5W-Solar-Battery-Trickle-Charger-Maintainer 12V-Solar-Panel -Charger Waterproof Built-in Blocking Diode Small Solar Panels for Car, Automotive, Motorcycle, Boat, Marine, RV,Trailer, Truck, etc.

After having 4 shipments of a 200w panel from another company each broken by Fedex ground it was a pure pleasure to get this one in good condition shipped by USPS. The only problem was at first they would not deliver it because of being "too large for mailbox" but after some fumbles and a long weekend, plus driving 25 miles to the post office only to find out they ignored my coming to pick it up message, it was delivered today intact.Testing in sun the voltage (21.1vDC) and amperage (9.3a) is at spec and I see only a minor dent on the aluminum frame. All in all I am very pleased.Amazon however might look into the issue of if these panels are too large for the USPS to routinely deliver. Us rural folks are not close enough to Post Offices for easy pickup.

Have this hooked up to Renogy 10 amp charge controller and LiFePO4 battery to power a cellular game camera. Works perfect and keeps the battery fully charged

This 10W panel does indeed produce 10 Watts in full sun.Produces about 200mA in weak morning sun.Wires are a bit short. No mounting bracket is included.There is a blocking diode installed inside the small black cover.Works well with my small charge controller.Good value at $18.-Chris

Panels have reached maximum wattage rated during summer. No problems after several months.

Four, 200-Watt panels arrived packaged well. I tested the panels in FLAT mounting and ANGLED mounting configurations to see what I could expect from them. Flat Mounted: I managed to get just over 125-watts of power from each unit which is roughly the same I should expect from a less than perfect mounting angle. (Taking into account a 22% loss for flat mounting and the additional percentage of power I lose from the latitude my residence is located at. (Northern California). The panels were tested at a prescribed angle for my latitude (for direct sunlight) and produced close to 175-watts. These appear to be as good as more expensive, name-brand, 200-watt panels I also own. These are nice quality panels at a good price point. I am happy with the purchase. Would purchase again if they become available in the future.

ACOPOWER 12V 200W Mono Solar PanelI live at 42 degrees north, so the sun is not as strong as it could be for some farther south. But one day in July at 10:30AM, it was putting 150 watts into the Buletti EB3A portable power station. Bluetti was already at 50% charge. So the solar panel charged it up fully in less than an hour and a half. Can't comment about lifespan, but I am happy with its performance on a summer day.

more quality than I expected

These work amazing to download power from the sun would recommend you put two on your car get about 130w per panel

tres bien

Mais pas encore installé

Working great, will report back next season on its condition after leaving it outdoor.Was able to get 1.2A of charge current into a 18650 at Vmpp 17.5V at the input.When shaded, it dropped to 100-120mA, still very usable.

My order came very fast and we installed it on our sailboat to charge the battery. Amazingly it was easy to install and it started to charge right away.