NOCO GENIUS5, 5A 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

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.

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.

This little charger is a good bang for your buck. I'm using it on my 2025 Chevy Traverse with an AGM battery to keep the battery charge topped off while in the garage. The unit does get hot to the touch which was concerning to me but once it charges the battery it floats a 13.25-volt charge to maintain the battery. I've had the unit for about a week with no problems it had my battery up and charged in about 6 hours.Note: I contacted the company via email about my heat concern, and they said it was normal to just keep it of carpet or anything that may impede air flow for cooling. Customer Service was excellent I had an email reply in a few hours, and it was on a Saturday afternoon.

Excellent charger maintainerI had the old version and it was very good - this new version is even better.I have a 3 year old AGM Group 78 vehicle battery that was unintentionally drained down to zero volts.My old 4amp Battery Tender would not recognize the battery.This new NOCO Genius 5 did recognize the battery and was able to start charging the AGM battery (even though it showed 0 bolts on a voltmeter).It took about 4 days of charging and disconnecting the NOCO from the battery before it got up to 12.2 volts.I have not load tested the AGM battery yet, however the fact that the NOCO Genius 5 was able to charge the battery is amazing.I have used theses NOCO to charge other healthy batteries up to full charge.I am very pleased with this NOCO charger and have bought a second one in case I let a friend borrow it (and it never comes back to me).

I was delighted when I realized the product weight indicated a real transformer and not a switch mode power supply. The wiring feels robust. The battery clams have a wide bite, wonderful for those large battery posts on the auto restart cars.One of the pictures shows what all came in the box. I was interested in the wall mount and no seller offered a photograph. The unit snaps into the mount and is held in place by Velcro.The biggest negative is the waterproof proprietary two prong connector. This is a locking waterproof connector. The last thing I want on a float charge is a locking connector to rip the wires out and the device off the wall if I forget (and I have) to unplug before leaving the garage. In addition this connector is not compatible with any other SAE 2-prong connectors you may have in house. I will be cutting off the stock connectors and replacing with standard SAE for safety reasons. I will report back when I measure the wire gauge.Lastly, when I plug the charger into the car only one indicator light on the charger comes on telling me the battery is ¼ charged. I measured battery voltage at 12.55 volts which is actually about 80-90%. The instruction manual only offers basic instructions.Packaging, it is well packaged make room in the recycling can.Update: 4APR25, wire conductor appear to be aluminum wire, appears close to 16 gauge, the battery clamps are wonderful, wide bite. Notice when returning a AGM automobile battery back to charge, the charger initially indicates battery level at 1/4 charge. Actually batter measured 12.6v closer to 90%. In about 15 minutes the charger catches up.

Best battery charger/maintainer I've ever owned!!!!! My motorcycle lithium smart battery had drained down to 1.18 volts. My original charger would now detect the battery because of such low voltage. I was told to purchase the noco genius 5 and it will bring it back to life just like new. I placed my order on Amazon around 4pm and it showed up on my porch before 9pm the same day!!!!!! Wow... I connect it to my motorcycle and it woke up the battery and full charged by 9am the next morning!!!! I will most definitely recommend this charger to everyone.