I have the Goal Zero, two panel.... no regrets. It does take sunlight to work.... cloudy days don't work so well. Ed F
Check out the Mophie battery packs......
jeez, cant you guys get off facebook or twitter while out in the woods?
New Trent for me also. Kept my I-Phone alive for 8 days, and power left over for probably 2-3 more charges. Pretty impressed by it.
Brent