XINPUGUANG 50W 12V Solar Panel Flexible Battery Charger Monocrystalline with PV Connector for RV Boat Cabin Tent Car (50w)

I bought these to charge the batteries for an electric outboard motor on my sailboat. It's not a trolling motor, it's a 2kw (about 4hp) 24 volt outboard so it takes a fair amount of juice. I have 2 of these panels connected in series and I'm using a PWM charge controller (didn't know about MPPT chargers at the time). These panels have consistently produced about 4-5 charging amps at 24 volts and I've never had to use an external battery charger. The batteries are 12 volt deep cycle marine batteries from auto zone (group 31) connected in series. The panels are lightweight but seem durable. I do not walk on them or move them around a lot.

I purchased this panel because it was the right size to fit into the space I had. I wasn't expecting a full 50W because I know from experience with other panels, you never really get the rated capacity. That being said, according to my charge controller, this panel never outputs more than 3 - 8watts on a regular day. On a perfectly clear day with sun directly overhead, no clouds, and angled directly towards the sun... I briefly got 10 watts. This panel is not worth the money.

Just received the panel, all looks good. No experience with it yet, since I will not put it into service until May. So far, I have only checked that it can produce voltage/current with a multimeter.

2nd Flex panel, they are not very robust,But I knew that going in.I would not buy this product again though as what I understand: Bouge recently is producing solar panels that are very reliable, dependableYou Tuber Hobotech did a thorough review on it, saying: " Bouge Flex solar panels are not like solar panels of before

Solar panel is as pictured and described. It works. I haven’t tested it in perfect full sun yet, and I probably never will.I have it on my minivans dashboard, connected to a charge controller and topping up my battery. The previous 10w panel I was using wasn’t cutting it. This panel tops up the battery even on cloudy days. I’ve been using it for about a month.

Bought this panel for my boat. Was disappointed in my solar suite performance so bought a dedicated solar panel tester. In broad sunlight, with no shading, this panel only was putting out 7 watts. Out of a theoretical maximum of 50. Going to replace with basically any other panel. Stay away.

Roof mounted with eternabond tape. Works great.

I have seven of these on my van RV. I used super strong round magnets with wing but posts that go through the solar panels to hold them on my van’s metal roof so I don’t have to drill holes or glue. Make sure to use good quality solar wiring. I have had them hooked up in parallel, but have not been able to get them to work with a new solar generator wired in series. It’s either my error or one or more panels is having an issue.