... different voltage and the electric current; it is mainly development for laptop power.3 independent output voltage lines, it can charger different ... volume, long life ,a perfect good. It’s suitable for kinds of laptop, and many digital products, such as mobile phone,PDA ... Battery:Polymer lithium-ion battery (Capacity:12000mAh/3.7V)Input:Laptop adapter Output voltage: 5V,9V,16V,19V,22VOutput current:5V ...