iPhone 5s's battery with separate charger flex.
Due to persistent problem with iPhone 5s's battery - don't you plan to make your own flex tray with integrated charger ?
It can be even, probably, with micro-usb connector )
My 5s has lot of problem with charging.
I replaced battery, but it hot like !@#$ now (
And there are no proofed solution for me (
Is this a good question?