iPhone 5 not displaying battery usage data

I had to change my clock to 24 hr format to show battery %. With timer,location, ect icons the phone just runs out of room

 

Let me ask, when you fully charge your phone, do you ever turn it off/reset?

If you charge your phone and shut it off at all, it will clear the battery usage stats.

 

Have you tied Settings>General>Usage>Battery Percentage switched ON?

 

Do hard reset

 

I am having this problem too. Tried hard reset, drained phone all the way to shutdown and charged to %100 then did another hard reset and still wont work.

 

Kind of a late post.
But yeah. Same problem. :S

 

Restore phones, and set it as new

 

you know when you do a hard reset, that zeros out the battery usage time right?

soft reset retains the usage info. but a hard reset will make it go blank and wont work again until the phone is fully charged to 100%.

so basically, lets say your phone is at 100% and you remove from the charger for an hour. now the standby will say 1 hr, 0 min. hard reboot and look at the usage time and it will have dashes or be blank.

 

try to reset the system, it will be useful.

 

Oups :
I noticed this since 7.0.4 (that does not mean it did not occur before !).
Do you think it might be dangerous for Data's or hardware ?
It would really bother me to restore tho whole stuff if it is an harmless bug that could be solved with 7.1 iOS update !
What could be the cause ?
Regards.