... MP3, MP4 etc. Based on the lithium polymer battery’s advantages of longer rechargeable life, light in ... ports, 1 USB portsProduct’s parameter:· Built-in battery capacity: 12000mAh/ 3.7V(Li-Pol batteries)· Solar ... voltage: 12.6V DC· Output voltage: 5.5V ,11.1V,16V,19,24DC· Output current: 500~4000mA· Weight: ... four DC output with color : Blue stickers denotes 11.1 V, green stickers denotes 16 V, yellow ...