Aukey® amzdeal Mini Portable 6000mAh External Battery, Emergency battery / mobile charger / power bank for iPhone 6, 6 More iPhone, iPhone 5S, 5, 4, 4S; Samsung Galaxy S6, S5, S4, S3, Note4, Galaxy Tab, GPS, many other USB-charged mobile devices etc. White (Electronics)
After a first charge long enough, this little battery, to my amazement, much faster recharge my Samsung Mini S4 that the original charger or car charger! For ten euros, it was in his pocket a small, elegant and not too big object capable of charging