iphone 6s battery draining
ios 12 draining battery on my iphone 6s i have updated to ios 12 but the battery is draining too much like 25 to 30% overnight and while using facebook and watsap its draining too much what should i do ? i have tried everything but nothing worked should i upgrade to ios 12.0.1 ?? i have replaced my battery 4 to 6 months ago what should i do need help ...