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My battery was draining extremely fast so I made the setting changes that would better manage life- locations, wifi, background app refresh etc. then changed the battery with a X2 life battery ( the gold 2400 mah or whatever it is) I am still experiencing the same short battery life!!! IOS 10.1.2 is currently running system on the device. is there internal components to blame here and can I replace them to et the battery life back??? any help is appriciated

Are you using an OEM apple charger? Or do you use a car charger? Sounds like you either damaged the gas gauge line bead (FL11) or damaged the tristar chip, both of which require microsoldering.