Newpowa 220W Monocrystalline Solar Panel 10BB Cell Solar Panel Off-Grid Charge System for RV Marine Boat 220Watts (220w)

I now have 10 of the 220W Newpowa panels. The first six I ordered worked so well that I got four more. Well made, no problems at all, and all of them worked exactly as specified. The packaging they come in is almost bullet proof as well. Despite some rough handling by the delivery service all of the panels were unscathed when they arrived. In actual use they work as specified. In excellent weather conditions they are putting out almost their full rated power, even up here in Wisconsin in less than ideal circumstances.

This has been a good solar panel in my experience with it. Mounted to the top of a truck cap for a camping setup it is rock solid. I have seen it put out over 200 watts at times.

I was able to hit 182 Watts after re-alignment, that's about 86% of their rated output ....which is very good. I will be grabbing 2 more of these now that I have tested their performance. (For my MPP Solar 1012LV-MS project). Product came well packaged with no damage, highly recommended.People need to learn about how these work before they post bad reviews. All panels have a rated wattage output. Example: A 100w panel simply means it can have a 100w DC output under "Optimal" conditions.This includes unobstructed sunlight/proper angle alignment/power drop in cabling-etc. And the time these panels are in that perfect zone is maybe 5 hours a day. And remember, panels will pull only how much is needed. If your battery is charged and you're only using 150w factoring in inverter efficiency, don't expect panel to pull more wattage than is needed unless you are grid tied...it just doesn't work that way. I get 500-550w on any normal day with 3 of these 210w panels ,Off-Grid and very pleased with that performance. it recharges my 200AH Lifep0 battery from the night before and powers a basic home office at the same time. No issues.

UPS delivered panel. Arrived in perfect condition. Couldn't wait to try it out. Set it up in a shady place, late afternoon, and watched as it started to charge my Lifepo4 batteries. In the shade, voc was 18.1 volts. Current from the panel was 1.1 amps. Current going in to the batteries w was 1.3 amp. How do you charge with more amps than the panel outputs? Enter MPPT! Built a frame for the panel and set it up in sun. 19.3 volts but only 2 amps. Took a reading at the panel and got over 9 amps short circuited. Checked amps at end of my 30' set of solar cables, 10AWG. and only got 2 amps. Panel works as advertised or even better. I will be buying another one soon. Definitely need to try some #6 wire to get more power to the charge controller, Panel was generating 3 volts in moonlight a few nights ago. Nothing wrong with this panel!!!! Definitely recommend!Update 9/2 Received a second 210 Watt panel and paralleled it with my first. My yard is very shaded with a large tree, so panels only get full sunlight in the afternoon. Panels provide energy from before sunup to after sundown, albeit only an ampere or so. It still charges! This afternoon I noticed my charge controller had stopped charging in full sunlight. Quick troubleshooting determined that the solar input fuse had blown. Replaced fuse and controller started charging again. I had a 20A fuse inline with the first panel and never had any problem.. With 2 panels, input current was 23 amps in full sun. What a happy problem!! 25 Amp fuses handle the new configuration very nicely and batteries really charge quickly. Very pleased with Newpowa panels and highly recommend for less than perfect situations.

Check with me in a month. i'll be using 10 220w modules for the primary power on a small passive solar home that I'm just now finishing in the Mendocino Natl. Forest in Lake County, CA. So far I like the build quality and the size (easy to handle). I'm doing a ground mounted array as the panels can stay cooler in hot summer weather and produce more wattage. I'd prefer the frames were black bot you can't have everything.KT

After a bunch of research and reading a thousand reviews, I decided that the 210W Newpowa was not only the best value available, but also the best solution for our limited roof space.I'm not an expert, but I've installed and tested at least 15 solar panels over the last ten years. For an RV application, shade is an important factor and these panels are as good as the best brand names at handling low sun and shading.(I had to laugh - right after I ordered my Newpowa panels, I called up a friend who's upgrading his large Class A motorhome. This guy is an electronics fanatic, a retired communications engineer who now lives and breathes solar power. When I told him I had ordered the Newpowa 210W panel - I hadn't even told him that I was shopping for new panels - he said that he had also just ordered a bunch for his Class A. There's no better feeling than knowing that others, especially experts, have independently come to the same conclusion.)The narrow width of the Newpowa panels is allowing me to easily install 840 watts (four panels) on our 2021 Navion and I may even find room for one or two more. The new RV's are much more dependent on battery power than prior models, and I refuse to run the noisy generator or be dependent on finding a campground with electrical outlets.And great customer support from Newpowa. When my Amazon shipment was lost, Amazon was quick to make things right and Newpowa stepped in and made sure I got a replacement order fulfilled immediately. You won't get that kind of support (or these prices) from any of the popular consumer-oriented companies. And I didn't even mention that I would be writing an Amazon review.

I mounted 4- 220 Watt Newpowa panels flat on my RV. At that angle the panels produce about 125 watts max each in full sunlight. My Lifepo4 battery pack is 300 amp hours. 3 panels would have been sufficient at 220 watts each but would require some sort of tracking. Instead of tracking, I elected to add a 4th panel. The system works great. And the panels work great. My only complaint is that I had to cut and replace a few of the MC4 connectors on the panels due to bad molding and the MC4s would not lock. A simple fix.