Why is my battery is draining so fast when it is not used?

[Android Central Question]

My galaxy s4 mobile battery is charging too fast using 2amp output charger and aslo draining so fast like 1 percent drainage per minute or less than.what may be the issue? If mobile data is ON it's draining so fast than ever please suggest me good solution

 

[belodion]

I don't know what is a good solution because I cannot know the cause of the trouble, but the phone may need a new battery.

 

[B. Diddy]

Welcome to Android Central! I agree, the battery is probably old and failing. Try a new battery.

 

[Rukbat]

Especially considering that the battery is 6 years old.