Just received 400w solar blanket and I thought I'd put it to the test on a dark overcast rainy day here in Kent. (today 4/9/25) My previous solar panel was 160w portable Ecoflow, immediate contrast, the blanket is half the weight, smaller and more compact and more than double the Watts. I had deliberately run my 1024wh Delta 2 down to 2% specifically for the test to see how the blanket performed. From 10am laid blanket outside and it was cloudy and overcast was getting 30-60w. Started raining shortly after and it got a good wetting, brought it in conservatory and laid on the flow wiped off the water, and got 23w. Rain stopped and took it back outside. First hour Delta 2 went from 2% to 5.3%. but after the first hour it brightened up. 2nd Hour it's upto 12.3% and I hung it on our fence. 3rd hour it's upto 24% , sun is partially coming out, i'm starting to see 320-340w from the blanket (with sunshine) . 4th hour Delta2 is upto 43% max 343w from blanket, from alternating overcast and watery sunshine. 5th hour Delta 2 is upto 60% and sun is starting to appear properly, blanket briefly touched 380w then 394w ! 6th hour suns gone back in and largely cloudy overcast only getting 60w-200w but Delta 2 reaches 71% . 7th Hour cloudy and variable 60-330w and I ended reaching 83% on a distinctly poor day (typical British weather day) for solar panels. Very impressed as it proves I can recharge the Delta 2 and in bright sunshine I believe I could charge from 0 to 100% in under 5 hrs.
Complaints : It was a bit windy and I hung the blanket from 3 of it's loops from screws I put in the top of the fence. I also pegged down the bottom part. I had also laid it flat for a time and pegged it out. Several of the loops pulled out, didn't seem particularly strong. Not an issue I will sew them back stronger .
Conclusion: I got this specifically for the Delta2 in our motorhome and the test is poor conditions has given me complete confidence that the blanket is a good recharge method whilst camping. The small size and small weight is an added bonus.

Very portable unit that can be quickly and easily deployed. Works quite well,surprisingly, even when partially shaded. Good investment IMO

It folds smaller than my hiking backpack and weighs barely anything. Perfect for squeezing into my campervan or taking on wild camping trips.

The 45 watt USB-C port powers my laptop, while the dual USB-A ports keep my phone and power bank topped up simultaneously. So versatile.

Even on a cloudy day, it provided enough power to keep the refrigerator fully charged all day. Since it has two USB-A ports, we were able to charge our phones at the same time without any issues. All devices received enough power to stay powered up and in use.