🌞 Upgrade Topsolar SolarFairy 30: Portable 30W Foldable Solar Panel for Cell Phone, Car, Boat | Off Grid Charging Kit for 12V Batteries & 5V Devices Review

The first solar power label says 19V/1.4A which is almost 30W i.e. 27W. BUT it seems the manufacturer has the open circuit voltage (19.0 volt ) and the short-circuit current (1.4 amperes) and simply multiplied the two values to get a dummy output power of 27 watts. Actually I am measuring on a 5.5mm jack, the maximum power point voltage is 14.6V and the MPP current is 1.32A, so maximum power = 19.3W. They measured noon, normal to the sun, large ones Altitude, clear blue sky, low humidity day…

It works very well, I use it almost every day. The fold spacings seem to have worn off a bit, but are ok for now. Doesn't generate electricity when some clouds obscure the view of the sun, but that's not a problem. The panels themselves are very durable. I use it to charge a 13Ah battery and power a fan (10W, 0.8A). The panel produced is enough to quickly charge a phone or tablet. It gets quite hot, but the fabric doesn't dissipate heat well, so I think this affects efficiency. The bottom line…

I haven't had a chance to use it in the field yet, so this is more of a first impression. I am mostly positively impressed. The panels feel very solid and thicker than I expected but still wearable enough and comfortable to the touch. There are several adapters, as can be seen in the photos, but surprisingly there is no USB-C adapter. You will probably want to buy a USB power adapter if you want to use it with your cellphone. Also, there doesn't seem to be a USB socket, which seems odd. Again…

I expected this product to be convenient to use I got this solar panel because it has a DC output connector, I expected either a 5521 or 5525 barrel connector. Read the fine print from Revain Buyers. I have two Energizer lithium-ion solar generator batteries. Both can have solar inputs, the 320Wh can handle 100 watts, the smaller 240Wh can receive 45 watts of solar input. Both via barrel ports 5525. I was still able to charge them via Type-C input. This product was listed as an 'UPGRADE'…

I used this on a sunny day in Texas and it charged my Jackery Explorer at 1% about every 5 minutes. I didn't have to worry about finding an adapter or anything, one of the tips provided worked perfectly in the Jackery's input jack and quickly showed that it was charging. Also has alligator clips for continuous battery charging. It also has 2 carabiners and holes so you can use it on your backpack or hang it on anything. What was interesting to me is that the solar panels are not glossy and…