Help Battery drain while phone is sleeping

[Paris2015]

Hi guys,

I have OPO, I suffer from battery drain while it is sleeping, on WIFI, and on LTE or 3g it is worse.
I denied wake up and keep awake on google service, google app, and other apps, bluetooth and GPS are off all the time, on battery saving, all my apps are greenified.
Minimum brightness. I loss during a 5 hours night sleep 12-15%.
(BTW I tried to put it on airplane mode, it was much worse, about 8% an hour)!
What could be the reason?
Anything I can do?
My phone is not rooted.
Thank you!

 

[mikedt]

Was it recently updated, OK before the update? If so try a factory reset.

 

[Molly rancher]

Might need a new charger, try using a differant charger. Sometimes you can have you phone plugged in, and if there is a problem with the wall block or cable it wont be able to power the device properly. So if thats the case your phone will die slowly.

 

[Paris2015]

Was it recently updated, OK before the update? If so try a factory reset.

Thanks for your reply.
Yes. battery drain got worse after Lollipop update (5.02) I did a factory reset but it didn't help...

 

[Paris2015]

Might need a new charger, try using a differant charger. Sometimes you can have you phone plugged in, and if there is a problem with the wall block or cable it wont be able to power the device properly. So if thats the case your phone will die slowly.

Tried another charger, same thing..