2800mah Universal Powerbank

4 2800mah universal powerbank products are offered for sale by suppliers on Alibaba.com, of which power banks & power station accounts for 100%. A wide variety of 2800mah universal powerbank options are available to you, such as over-charging, over-discharging and short circuit.You can also choose from protection, quick charge support and high capacity 2800mah universal powerbank,as well as from type c, usb/dc, and single usb 2800mah universal powerbank, and whether 2800mah universal powerbank is li-polymer, polymer, or polymer battery.