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Definitely losing a lot more with 6.1.2. I never really focused that much on my battery before until I saw how quickly it dropped one day with the newest update. It's odd too since I don't use Exchange at all. I just use Mailbox.
 
Same here. Experiencing worse battery life on 6.1.2, going to try a restore and see if that helps.
 
Like I posted in another thread :rolleyes: .how many are there !

Whatsapp is a possible culprit as per my experiments ... and I have no complaints here (this is with Whatsapp, Videos, Music, call, and so on btw)

IMAGE_6182F92B-060F-4147-8879-14F190845E1B.PNG
 
hi guys, i had the same issue once updated to 6.1.2... battery drops by 30-40% during night (network and wireless disabled, airplane mode), and usage was around 1.5h!!!

Then I updated all apps available, and disabled the LTE option (General-> cellular-> eneable LTE --> OFF)..

actually I get major improvement... at 20% of battery left:
usage: 3h 47minutes
stby: 1day 9 hours

try this maybe can help!
 
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