inputs.text: ok backup battery - gsi backup battery solar charging feature works well pumping cable computer not plan getting much recharging sun recharge exposing unit sun slowly carry backup battery traveling not depend sun charge gave three starsi suppose one camping hiking wilderness away computer wall charger solar function would return small amount juice unit otherwise gsi solar backup battery not much better stitchway ultrapower much cheaper charger also one stitchway units works well not pretend suck energy sun