Customer Reviews for VEVOR 25W 12V Solar Panel Battery Charger, Solar Battery Trickle Charger Maintainer with Intelligent MPPT Controller & Adjustable Mount Bracket, IP67 Waterproof for Car Boat RV Motorcycle Trailer

Using as a trickle charger on my rv battery while in winter storage. Seems to be working as described. UPDATE; Checked rv in storage after 40 days....battery was dead due to charger not working. Wasted my money.

I was worried about this because the initial voltage, or pressure is very high. Like I don't know 30 volts or more? But the bottom line is it doesn't actually push that many volts in when connected. Apparently it's smart and knows what to do. I hooked it up and left it in the sun while on a business trip for like 9 days. I was mortified that this was going to fry my battery. When I got home everything was fine. Turn the key and the engine spun like a blender. I would recommend these for vehicles that you are going to leave outside for periods of time that made drain by themselves. Business travelers, campers, things like that. I will probably buy one or two more

I bought two, put them both out in the sun for a couple of days for a trial run. Both put out 20+ VDC, both controllers cut off at approx. 13.6 VDC. Have one panel and controller in service for a couple of months now on a gate operator, good so far.

I have been using two of these for about a month now, and they seem to be working excellent. I had to charge a 12v mower battery (it was just low on 230 cranking amps) and it was back to full power in a day. And, yes, I have used the batteries after charging and they are working fine. I just use these to keep a couple of batteries ready for emergencies, and to run a 12v water pump on occasion. So far, it has worked perfectly for me, but it may not be the best option if you need a battery charged quickly. For just keeping a battery charged and maintained, which is all i am doing, it is working great.

Hooked it right up to a car battery and set it outside at noon on a sunny day, was charged in a couple hours. Stored in the shed, this still lights up as "in sunlight" just from the ambient light coming in through the windows. Quite a good solar panel.

all good, except manual has very little detail

I was plkeased with the size oif the solar panel, However, the instructions are very vague. It does not show you what wires or cables are to be connected to what item.

OnlyDo not buy any of these solar panel kits that comes with a MPPT Controller if you are needing to mount it on a trailer that has no dry storage. The MPPT Controller is NOT IP67 RATED. It has to be mounted in a dry place that can vent. I purchased this unit for a gooseneck dump trailer that does not have any dry storage compartments because the item description said IP67 rated. The only thing that is IP67 rated is the solar panel. I would think that all solar panels would be IP67 rated because they have to be outside and are designed for the weather, so I thought the IP67 rating was for the MPPT Controller. But buyer beware, IT IS NOT!!!!!!! Now, I have to return it and look somewhere else for a unit that is completely weather proof.

Panel and Maintainer works good. The wiring gauge is very minimal and the provided clips broke the first time install. A heavier gauge wire and better alligator clips, would get a 5 rating.

I can’t seem to get the controller to charge my lithium battery. And I can’t locate a manual for the charge controller.