My smartphone invites 1124 mAh with this cable gives it the S4 loud Battery Monitor 40% approx per hour so cheap usb cables on top it is between 100 to 450 mAh which is almost nothing
so the problem with this cable
it has which unfortunately prevents cases in very many smartphone to fit a large plastic box on micro B and I mean thin shells with other USB connectors is the connection made thinner therefore 1 star deduction otherwise Top Cable
Conclusion super investment in USB cable market at a great price (everything is cheaper has strong cutting back in the charging performance or compatibility)