Jackery Explorer 300 PlusPortable Power Station (Open Box)

Pro: Slick interface, super easy to use, very nice app Con: They spontaneously die and don't hold nearly as much energy as they claim. There's something wrong with the charger / discharge somewhere. Not recommended. How I discovered this: I wanted to use these to battery-power some small devices for a few days off grid. Seems like a perfect use case. I tested them three times with a 1-2 watt load. They should be able to power it for at least four days at that draw. The first night, both of them died overnight, for no apparent reason. The second time, one of them ran for days, and one died the first night. The third time, the *other* one ran for days, and the *other* one died overnight. There is something fundamentally wrong with these things that makes them unreliable. I strongly suggest you test your device the way I did before you need to use it.