NOCO GENIUS1: 1A 6V/12V Smart Battery Charger – Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – For Lead-Acid & Lithium Batteries

Bought this item due to its popularity, good reviews, and its cost. Was a bit of a stab in the dark. But, I really am impressed with its ease of use and performance. With regards to the charging lights, there's only 4 different light sequences which keep it nice and easy to understand. Keeps my battery charged full throughout the winter evenings. Plus, you can keep it connected the whole time and just leave it, as it keeps the battery at 100% without overcharging it. A nice, compact bit of kit. Was quite surprised with how small it is, but it packs quite a good punch. Another cool thing I like, is that you can remove the clamps from the wires, and then just directly screw the metal rings onto the battery and leave it on. So when you want to charge, just plug it into the plastic socket at the other end of the wire. Makes it so much simpler to use. Overall, really happy. Been recommending to all my biker friends.

This arrived in 24hrs - seller is to notch 5 star business. This is my 4th Genius - they are superb. Cannot fault quality and ease of use. 10/10

Had to send the first charger back as it was defective, displaying red and green flashing LEDs alternately, before shutting down after a few minutes. The item had arrived unsealed and with tears to the packaging so it seems as it had been returned as defective before being sent out to me. The replacement arrived the next day, properly sealed, and I set it up in my camper. It worked exactly as it should and is now keeping the starting battery topped up.

Works perfect for charging my motorbike and keeping the battery healthy when not in use. Compact size for wall mounting too.

Bike battery went and this was a life saver!

Not as big as I thought its a large plug. Easy to put together and use make sure u pick right setting for the battery u have. No instructions of how to connect it together or what light means. But very easy to connect it and questions get answered on site questions area

I have had 3 of these now (2 replacements for faulty ones). Maybe I'm unlucky, but I've had 3 these that start off OK, but after a short while (a couple of weeks) fail to charge. The red LED pulses, but never goes green. I tried on 4 different batteries, all of which show as fully charged and good on other chargers, and have been tested and proven good batteries (1 was brand new!). The charger doesn't even seem to be trickle charging. This charger was used on my motorbike over winter, so keeping the battery topped-up is important, but they seem to fail after a short while. I have gone back to my old Motopower charger, which seems to have no problems.

Really good and easy to use