Like, the small pocket sized ones? Largely a gimmick, at least compared to a normal power brick, if you have access to mains power. The solar panels work, but the area of the panel is so small you have to leave in it direct sunlight for several hours.
Like, the small pocket sized ones? Largely a gimmick, at least compared to a normal power brick, if you have access to mains power. The solar panels work, but the area of the panel is so small you have to leave in it direct sunlight for several hours.
Which is not good for the life of the batteries