BWKUNOLF 2-Pack 12V 1A Smart Battery Maintainer - Trickle Charger for Car/Truck/Motorcycle/ATV/RV

Shipped in plastic bags thinner than grocery storm meat wrap and absolutely zero documentation with them, had to search the web which said the only indicator on the device would be red or green but these light up yellow, my voltage tester indicates they are working but they company clearly doesn't care about their product. They didn't even put their name on it and the power leads are the thinnest gauge wire possible, probably 26-29 gauge.

Never received my package

Gave a 5, although they've only been hooked up a couple days. The warnings were about the short cords coming out of it, and they were correct. that will be easy to overlook if they work well.

The quality is good and they arrived a day earlier than expected. Good value for the money.

For the money, they do a great job work great on the lawnmower battery. It wasn't keeping charge every couple times you used it. You had to charge it so I just put that on there and it works great. Recommend it highly.

obviously getting two products for this price is pretty good. however, while I can confirm that there is at least 13.8 volts going to a 12-volt battery, I do have concerns. like everybody else says, the AC plug part of the cord is definitely too short. The main problem is with the clamps and the wires. The gauge of these wires is smaller than that, which you would use with a set of aftermarket speakers. they're pretty much just red and black bread ties okay. maybe three times the thickness of a length of floss. The clamps are very cheap. while they will hold on to a terminal post, they don't hold very well to a side mount bolt. they also wobbled as if the teeth or each side of the clamp doesn't clasp evenly. The indicator light is another issue. because there are no instructions and even artificial intelligence lumps all of these chargers into the same result because they are all the same, just with a different manufacturer's name or fake brand name and put on them, I'll try to explain my experience with the LED. Red means charging. Red means error. Green should mean fully charged. or blink green until it's charged. however, once you hit the 13.8 volt wall, it will rapidly alternate and flash between red and green. I tested this theory with the second unit that came in this twin pack on a separate 12 volt battery. And while it does seem to work, the reduction in stars is because it's just really super vague. The quality of the wiring is subpar. having said all of this, I believe the product works but the longevity of it, that's really up for debate. If you've got a vehicle, you drive every once in awhile and it's going through extreme hot or cold while sitting, this isn't a bad idea to keep just taped near your battery. That's one convenient thing about it. And of course if it breaks, it's not expensive. And it's a lot easier than putting a full size battery tender under your hood. So if you get this, it works, and just keep in mind that while charging, red means charging and alternating green and red light flashes means it's constantly charging and not charging in an effort to go into maintenance or float mode.

works and looks as described good value for the money

great product %26 great value

I ordered two of these items and.one did not work.

very small thin wiring... Doesn't look ok for outside use...