• The most versatile all-in-one battery charger any vehicle owner would need to quickly recharge its battery in hours, including cars, boats, trucks, RVs, tractors and much more up to 120 amp-hours.
  • Perfect for keeping your vehicles fully-charged and maintained during year-round battery maintenance or long-term storage for improved performance and longevity.
  • Works with all types of 6-volt and 12-volt lead-acid batteries, including Wet, Gel, and AGM, or any common automotive, deep-cycle, marine, or maintenance-free battery.
  • Keep your battery fully charged without worry or overcharge. Simply plug-in and let our advanced charging technology automatically monitor and maintain your battery.
  • Use our advanced Repair Mode to reverse the damaging effects when batteries are left uncharged for extended periods to improve battery performance and longevity.
  • An optimized charge mode for safely charging and maintaining 12-volt lithium-ion batteries, and recommended with use on lithium batteries with an internal BMS.
  • One of the most advanced and safest battery chargers, including spark-proof technology, and reverse polarity protection, plus backed by our 5-year warranty and endless accessories.

Perfect charger/tender for someone with too many batteries! Very versatile, will charge any battery you have that powers your many 'toys'. I like this option for setting up a 'battery charging station' this uses one electrical outlet vs 4 needed in my case. This will cost more than 4 individual chargers but I find this to be a much better option and more versatile vs most single chargers. Something I didn't realize and/or didn't think about but really like... this unit has a 'memory' and remembers the last setting on each charging position. Once set you can unplug you batteries and plug them back in the the same position and the charger will continue charging at the last setting you set, it remembers all 4 positions independently. Easy 5 star review for me!

I purchased the .75 Amp version ("NOCO Genius G750 6V/12V .75A UltraSafe Smart Battery Charger") almost 3 years ago (May 2014), and have had no problems with it, since. I've used it to maintain or charge 3 motorcycle batteries using these leads: (NOCO Genius GC002 Eyelet Terminal Connector. By purchasing 2 extra terminal connectors for my other bikes (FYI, the .75 amp kit does come with ONE terminal connector, which is all you need if all you have is one motorcycle), I don't have to "access" the often hard-to-get-to battery and use the clamp type connector. You can then just tuck the female terminal connector end out of the way (under your seat, under the cowling, etc) until you put your bike away for more than a few days, then plug it in to your G750 charger. Nice! I highly recommend this G750 if you have a motorcycle. If you have cars that you don't drive very often (larger batteries...), buy a bigger/more expensive NOCO model charger that can be used on motorcycle AND cars/trucks. I don't have that need (I only have one 4-wheeled vehicle - a Range Rover, and it's driven almost daily by either me or my wife), so the $30 G750 fit the bill for my needs (this also works for lawn-mower batteries and other smaller batteries). If my review helped you, please click the button below so others can see my review at a glance. Thanks!

I have been using the G26000 for a month now. WELL WORTH THE MONEY! As you can see I am using this to supplement my charging of my solar battery bank (8 - 6vlt/230amh deep cycle, wired in series/parallel). I have cut off switches to isolate the 2 sets of batteries, so I'm only charging 4 at a time. I bought this after the schumacher charger I bought crap out on me. Guess you get what you pay for. I called the company and talk with tech service about what I wanted to do and was told no problem. The unit is bigger then the picture shown, it's roughly 14" long, 6" wide, 3" thick. Cables are about 10awg compared to schumacher's 14awg, and the clamps are heavy duty. This in my honest option is a well made unit and will last me a life time.

How many battery maintainers can you mount outside in the snow and have them snow covered in the Wyoming cold and still have 100% battery. Just had to run outside to check tire size for someone asking for it and figured I would take these pictures. This battery maintainer never leaves my atv even when I'm doing my snow removal I trust this to never take it off. It's such a wonderful battery maintainer

Nice charger! At 3.5 amps, it charges FAST ENOUGH without stepping up to a bulky model with more amps for us. I'd like to know if this thing can charge our "little" 6 volt 4.5Ah batteries too? Received on time, packaged very well and I might add the packaging shows pride and thought, and I LIKE that! Nice package and product, charged our 120Ah battery in a few ours at 14 volts then when full, dropped it down to trickle at 13.2 volts, excellent NOCO, keep up the good work, hard to find a product with pride these days.. Update 12/1/17 This charger is AMAZING! It is really a genius, we wanted to know if it would charge our little 6 volt 4.5Ah dead batteries and it did! It first went into diagnostics, then the 6v white light and standby light started flashing, we thought it was an error, turns out the charger was "pulsing" the battery off and on to bring back from the dead enough for the charging to begin, awesome tech that has saved us from buying more batteries. Charged our 120Ah and our 2 6v 4.5Ah batteries that were dead, there you have it folks. Highly recommended...

I had been neglectful in cranking my secondary vehicle and as a result, the battery, which was less than a year old, ran down. I have an old DieHard battery charger that only has three settings... 2 amp, 15 amp and 100 amp quick start. I put it on the 15 amp setting and connected it to the car battery and let it run all day and it didn't even budge the status indicator one bar on the charger. Did some reading up and research on some of the newer chargers and decided to give this NOCO Genius G15000 a shot. My first attempt was to try the 12V repair mode, but the indicator lights on the NOCO indicated that the charge on the battery was too low even for that (according to the owner's manual, the sequence of lights indicated that my battery was at less than 2 volts). I then went with the 20A Jump Charge mode. When it finished after 5 minutes, I noticed that the trunk dome light was on in the car (the battery is in the trunk). I then tried the 12V repair mode again and this time, it worked. After letting it run for several hours, the battery was fully charged and the car cranked right up. Money well spent!!!

This charger is awesome and I can't say enough about how much I love it. Charge your lead acid battery with it, either 6 or 12 volts and your engine will crank like crazy. It's a good battery maintainer too and keeps the voltage up there around 13.5 volts. (Correction: I've found that it enters a floating charge mode after it finishes charging; The battery will slowly lose charge from the 13.5 volts down to 12.78 volts and then the charger will bring it up to 12.79 volts. Then it will drift down to 12.78 and charge back up to 12.79 and do this continually. This is great because you can leave your car in storage indefinitely and it will keep the charge up. If there's a power outage, when the power comes back on the charger starts in the same mode it was on and brings the voltage up to that 13.5 volts.) I have an old 12v lawnmower battery that wouldn't crank the mower at all. With a 10 amp charger hooked up it would just barely start the mower. It was that way for about a year. Then it wouldn't crank the mower enough to start even with the charger hooked up. I hooked this battery up to the NOCO Genius and didn't even use the repair setting. Just gave it a regular charge overnight (doing all it's fancy 8 steps and everything). Next day unhooked the Genius and the mower cranked like crazy. I cranked up the mower three times within about a minute to test the battery. Then I let the mower sit for two weeks to see if the battery would lose it's power. Went out in 30 degree weather and it cranked right up. Stepdaughter had to get a new battery for her car. Wouldn't crank. I asked her to let me have the bad one because my NOCO Genius was coming in the mail. Took her old battery and put one regular charge on it. Stuck it in my car and it cranked right up. I'm just really amazed. I hope you find this review helpful. I think this was one of the best purchases I've ever made and I have no doubt it will save me many hundreds of dollars in the years to come. Edit to add: After about 6 months the mower battery finally bit the dust. But that was 6 months I was able to postpone buying a new one.

I attached my cheepo float charger to maintain my 74 Honda CB360 battery. OOPS, dummy me forgot to plug in the charger! Three months later not only is the battery dead, also 2 of the cells are BONE dry. I put in distilled water to raise the 12Amp "flooded wet cell" liquid level to midpoint between the lines at the top. I attached a Fluke voltmeter and saw 3 volts, ouch - 50 or so for a new battery. I thought of my G3500 V2 (with "repair") and thought "why not". To my surprise it started to charge - took a mighty long time - about 14 hours on low setting. Next I ran "repair" till a green light (about 4 hours). As there was some "condensed solids" at the bottom of some cells, I made a marathon effort. I alternated between repair and low charge for three days, slowly as the bubbles rose; the solids dissolved and the bottom cleared. I was stunned. Would it start the long sitting cycle, and if so would the charge last at least a week? YES to both!! Frankly, I was 99% on the way to just ordering a new battery. I probably would but for the fact that my ancient 74 bike has a "kick starter". I am delighted with what the G3500 V2 did. A click on "this was helpful" would be appreciated.

This charger / battery tender is fantastic. It is easy to use and has a safety built in to avoid overcharging and damaging your battery. Light indicator tells you the battery level ... blinks red Below 70% , blinks green when below 90%, solid green when above 90%. I use this on my Porsche 911 which will slowly drain the battery as it sits.

Bought this 2 months ago for my son to use on his car. Then yesterday when I went to start my cadillac, it seemed sluggish but did start. I told Husband about it and said I have a smart battery charger that can be used to test the car battery. Husband didn't want to get away from his lazyboy and TV, but I made him. Got the battery charger from son. He hasn't used it yet. I looked at the instructions briefly and picked the 12V mode for charging. I know zip about cars or batteries, but this was easy. After a few minutes diagnosing, it says my battery was at 25%. Overnight the battery made it to full charge. Claims that you can keep it on battery indefinitely. Husband is now very happy that I made him do this. Then I made son test his car's battery as well. His battery was tested at full charge. I'm very proud of my purchase!