EcoFlow 400W Portable Solar Panel for Power Station, Foldable Solar Charger with Adjustable Kickstand, Waterproof IP67 for Outdoor Camping,RV,off Grid System

After charging my two batteries with my personal gas generator up to 85%, I chose to do the next 15% with 1 (one), 220 bifacial portable Solar panel. Eco flow suggests up to four panels. it did take over four hours to do 15% in full sun. The solar panel was very easy to set up, just click and connect. The hardest part was setting it up for sunlight because it folds in four panels, I had to make sure I didn't crack the glass panels. I am a 63 year old female, using a solar panel for the first time. Next time I use it it will be a lot easier because the learning curve is over.

I hooked up the solar panels to the charger today. The panels and charger are on my in full sun. Started at 29% battery and now is at 42%. Charges at a slower pace. It's been charging for about 2 hours. I have four panels for 400 watts.

Excellent Solar Panel, very good power output... when I tested, I was getting about 350 watts out of each panel, all without even trying hard to get the angle right. Would definitely recommend.

I tried out this 400W solar panel with one of my Delta Pros yesterday. It was a partly sunny day, so the wattage input varied greatly. However, I was able to get up to 367 W of input at one point, and was able to charge from 30% up to 61% within an afternoon. I'm happy with that!

Finally I was able to use this over the weekend and I am impressed on the performance. I was able to fully charge my Eco-flow Delta Mini while using my fridge. So I will be traveling to Moab in the next couple weeks and I am excited for I know I can depend on this. I will further update my reviews after my trip so stay tune and for now I can highly recommend it.

Great product!!! Since the first test shows 38% input 2 hours before sunset. I'm really happy with the efficiency.

Hoked up a single 400 watt panel. I live in orlando florida so sun is always available With some adjustment it was pushing 300-325. I purchased a second panel but havn't tried them in series yet. I hope to get 600-700 watts. I think it will do the job with an extra battery. .

I bought one portable EF 400-W solar panel and tested I for “real output”. I liked it so I bought a second panel and connected it to my DELTA Pro Ultra. Yesterday's two panels in series produced 3.16kWh of solar energy on a sunny day. My only concern is how long will the folding panels last, when compared to the fixed panels. The big plus is that the entire system is portable, so it can be moved if/when I change locations or go camping. The DPU is a bit heavy, but a small dolly can be used to assist in moving it. Proprietary connections on the inverter and battery may limit connections to future advances or improvements, but they also make it very simple to setup and get the system running to support a small home office.

Ordered it as soon as it became in stock again. Took a while as it shipped from Hong Kong. Packaging was damaged but luckily the panels were not. The panels are heavier than I thought they would be. Works very well to recharge a standard delta unit - generating max of 200w by lying flat in morning sunlight. Took about 1 hour to go from 86% to 100%.

When i opened the box, at first glance, the Leather is worn off like it's been used for days before. Upon further unboxing, the cables look like they were jammed in the box and not packed properly. I love EcoFlow products and this is the first time ever this has happened. I am going to return this product and see what happens when i place a new order.