Delivered in 4 days to st. petersburg. I have a smartphone with a 4100 mah battery, expected from a power bank three charges. Got what i wanted. Three full charge from 5% to 100% and the fourth time recharges by 40-60%. Now you can safely abandon the outlet for a week.
Just received, i will try and comment again Good performance, fast charging works excellent, a battery charge served to charge 5 times my phone (3120 mah) so far all working