Share your experience!
Hello i bought my Xperia J a week ago and have a couple of issues with the battery:
- the battery only lasts like 10 hours, even if I am barely using it, no wifi, no gps, no autosync, no apps in background
- the battery even discharges when i turn my phone off (went down like 15-20% in 2 hours when turned off)
- when i came home yesterday my battery was completely empty, so i put it on the charger, the led blinked red. When i woke up today, the led was green... But when i turned on my phone the battery was like 3% ?? so im charging it again now...
so whats going on with my phone? How long should a xperia j usually last when you leave it in standby the whole time? and why does the battery discharge when the phone is turned off?
I tried resetting to factory settings now, charging the phone to 100% and then just letting it run in standby (GPS off, wi-fi off, internet off, brightness low and just clicking the on button to check the battery level once a hour):
After 7 hours it was down to 37%.
Then I turned it off, waited for 15 minutes and turned it on again: And again the phone had discharged by about 10% while it was off!
Phone is going back to dealer now, hope I get a correct working xperia j now
Here are some screenshots, feel free to discuss what the phone is doing with the battery while turned off 
let the battery drain > recharge it to 100% > let it drain again > charge it to 100% that should calibrate the battery.
this should not be the problem since the phone already had like 10 charging cycles... However I'm giving it a last chance now before I send it back. I'll report back then. Too bad it takes like 7 hours to fully charge 😕
too bad all the answers got deleted due to the rollback...
However I have a new xperia J now and everythings fine now.
It was definitely some hardware issue...