Thanks for the great posts. I was battling with what Solar charger to get and was convinced by SierraNevada that a Newtrent was the way to go for me.

Ordered it and got it. Looks solidly built and test charged several phones at home. Ended up with the following:

http://www.amazon.com/gp/product/B00GK745L2/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1

New Trent PowerPak Ultra 14000mAh Portable Dual USB Port External Battery Charger/Power Pack for Smartphones, Tablets and more. (Orange/Black)

Basically $70. I figured I can also use this for my business travels when flying cross country. A little heavy, but I look forward to taking it on climbs and testing it out.

Thanks SierraNevada.