About products and suppliers
7994 power un products are offered for sale by suppliers on Alibaba.com, of which portable power stations accounts for 15%, plugs & sockets accounts for 4%, and power banks & power station accounts for 1%.
A wide variety of power un options are available to you, such as over-charging, short circuit and over-discharging.You can also choose from protection, quick charge support and high capacity power un,as well as from type c, usb/dc, and usb/micro usb power un,and whether power un is li-polymer, or 18650 lithium battery.