ALLPOWERS SP029 Portable Polycrystalline Solar Panel 140W

I purchased the 200W foldable panel was my first mistake. I wanted to use it with my Bluetti EB55. I didn't know anything about solar panels and purchased the SP033 because the EB55 can take in 200W of solar. Well the specs of the SP033 don't match the intake specs of the EB55. The EB55 can only receive 8V of solar and the SP033 claims 12. However, because the solar panel was so bad, only producing 5V it actually worked, but never producing more than 100 W of power. I thought the spec mismatch was why I was not getting more watts from the panel.

So my second mistake was I purchased the SP029 140W panel. It's specs match the range for the Bluetti EB55, and this was as good as I could get. I would never find a 200W panel inside the EB55 limits. I received the SP029 and it has terrible output as well. As you can see in the pictures, it is a beautiful sunny day in south Alabama in September. A few clouds but not much. I am getting 55W from the solar panel, pitiful. On a perfectly clear day I may get 68#, less than 50% as claimed. You can barely see the Watts Meter, but it was producing 2.91A and 17.??V. This seems to be the problem with these panels, they don't produce the Amperage they claim.

I contacted the company about the 200W panel and they did send a replacement, but the closed circuit voltage is like 40V and the Amperage never gets above 4A. I can't plug it into my EB55 because the volt range is to high, so I don't know exactly how many Watts it will produce.

I will also say the original SP033 is getting worse. At the same time as the pictures were taken for the SP029 it was producing 65W.

My advice would be look elsewhere. I will put this review on Amazon as well, that is where I purchased the unit.

We are thinking about buying these and distributing them with a product we manufacture. I am still in testing.
1 Your instructions say that you need a charge controller to charge a battery but you send a cable that connects directly to the solar panel. I will most likely toss these and not put my customer in the position of damaging their batteries. You mention this in your instructions but I don't like it.
2 It sounds stupid but it is easy to plug the two leads that come from the solar panel into each other and create a dead short. I'm taping the wires together about 2" from the end so the customer can't make this mistake. You should think about doing the same so I don't have to.
3 Your 140 watt panel has a box where you can charge a cell phone, ect. You don't mention this in your instructions. You need to send instructions that describe the use of this box. Your 200 watt panel doesn't have the same box. This seem inconsistent. What is the future here. Will the new 140 be made without a box or will the 200 have a box included???
Thanks for listening, Frank Diebold WaterStep

ALLPOWERS 140W Portable Solar Panel Charger is decent. This is my second unit

When in full sun I was able to get 6 amps. I love that these are glass panels that will not get scratched easily, yet at only 10lbs are easily carried. All the adapters make it that much more versatile.

I already have an AllPowers 372Wh Power Station Generator. Which works great. I have used it to power lights and fans during a power outage. Also used it to power Christmas lights on my pontoon boat this year. The Power Station is easy to use, well built and even supports Bluetooth connectivity through an app on my iPhone. I compared many brands before choosing Allpowers. In the end AllPowers offered the most features, quality and value for the price. Very glad I made the Allpowers choice and highly recommended it. I am an AllPowers fan.