Hii everyone I am going to share my personal opinion with index power bank 11000 mah. My big brother is using this power bank from 2 months. I am also using this, when my brother use this power bank, he always say it is best power bank for me. His battery backup maximum 5-6 hour. Also 11000mah battery power. It’s charging only 2 hour, then his battery full. This power bank is user-friendly.and service support is good, I am satisfied this power bank and it’s prize.