NOCOGENIUS2X4: 8A 4-Bank Smart Battery Charger (2A/Bank) - 6V/12V Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – For Lead-Acid & Lithium

What a great product. We use this for our "not so often used vehicles" in our garage. We had the issue of our vehicles not being ready to drive when we wanted to take them out for a weekend spin or up to a local car show due to drained batteries. This eliminates the issue by maintaining a full charge. The multiple ports are awesome and the extension cables make routing a breeze. The size and compact design make it look great and a nice addition to our garage. I also use it for our other lawn, atv and other batteries. Simply connect and it's intelligent system detects the battery type, size and charging needs. Shuts off automatically and will turn back on if it detects a voltage drop. Love this thing!

I recently started using the NOCO GENIUS2X4 for charging and maintaining multiple batteries, and it’s been a reliable addition to my workshop. With four separate banks delivering 2A each (for a total of 8A), I can work on several batteries at the same time without worrying about overloading any single unit. The smart charging feature adjusts the current to suit different battery types, making it both efficient and safe. The build quality is solid, and the compact design makes it easy to store or transport. Overall, it's a dependable charger that has streamlined my battery maintenance routine, whether I'm dealing with car batteries, power tools, or other rechargeable equipment.

The media could not be loaded. Works great. I'm super satisfied with it. I was gonna get the 3 bank one because it would charge faster supposedly at 5amp each bank but I'm in no hurry.

Full disclosure, we use other Noco chargers onboard our school buses at our kid's school. They are very robust and keep the dual 12V commercial batteries fresh when the buses are not in use. I got this one for my motorcycle fleet(?) at home. Yes, the charger is more expensive than several similar. It's worth it. I've used Battery Tenders, and many others over the years. The Noco is best.The leads for the battery are not the standard SAE version. Noco uses a heavier duty connection that clicks into place. The alligator clips are designed to be removed if you need to permanently install a lead on your vehicle's battery inside your car. The unit comes with clear instructions. If you are upgrading for an existing SAE configuration, get the Noco-SAE adapter ($16 at this time). Just search in Amazon "NOCO GC009 X-Connect SAE Adapter Accessory Genius Smart Battery Chargers" .

I have 4 motorcycles that I use this tender to keep charged over winters.I also use this tender over the summer to revive and desulfate lots of batteries throughout the year. This charger has saved me hundreds.

This is a great product and keeps my equipment batteries ready to go.

I was saving to use when I install my solar system in my rv, couldn't because of hurricane Milton, but after the hurrican, my rv engine battery was dead, I open the box with this charger and plugged in and found 1 out of 4 charging positions not working, have to send back glad they have a 3 year warranty

Got tired of lead acid batteries in my Ryobi riding mower. Swapped them out with some LiPo batteries and used the disconnecting leads here to keep the batteries easily ready to charge after mowing. I just connect the leads back together to charge, disconnect and store under the seat when in use. Zero issues, and it's nice not only to see battery level and status, but also to be sure they're being kept in the best possible health when charging.