NOCO GENIUS2D: 2A 12V Onboard Battery Charger, Maintainer and Desulfator

Easy Install. Delivery was on time. Noco Genius 2D works flawlessly. Highly recommended for Battery Maintenance.

Works as intended. Good quality for price. Would have liked the cord to be a little longer.

very low cost for a very high-tech item

Charges batteries overnight just fine. Like the small size.

Easy setup. Keeps the battery charged in cold weather here in Maine. My vehicle stays outdoors in the cold overnight weather and this unit has done well.

This charger fit the bill in that you plug it in and in and walk away, charges and maintains a battery (lawn tractor in this case) temperature compensated, IP65 rated. 3year warranty. LED displays what the charger is doing and when it's done. Apparently there have been some water ingress problems with these units (make sure the front display sticker is well burnished in, that's where water can sneak around). Time will tell.

I don't drive a lot and my battery would go dead. It's a fairly newer car, 2019 RAV4. The battery was checked and it was good so the service guy at Toyota suggested this battery tender. He even installed it for me. So far so good, I just plug it in when I don't plan to drive for while. You can keep it plugged in 24/7 and it won't overcharge too. This has been great. No more waiting for AAA to come out and being told I must have left something on. This is a wonderful product for anyone who hate getting ready to go and then your battery is dead. The only minor thing that I personally dislike is you can see the plug sticking out of the grille. But that's just me. I sure no one else notices it and my battery is always fully charged and ready to go. I keep it in the garage so it's really easy to keep plugged in. I definitely would recommend this product.

I'm using this smart battery tender on a tractor. I don't want hard starting in the cold from the battery. So far after installing it directly to the battery terminals and plugging it in with an extension cord. No mart hard cold starts.

Came with a mounting clip, strap, and self-tapping screws. Easy to install.

This does NOT work for automotive batteries. Once you open the box, it states that it's only meant for 40 amp hour batteries or less. Automotive batteries have at least 80 amp hours. It will overcharge your battery because it never sees when it's fully charged, and will never maintain, but only overcharge.