... it can be charged to all brands of laptop. Such as Dell, Hp, Toshiba, Samsung, Acer, IBM, Sony, Lenovo, ... capacity of power bank: Charging for laptop: Choose the voltage of Laptop (check the voltage of the original ... .5*2.5mmAcer,Compaq,Delta,HP,Fujitsu,Gateway,Toshiba,Liteon etc.M6DC 19V5.0*3.0mmSamsung etc. ... .5*2.1mmAcer,Compaq,Delta,HP,Fujitsu,Gateway,Toshiba,Liteon etc.M8DC 19.5V6.5*4.4mmSony ...