My iPhone won't turn on by itself even tho I changed my battery
A few weeks ago my iPhone 6 battery starts acting up, so one day my phone completely dies and wouldn't turn on so I try different chargers and it powers on but goes dead fast, last week I took it too get fixed and they gave me a new battery 5/6 hours later my phone dies again and the man from the store tells me I can't let my phone die or it won't power back on by itself and wouldn't explain too me why not does anyone know why? Or what's wrong??
Is this a good question?