Why is my battery draining so quickly (Lumia 730)?

[spch]

Need help with this weird crap that's been happening with my Lumia 730

When I go to sleep with say ~40 % battery left and when I wake up I find the phone battery at single digits or completely discharged. I have 4-5 apps allowed to run in the background (whatsapp, skype, Battery Saver, Cortana, Time Me Tile) , and I only have location on.

I feel like when the phone is idle it is eating more battery than it should. This is happening for past 3-4 nights. When I'm using it it doesn't burn though battery as fast as it does when I leave it idle.

Any help would be appreciated.

 

[anon(8150199)]

Re: Need help with this weird crap that's been happening with my Lumia 730

WhatsApp is the culprit.

 

[Dinu Ciobanu]

Re: Need help with this weird crap that's been happening with my Lumia 730

I'm also using a Lumia 730 but don't have this problems, in idle it doesn't uses battery like at all. Maybe an app that was updated eats too much of it because of a bug or something.
My programs that are allowed in background (WhatsApp, Cortana, facebook, facebook messenger... And pretty much everything else)

 

[spch]

Re: Need help with this weird crap that's been happening with my Lumia 730

Ok I will disable whatsapp to see if the issue goes away.

 

[Dinu Ciobanu]

Re: Need help with this weird crap that's been happening with my Lumia 730

Can't be WhatsApp, since I'm also on latest version and no problem. Look in battery saver graph that shows what apps used battery the most ... Maybe clue is in there
Else... Try a soft reset