Xiomi power banks Is great, This product is Very usefull and Xiomi Mi power bank 2 price is great.I ordered this product and very happy. This power bank is very power 20000 battery back up and mobile charged is very fast and safe, Powerbank Charger back up to 5 to 6 days. This is great and usefull. Xiomi product is Good and This power bank is so powerfull, i'm happy this product buying My phone alaways get full charged all time And no problem for use all time use my mobile, no tension. Electricity off and my mobiles charging percentage very low, but next I buying this power bank and then i'm happy.