Although I am still committed to this product I have found their quality is a bit too variable, in particular their cables. Two have failed on me and two are idiosynchratic in the way they charge (you have to twiddle them to get them to charge!) It would appear they are addressing these issues, the latest two cables I ordered are more robust. I also found their mini battery a big disappointment, the advert implied it would recharge my devices but it only half charged my Ipad. A replacement device was not much better. The concept (again) is great, but the product doesnt live up to expectations.