This is the best power bank you can get in this price range. Light weight, slim design and best built quality . if your phone battery is 3000mah you can charge more than two times with this power bank.Two mode of charging 1A and 2.1A power charging. But the self recharging need more time 8 to 10hrs. It is perfect gift for everyone you can simply carry the powerbank wherever you go but in jeans pocket it will little tight.