inputs.text: great battery decent solar charger - device charged galaxy note 2 3100 mah total capacityusb charging charged several hours usb completely charged galaxy note 2 0 100 spare battery 4000 mah capacity solarxlsolar charging car windshield accessory power tells glass lower power chargingresults far bought extra 2 panels test withdate charge panels weather hours rehemarks05132013 8 1 mostly cloudy 10 plastic on05142013 12 1 partly cloudy 10 plastic on05152013 12 1 partly cloudy 10 plastic on05162013 8 1 mostly cloudy 10 plastic on05202013 12 3 mostly cloudy 10 plastic on05212013 13 3 mostly sunny 10 sunny day05222013 17 3 mostly sunny 11 hazy clouds05232013 14 3 rainy 11 finally took plastic off05282013 24 3 mostly cloudy 6 could residual charge before05292013 39 3 sunny 12 sunny 90 degrees05302013 46 3 mostly sunny 10 95 degrees cell battery dying05312013 51 3 mostly sunny 1006012013 25 3 sunny 10 06042013 35 3 mostly sunny 806052013 28 3 sunny 12 led light not facing sunconclusion great spare battery solar power not great vary based sun positioning chargeraccessory power helpful staff definitely help questionsll vary based sun positioning charger thinking adding two panels becauseaccessory power helpful staff definitely help questions updates later