Review on 🔋 XINPUGUANG 200W Portable Solar Charger Foldable Solar Panel Generator with Charge Controller for Battery Camping Travel RV Van Outdoor - 12V by Raden Maldonado

Panel. I use them in series to charge a 24v battery in my RV via an MPPT charge controller. Cons: Nothing really, although I'm concerned about durability. The flexible panels are a bit fragile and you have to be careful not to break them or slip around corners. Several wires go through a hole in the back of the nylon case. Doesn't inspire confidence. It would be nice if they included some sort of stress reliever. I can see how accidentally tripping over cables will snap them right off the platter. I have to sew the connector to the fabric so it doesn't pull on the wires. The included PWM controller is cheap. I made sure they worked, then immediately threw them aside to replace with an MPPT controller. The diameter of the accessory wires is quite small. Not bad for such short runs, but it would be nice to have something more powerful. They really need something to put them on - at least so they don't get blown away by the wind, and at most. Keep them pointed towards the sun. Good thing there are eyelets on the side for attaching a rope/bungee cord. I plan to build a foldable PVC frame to secure them. What's good: I haven't had them that long, but they work well. I connected 2 in series and the MPPT controller keeps them at around 40V when running. On a cold day in mid December I got about 300 watts (with a peak of about 350 watts) from 400 watt panels. Not bad considering the shortest day of the year. They are lightweight and portable for their size. This allows the RV to be packed and moved quite well compared to the fully framed aluminum and glass top I used. On a sunny and pleasant day in early April in Northern California, I got about 250 watts of peak power (from two sets of panels). And got 1.9 to 2.0 kWh per day, including tilting and adjusting the panels to follow the sun every hour or so. For Northern California I expect about 4.5 "hours" of solar energy per day in April: 400 W * 4.5 hours --> 1.8 kWh. So 400 watt panels should produce 1.8 kWh assuming the panels were standing still. But with tracking (albeit manually) I calculate 2.2 to 2.5 kWh per day.