NOCO Genius G4 6V/12V 4.4 Amp 4-Bank Battery Charger and Maintainer

The media could not be loaded. I was hesitant to pay $175 to get this, but after reviewing other similar devices I kept landing on this one. I do already own their portable battery jumper, it is very nice quality, made to take a beating and its intelligent. I owned the jumper for about a month to make sure it was good quality. The packaging is very nice, well made and instructions are well made. I am able to charge 4 batteries at once without using up 4 sockets with other better known battery tenders. Note, battery tenders, don't always provide a full charge, they just keep enough current to the battery to keep the cells from dying. This provides a full charge. The case is very well made, water proof and self senses the battery type when you make contact with the battery. You get 2 battery screw connectors for more permanent or long term terminal connections and you get two spring loaded alligator terminals for larger auto/rv battery types. You also get 4 extension cables, so they don't hook you to buy all the accessories. If you didn't want to pull the batteries out like I did from my motors, you can buy additional extension cords for a very reasonable price, you can also daisy chain the extension cords to meet you distance requirement. Overall I am impressed with it, everything seems good quality. This isn't something you open and immediately know its a knock off version from China, its the real deal..

I guess you'd say I'm a fan of NOCO chargers. A few years ago I bought a G1100 to keep my '67 Fleetwood charged, then another to keep my '62 Falcon charged, then a G750 to keep my lawnmower charged. I had such great results with these chargers over the last couple years I invested in this gigantic beast, partly for the extra features and partly so I could move the G1100s and use them for other purposes. I've had the G4 for a little while now and it does everything expected. Knowing what I know now, I should have just bought the G4 years ago instead of starting with the G1100s, but you know, it's hard to stomach a $200 battery charger. I think Noco makes good stuff, and I've got a few years of positive results to back that up. If you've like me and have a lot of batteries to keep charged, I'd just bite the bullet and get the G4. It's solid.

We have a rustic escape place,, which we have to winterize every winter. I have 7 batteries for different equipment which are removed and brought home every year we close the place up. Over the last two years this charger has made the health and management of all our batteries MUCH better. Being able to charge 4 at once is a wonderful time saver and I've already noticed that how it charges seems to make all our batteries seem healthier, and last longer. Before we purchase this charger a couple of our older batteries needed a refresher charge before the end of the season, and now they work throughout the entire season.

with a number of bikes with different types of batteries, this has been a great unit allowing me to reduce the clutter and make battery maintenance a breeze. the unit easily mounts to the wall (if desired) and the connectors and cables are easily installed and used like typical battery maintainers. as far as the functionality goes it is 5 stars, but do wish the price was a little lower or the kit could be customized since i rarely need alligator clips and had to buy extra extensions which would have been preferred over those.Personal gripes aside, definitely happy with the product

I mounted this product on the post of a shelf that holds spare batteries. Over time our spares would discharge. Keeping them on a charger was a total mess with wires in a rat's nest. Now we can just walk by and see that the lights are all the way to green. Even new batteries take an initial charge, which is to be expected since there is no telling when they were actually filled with acid. Another incredible use is keeping 12 volt gel cells charged. The charger comes with two 10' extension cords. (All cords have polar connectors for the charger end so you can't plug them in wrong.) I took one of the extension cords and split the wires apart every foot for six inches. Then folded the wires back and put a nylon tie around the wires where the split ended at both points. This gave me nine loops of split wires. I could have split the entire 10' length but that would have made the end result messier and more likely to tangle. At the mid point of each loop I clipped a 3M T Tap connector over both the red and the black wires. T Tap connectors just snap over a wire, insulator and all, and then allow a blade connector to be plugged in. The exact same blade connectors that the T Tap connectors are designed to accept are on 12 volt gel cell batteries. So with our modified charger extension cord we can now maintain the charge on nine gel cell batteries at the same time. This is the link for the T Tap connectors : http://www.amazon.com/3M-Scotchlok-Self-Stripping-QuickSlide-Disconnect/dp/B003KOIBLI/ref=sr_1_1?ie=UTF8&qid=1351600013&sr=8-1&keywords=3m+952 The only complaint is that this charger is intended for four batteries at the same time. However there are only two charging cables with electrical clamps. The other two have holes at the end which I guess is for batteries with threaded connectors and wing nuts. If you have more than two batteries with plain posts then you are forced to find another way to keep them connected. If you want to have four clamp connectors instead of the two it comes with then you have to buy two of these: http://www.amazon.com/NOCO-GC001-Genius-Battery-Connector/dp/B004LWV0DY/ref=sr_1_21?s=automotive&ie=UTF8&qid=1351600268&sr=1-21&keywords=noco+genius