Orion Motor Tech 1PC 12V Battery Charger and Maintainer, Trickle Charger for Charging Boats Motorcycles ATVs Riding Mowers & Car Truck SUV RV Maintenance with Smart 3 Stage Charging & Power Indicator

Seems to be working so far in keeping the battery charged. Turns green when its maintaining. So far so good, will update if any issues.

The green/red light only ever shows green. You must have to have REALLY low volts to get it red. I didn't think it was working, but I put it on a 12V battery that started out at 8.94V per my multimeter. Let it charge overnight and checked again with my multimeter in the morning and it's fully topped up.

Upon receiving the charger, I opened the packaging to find the cheapest peice of plastic with short power and clamp wires (that are like 18 gauge) and thought to myself well, this thing is a waste especially after reading the most nonchalant instructions I've ever seen for a device one of which reads, "Green light - Charged enough", but I went ahead and plugged it in and started the charge of my ATV battery. A couple hours went by and I went to check on it and it was green (full). I thought to myself, theres no way that its already full so I unplugged it and plugged it back in and went directly to green. Irritated I grabbed my battery and took it to place on my big charger and to my amazement it went immediately green, fully charged. They say never judge a book by its cover. This little cheap charger/maintainer is beyond a great buy. Only reason for the 4 stars is the build quality and length of wires but if you want something that will charge a battery quickly and is cheap, look no further! Easy to use just clip to the battey and then the wall. Very portable and even has a little bag to store it. Looks to impress with a nice smiley face to help remind you it may look and feel cheap but it does the job!

Keeps battery charged during the freezing winter. My snow plow charges up right away in below freezing temps.

Worked great keeping my jet ski and boat batteries charged over winter.

Excellent product little and compact.

My initial impression of these chargers is that they seem to work OK, but the cords and connectors are below average. The cords are very short, and the plug and clips are rather flimsy. However, the voltage regulation is good out of the box. They charge a battery up to about 14.4 volts, then taper off to 13.6 volts, which is a good charge profile for lead acid batteries. If they last, I'll be happy with them. I'll update my review if they pass the test of time.

I leave this on my lawn tractor and it’s kept it in running condition all the time. Easy to use.