Morphie Juice Pack for IPhone 5

[Spanglepants]

Got a 16 GB IP 5 and constantly using up the internal storage. Saw these Morphie 16 GB Juice Packs and wondered if anyone had used one?

http://www.pcadvisor.co.uk/reviews/mobile-phone/35...

[jas xjr]

funnily enough aa chap at work had one today. he has singing its praises . he is not a driver neither does he work at a desk . so his charging options are very limited .
has had it a while .

[Spanglepants]

Thanks probably worth considering then