SOLPERK 30W Solar Panel Charger, Solar Panel Kit Monocrystalline 12V Solar Panel + Upgrade 8A Charge Controller + Adjustable Bracket for RV, Camper, Vehicle, Caravan, Boat, Motorcycle (30W Kit)

For a 50w panel, this works well as a trickle charger for a 12v battery. I have a deep cycle marine battery that I use to power, along with propane, the needs of my 18' camper trailer. The solar panel is light & small enough to be mounted pretty much anywhere and connection to the battery is simple. I had an issue with the controller charge light erratically going off and their customer service promptly sent me a new one.

I bought this 30W solar panel and charger to use on a car that sit on the driveway and isn’t often used. I'm happy with it so far. It's a good option for keeping my car 12V battery charged, and if I need, it could also be used on RV or motorcycle…etcHere are some things to consider:Easy to set up: The solar panel system comes with all the components you need to get started, and it was easy to figure out how to hook everything up.Durability: The frame is made of aluminum and the solar panel looks and feels well made, and is also covered in tempered glass, so it should hold up in bad weather.Trickle charger: It will keep your battery topped off but it won’t recharge a completely dead battery quickly though.Overall, I think this is a good solar panel charger for the price. It’s easy to use, seems durable, and it’s a great way to keep any 12v battery topped off with free renewable energy.

This arrived a day early and has very clear instructions. Everything you need to set up a solar RV battery trickle charger is in the box, except the sun, and if you’re lucky there will be plenty of that in the sky. This is plug and play and seems to be working great right out of the box. Hoping it holds up for the whole season, and into the next!

I have an off-grid property that I can only get to every couple of months. I use this to keep a trickle charge on my batteries that I use for my solar system. I have tested it twice now and it did its job.

We are using this panel for our 5th wheel storage. It’s a really good size. Works well.

Keeps my battery charged

Output is about right for specs and solar conditions (37 watts, later in the afternoon, good sun, no clouds). The controller was a total no-go, however. It lit up, but didn't pass any current AT ALL. Uses SAE connectors which aren't my first choice, but I have adapters. For the price, it's a non-starter. With the current 50% off coupon, it's a borderline okay deal for just the panel. Would not recommend. Would not get again.

This panel and charge controller was $124.99 at time of order. For 50W, that's very high. I tested it and it performs well, so at that power, it'll certainly keep a battery topped off and it'll even keep you in full charge for the day, if you're running something like a 40W portable fridge/cooler. It's not what I'd really consider to be portable, as there are so many lighter and flexible options out there. When you get over a hundered bucks, a lot of options open up, including pairing a nice flexible panel and PWM or MPPT charge controller together. The output from the charge controller was high, at 16.3V. It was a bit overcast today, so hitting the higher voltage mentioned in the manual seems reasonable.I do see the price has been dropped by 40%, which makes it much more reasonable, but I'm rating it at the value it was at the time I ordered it. Even at $77.99, it's just an okay deal and I'd advise spending a hair more and getting something nicer.