead! It also supports lithium and AGM batteries, making it versatile for any vehicle.If you need a reliable, smart, and safe battery charger that does more than just charge—this is it. Definitely worth every penny.

I had a prior trickle charger that just up and stopped working. By the time I realized it, the car battery was dead. Like totally dead. Well, I researched products to restore the battery and recharge it and decided to purchase this one. I followed the instructions on plugging it in, but with a dead battery, I kept my hopes in check. Well, the product lived up to its hype - in less than 1 day my battery was back to full charge and the car cracked over first try! I have it connected now since we don't drive that car very often and this is a smart trickle charger so I feel like it will maintain the battery better. Easy to use and definitely built in safety. The status lights are great too. Definitely worth the money. Would buy again.

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.

I purchased this NOCO battery charger to maintain the battery in my 2000 Ford Ranger, which isn't driven very often. I ran the battery fixer mode, and now it's automatically in maintenance mode, and it's working perfectly. My truck starts right up every time.The alligator clip clamps were easy to attach to my battery terminals, and the cord's locking mechanism ensures a secure connection. The unit operates silently, with no noticeable noise. The indicator lights are intuitive, going from red to green to clearly show the charging status. The instructions provide detailed information about the indicators and modes, though I primarily use the maintenance mode. The charger itself is compact and easy to store.This NOCO charger is packed with safety features. It tapers the charge to prevent overcharging, and the cord's design prevents reverse polarity issues. The instructions also mention that it protects against problems if you accidentally connect the clamps to the wrong terminals.While not the cheapest option, NOCO has a solid reputation, and in my experience, this charger performs exactly as intended. It's a reliable and effective way to maintain a vehicle that isn't driven regularly, providing peace of mind and ensuring my truck is always ready to go.

Why did you pick this product vs others?:Good basic charger but mine failed after 4 years. Cheap enough to buy another.

Picked this up specifically for my 100Ah LiFePO4 trolling motor battery and it worked flawlessly. After a full day on the water, this charger brought the battery back up quickly and efficiently. Simple to use, compact, and delivers exactly what you need for a LiFePO4 setup. A must-have if you're running lithium deep cycle batteries.