iPhone 5 or earlier Quick discharging

[Thomasxxxxx]

Hello,

On 25th of June I changed battery in my iPhone 5. Afterwards there were som consequences. I will describe it more detailed. The battery in the night with iPhone powered off goes from 40% to 8% during night which I do not think is normal. Now I have turned off iPhone during the night and turned it on in the morning and battery went from 100% to 86%. Is this behaviour OK? What should be wrong? Should I use my iPhone with new battery longer to get rid of that discharging or the problem will be somewhere else?

Thank you.

 

[BugeyeSTI]

Sounds like your “new” battery is no good..

 

[Thomasxxxxx]

It was changed by authorized dealer, I suppose it is authorized. But I have jailbreak and installed tweak BatteryLife and it says at the beginning that 0 charging cycles has been done a battery health is 100%. Also when using iPhone it discharges normally. Only problem with discharging is when it is turned off (in that state I suppose it should not discharge so significantly) remember I have Li-pol battery once in some other device and it was discharging too quickly firstly but after made a few cycles, it goes to normal discharging. So that is why I am wondering if the battery is really wrong or needs to go through some cycles to be normal. If you can see, firstly during night with turned off iPhone battery went down 32% but last night only 14% so it can point that it is making better.

 

[BugeyeSTI]

I’d wait and see if it gets better with more charge cycles.. You can always go back to have it replaced again if it doesn’t get better

 

[akash.nu]

Probably one of the jail broken apps?! But there’s no way for battery to drain when the device is turned off.

 

[Thomasxxxxx]

I have also iPhone 4S and iPhone SE and no one of them is discharging overnight so quickly. I have changed battery in iPhone 4S lately too but I do not remember whether I had this problem or not but now 4S does not discharge while turned off. Maybe the battery must go through some beginning cycles to get ready or what.