where's this been all my life

i purchased this as my phone really old and battery power don't last long, i also have no car charger socket in my car and needed it for holiday and sat nav, this was brilliant, like saved my bacon, it takes good 8 hours maybe slightly more to charge but last fair while, i drove back 3 hours using it plugged in full way and held its life, easy to use, i keep in my bag all times as great for extra boost or full charge, i own samsung, but a friend iphone user borrowed it for half an hour other day and was well happy that withhin short time gave her 40% charge, id seriously reccomened and would defo buy again, real talk