... : 2.1 kilograms Solar panels: 7.5 W + (1.25 W *4) = 12.5 Product descriptionSolar digital camera backpack, travel bag,laptop bag,charging ... 3.5 HBS-02/02 A 54000 MAH 13 "LAPTOP working 10 Ha.(fixed outlets) USB 5 V 1 A, support cell phones, digital camera ... , PDA, PMP, GPS etc 5 V charging digital products.b.(eight file adjustable output) 3 V 1 A, support ...