Newpowa 35W 24V High-Efficiency Monocrystalline Solar Panel - Designed for Off Grid Systems, Charges 24V Batteries of RV, Boat, Camper, Trailer, Gate Opener

Arrived quickly, well packaged and works great

I ordered 2 more of these after I got this one. That should tell all there. Nothing to really rave about. It's just a solar panel. Quality is good and the frame is sturdy. I will tell you if you are starting from scratch on a DIY solar system use 24v panels or higher. Reason being is you can use less expensive wires when you run your lines to your solar charger. Less amperage and higher voltage means less expensive wires to your charger. Note... after your charger you will need really big wires but that isn't a very long run. I have 20 12v panels and I have to use pretty big wires at the final connection point to the charger. I thought when I started this project I would just need a few solar panels so I got 12v to keep it easy. I never expected to have a 3000 watt off grid solar array. I have them hooked to a separate circuit in my workshop and I painted all the outlet boxes green to remind me its a solar circuit. I love using the off grid system. It makes me smile every time I know my power company isn't twisting the knife in me. Also buy an MMPT charger. Amazon has a good selection. Some people say its not worth the money just buy another panel but I get more than a panels worth of extra energy off my unit. That and prices went down on the charger over the years. Good luck.

This is a great little solar panel. Not too big and not too heavy. I am going to use this for my RV to keep the batteries topped off while it is in storage. Plus it is a true 24 volt solar panel. This makes it much more efficient. Until I buy several large solar panels and install them on my RV, this will keep my coach batteries in a good storage charge condition using the Victron solar charge controller shown in the photos. Sure, I could have bought a less expensive charge controller, but Victron is a quality brand and it has Bluetooth built in. So now I can take readings on the charging status right from my phone. In the last photo, you can see this solar panel is putting out 26 watts. That is excellent! Remember, a 30 watt panel is tested in absolutely perfect testing conditions. So on a "normal" day having this put out almost its full rated capacity of 26 watts is great.

24v small form factor for the occasional light maintenance charge of 24v battery(1.5KWh) and big power station (2KWh). It's not enough to recharge those in a heavy drain situation due to long power outage. That's the job for larger panels. High enough voltage to meet the MPPT charge voltage requirements for my systems.

Hard to say like or not. I put it on vehicle roof and the Efficiency is just suitable for a small fan and phone. I think I can not adjust the surface towards the sun, so the efficiency is not satisfied. Now it does not work, I do not know whether it is because of the bumps on the road.

**Update 3/2024** Never got a chance to put these 60W panels to the true test in the desert, had not yet figured out how to fit them in the already overpacked car for Boondocking. The 2x50W version of these I made into a suitcase performed extremely well. Placed rocks under stands to prevent desert winds from blowing them over. Finally got these 60W panels out of storage to add stands to in the same way, and found one junction box damaged. Hadn’t noticed it when I first did testing. Contacted Newpowa support and they have stellar customer service. They were unable to help with parts for this older 5 busbar model, but shipped a new replacement 9-busbar panel. All 3 panel types are in the latest picture. Tested very well in SC sun. Have new car storage setup for more panels. Will attempt a desert trip soon. Great panels and support. **Original Review**I really like these solar panels. These 2 60-Watt 24V panels are going to be my second DIY suitcase. 28” x 20” 11 lbs each high quality mono panel was my decision maker for me. My first 2 panels are the 50-watt 12V version of these from a year ago 23” x 20” 9 lbs each original decision maker to fit in car. I use those in series for higher voltage to a EPEver Tracer 30A (see Will Prowse YouTube videos for more info). Those are great little panels, and I regularly get 90% or greater power in good direct sunlight, New York summer or Carolinas winter. These new 24V panels Vmp-33.54V is equal to the 2 x 12V panels in series, so they should parallel with that suitcase just fine. I have been testing great for a few tests, 115watts from 2 60-watt 24V panels parallel via MPPT into LiFePo4 12V 100ah battery nearly topped off. I will try to update after extensive testing and use.

Using to charge batteries for a gate opener across my driveway. Has worked great for 18 months now.

The original panel was delivered without flaw. However the product did not function as described. Plenty of volt capability, no current (watts. 0.0). Returned with shipping a replacement panel, however this panel was performing weak again plenty of voltage 7 watts of current.. However panel failed again soon after no watts plenty of voltage! Long and short- the panel has one bad diode. 15v 45a. 15vSQ045 pair of diodes. Panel produces good voltage up to 41 volts I am returning the product again asking for a refund!