Zens ZEPB01B00 Wireless spare battery eg Samsung Galaxy S5 / S6 / S6 Edge, Google Nexus 4/5/6/7, Apple iPhone (4500mAh) (Accessories)
I bought on the go to charge this battery charging. I'm very happy with it, very visually beautiful and the capacity is sufficient for twice the Samsung S5 load from loosely. Can only recommend this Zens ZEPB01B00 spare battery.