battery problem in apple phone

My 1 year old iPhone SE 64 Gb is running out of battery within half a day. By 1300, it goes into low power mode. Recharged till 1700, runs out by 2200. Initially it used to last the whole day. Infact when I was in Singapore, on Singtel, it used to last for 2 days. There are no new apps...

Hello All, One of my apple I phone battery is start inflated and screen is start coming out. It happened second time. First time they fixed it and replaced with another iphone. I called Apple service desk and they say phone is out of warranty so they will not support. I told it is manufacturing...