my galaxy s4 is draining my battery

[kelest]

My phone is draining my battery even tho i have everything off. my mobile data and even in airplane mode. It drains lile 10% in 3-10 minutes. I tried off my phone and ot still the same. And i notice that under the back camera is always hot, which i got no idea why.

I hope someone can help me with this critical issue. Thank you very much.

 

[kelest]

Like typingthis messages mybattery went down by 17%. Holy****!!!

 

[kelest]

Oh and this is a new battery that i bought 2 days ago i charged 8 hours and unplugged it lasted me for like 2 to 4 hours i think. and i didnt use my phone.