I've been debating getting a water resistant/waterproof battery pack and solar panels. I'm outside a lot already and have done a few kayaking trips, camping trips, etc. Seems like most the battery packs I find have small/weak solar panels that I likely won't get use out of. was debating panels 10w, just to recharge my external http://solarproductspro.com/product/ap-10w15w28w60w/

and maybe https://www.amazon.com/10400mAh-Waterproof-External-Flashlight-Smartphones/dp/B00MG9VVW4?ie=UTF8&m1k=cl_summer&m2k=cl_summer&mnsid=cl_summer&qid=1437351971&ref_=sr_1_1&sr=8-1&t=cl_summer&tag=creativelabsac-20

or http://www.ebay.com/itm/20000mAh-USB-Portable-External-Solar-Battery-Charger-Power-Bank-For-Cell-Phones/361408151497?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Dcc5f08789d74498bb0a3dd4d5dd7aab7%26pid%3D100338%26rk%3D2%26rkt%3D19%26mehot%3Dag%26sd%3D311429159162

or http://www.ebay.com/itm/like/311429159162?lpid=82&chn=ps&ul_noapp=true

I have a 1390mA from years ago, doesn't even give me a half charge on my droid turbo.