A little heavier than expected for the battery size. Solar panel looks to be about 1.5W and should be considered as extending the runtime for the battery while charging devices, rather than something that will charge the battery itself. Built in USB plug charges at 5V @ 1.75A = 8.75W, while the USB-C input charges at 4.75V @ 1.55A =7.4W and the USB mini input charges at 5.02V @ 1.28A = 6.5W.

Have used it for only 10 days, and I am pleased with it. Good product. Shoppers Plus is a great service. I have been ordering from them for years and years. I am always happy with their products and shipping and especially with their customer service. Beats Amazon!!! (When it arrived however, the package had been opened! So I do not even know if I received all that was supposed to be sent to me. This is not on Shoppers Plus but on the shipper.

Solar is just a gimmick, would take literally months to full charge via solar, but still, it's something. The way the cables work is great, the size of battery for price is fantastic.

Il est préférable de le recharger avec un cable au tout début pour avoir 100% de la charge et ensuite le soleil fera son oeuvre

These are incredible power banks, with fairly fast charging capabilities & so far, all the cables are still working. Like the display as to how much juice is still in it. Nice how the cables tuck away when not in use, so don't get hooked on anything. They are quite bulky, so not easily slipped into your pocket. For this reason & that there are absolutely no operating instructions that come with this, is the only reason i give it one less star...if i could, it would be 4.5 stars. There is a power button on the side that you need to double click to turn on 2 led lights on the end. You must double click them again to turn off-had to leave on overnight, as I ran out of patience trying to figure this out. I have yet to try charging this with the solar charger out in the sun(middle of winter here), but it definitely does not charge through a window, so unsure how well it would work out in the woods. I think the sun on the front display lights up green when within enough sunlight to charge ( once again, no instructions) These do take a while to recharge when plugged in if fully exhausted.

Works great but might be a little big/bulky for some.