Why is my battery draining so fast? just started this week

[Android Central Question]

I have a galaxy s6, owned for 2 years, never had battery issues until this week. Will run down from 100% to 20% in one hour!!!

 

[awgybop1]

Try letting it die completely(0%). and then let it charge back up to 100% without any interruptions whatsoever. See if it doesn't fix it.

 

[methodman89]

Open maintenence, battery, usage, and see what's doing it. Do you have wifi scanning on.? Bt on?