If you use a known good battery and still get this fast discharge, then consider the following:
First possibility is that you a have a short somewhere on the board, causing battery to be depleted because this short is consuming power and dissipating heat.
And also the charging circuit in the iPhone 5 is infamous because of a component on the board known as U2 which often fails. The risk of breakdown increases with the use of bad quality charging cables and car or wall chargers.
There are 2 major symptoms that I know of, that indicate the failure of this component:
A/ The phone will charge *seemingly* normally, but if ever it shuts off, it won't turn back on. Change the battery, and it will work normally until again it shuts off. Then again it won't restart. Chronic.
B/ The battery will discharge very quickly and will be dead within 1-2 hours!
C/ Device will not communicate with computer via USB. As if never plugged. And/or you get fake charging (says it is charging but does not).
I don't know how much it costs to fix this in Europe or the USA, but it should be pricey because of the required special tools, skills, and experience.
My advice is to take it to a reputed and trustworthy repair shop that can test the device, confirm the prognostic (may be you're lucky and it is something different and easier to fix), and quote you the repair.
OR have it exchanged at the Apple Store by paying an exchange fee, if still possible (as you already worked on it, they may refuse to do it).
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5 commentaires
Hi,
I have a similar problem with my iPhone and it's battery life. I replaced some of the internal parts like the sleep/wake button and volume controls on my iPhone. I had to take apart a lot of items including the motherboard. I was wondering if there was a way of damaging any of the components in the process upon reinstalling the everything (shorting something on the motherboard, or even possible damaging the battery somehow). Whatever the case, it's frustrating and I'd like to fix it. Anyone else have thoughts?
par Aps152010
I'm suspicious that there is a malicious background task (that isn't shown on settings under battery usage) that is using CPU cycles. For all I know it is also using my LTE bandwidith and WiFi. If someone was going to write malware like this for the phone, of course they would make it so it hid from the user.
par zender8584
I had the same Problem. What I did was deactivated iMessages and Cellular data. and it doesnt drain fast anymore
par Luis Nunez
I have the same problem. I just put in a new battery two days ago. Loses 1% every minute with no apps open.
par Eloise Stevens
i bought a iphone 6 battery pack from fixjeiphone it after doing it correct the battery still drains fast and its running slow i cant even play some apps i have tried to fully restore it and delete everything its still very slow i need this phone for school
par abdinasir abdule