My phone's (Lumia 930) battery draining very quickly 10 to 15 days ago i have noticed that ... :( What should I do?

[Engr MohsinRana]

My phone's (Lumia 930) battery draining very quickly 10 to 15 days ago i have noticed that .....

Before that days battery life was very good even 2 days spend without any tension even turn on WiFi .....
Now what's the reason behind this damn thing .... :'(
What should i to do for longer battery Life....
Plz guys help me .....:

 

[Enrick11123]

Re: My phone's (Lumia 930) battery draining very quickly 10 to 15 days ago i have noticed that .....

Same problem is faced by me.. With Lumia 1520.... Yet there is no solution