universal external laptop battery

This universal power bank is a new product developped by Shenzhen Yutiantang Technology-YTT. It is can be used to charge all kinds of laptops and USB(5V 1A) powered electronics when go out. with a high capacity of 30000mAh lithium-ion battery pack. andcontrolled by intelligent curcuit.you can carry it anywhere to provide long-lasting power for your laptops and other electronical devices. The output voltage can adjust to 16V(+/-5%), or 19V(+/-5%), So can usedfor almost all the laptops. USB output 5V(+/-5%), can used for almost all the moblie and consume products. with charming apperance like a cola can. It is a good gift sharing with family and friends when camp and long distance travel. Technical specs Universal portable Charger/ power bank(NEW PRODUCT) Model: YTT-30000 Capacity:30000mAh/3.7V Size: 175*80(mm) Color: Silver/Black/Red Weight: 720g Battery type: Lithium-ion battery Rated Input: 14V-20V/2A Rated Output USB OUT:5V, DC OUT: 12V/16V/19V Charging time about 6h by common laptop adapter Life span: two years Nine DC tips available: Main connectors: 5.5 x 2.5mm for HP, IBM, Acer, Compaq and Gateway LCDConnectors A: 4.75 x 1.75mm for HP, Compaq, NEC and AsusConnectors B: 5.5 x 2.1mm for Acer Connectors C: 5.5 x 3.0mm for Samsung Connectors D: 6.3 x 3.0mm for Toshiba and NEC Connectors E: 6.0 x 4.3mm for Sony and Fujitsu Connectors F: 5.5 x 1.7mm for Acer Connectors G: 3.5 x 1.35mm for Sharp Connectors H: 3-pin 7.3 x 7.4mm for DellNine USB tips foralmost mobile phone Safety features short circuit protection, overcharge protection, over heat protection CE FCC Rohs