I had a 100 watt panel from Allpowers that went bad after just a few months, and after no response (after many attempts) from them, I had to replace it. I purchased that one from eBay and wished I'd used Amazon instead. I might have had some luck returning it under warranty. Obviously, I certainly can't recommend Allpowers products! (see update below) This panel looked to be much more rugged than the Allpowers and I snagged the 100 watt version from Amazon. I am super pleased so far after just a month of daily use! The panel is indeed much more rugged and has a stiffer and more durable feel to it. It is producing its advertised output rating with no problems. In fact, on really sunny and clear days, it's producing about 125 watts (my solar charger shows it's putting out 25 volts at 5 amps). The included legs/stands/kickstands work well.
UPDATE 07/18/2021: I got a message finally from Allpowers and they say they will give me a full refund. I'll let you know if this happens.
Here's a compact 2 in 1 power bank and charger from Powerowl. It uses 4 (included) 18650 Lithium batteries for a total of 10000mAh. You can use it as a charger for your 18650 type lithium batteries or as a power bank to charge USB devices. As a battery charger, it only charges the 18650 type lithium batteries. All three USB ports can be used for charging external devices. It has 2 USB-A ports and 1 USB-C port. The charger itself is charged via the USB-C port. Amazon Link