The Apple iPhone 5s was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Silver, Gold, and Space Gray.

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Battery drains too quick in standby

I have a 5s that isn't water damaged and the battery drains really quick in standby. It has been updated and I've replaced the battery. Any ideas?

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I have the exact same problem at the moment with one iPhone 5. So far I have check the battery if it is good with multimeter, all good. I am cleaning the phone from liquid damage and we will see if it does improve the battery life. I think may be power management IC or U2 IC, but not sure yet. I will have to roll out everything else before start replacing IC. I hope you find some more information on this problem.

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Hi James

In my case it was two inductors on the logic board are broken and that's why the phone doesn't hold battery.

I would suggest to open the phone, remove the metal protections on the motherboard and inspect for any damaged components.

Good luck

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Hi James,

Approximately how long does your iPhone 5s battery last in standby mode? I recently changed my iPhone 5s battery and I'm getting only 11.5 hours in strictly standby mode (not using the phone at all). After installing the new battery, I made sure it was calibrated properly by letting it drain to 0% and then did an uninterrupted full charge afterwards. Not sure how long the standby mode of newly installed ifixit battery should be but I'm guessing it has to be more than 11.5 hours on purely standby mode starting from 100% charge amount.

Update (02/24/2016)

Hi James,

I believe my issue has been resolved. After installing the new battery from ifixit, my battery was draining very fast because I was using a 3rd party iPhone charger. After letting my battery drain to 0% completely, I decided to plug in an authentic Apple iPhone charger into my 5s. Lo and behold, the excessive draining is not there anymore! I'm averaging about 10% decrease for every 2 hours of standby mode. So I'm roughly getting close to 20 hours from full charge to complete 0% battery life. Before I was getting less than 11 hours from full charge to 0% battery life. Try using an authentic Apple charger and charger cable if you haven't yet. I hope this helps.

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Probably around the same or less, I have had phones in standby for days and not lost more then 5 percent

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lethan,

According to Apple standby time for 5s is around 220 hours. Not 20! People report it around 180 - real life figure.

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Mine looses half the battery time over night am charging it twice a day, what a load of rubbish this phone is

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Do you have a history of using 3rd party chargers?

Does the phone feel warm/hot anywhere on the board?

I assume you got a high quality battery and not some cheap one?

How was the battery life before you swapped the battery?

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Hey Patrick,

I have used primarily 3rd party chargers in the past. Unfortunately, I was using a 3rd party charger and cable after installing a new battery. I tried charging with an Apple charger and cable and saw a significant difference in battery life and draining rate.

The phone did not feel warm or hot around the logic board area. The battery was purchased from ifixit.

Battery prior to swapping a new one was completely zilch. The battery totally died and could not power on even with the lightening cable connected to it.

So, in my case and generally speaking, 3rd party cable and chargers are not recommended for charging iPhone battery.

Thanks for the questions Patrick! I appreciate your help. :D

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Good to hear there's an improvement, however, 10% /2 hr drop on standby mode is somewhat excessive. Hopefully you just have a lot of background apps or getting a lot of calls/texts.

What about the usage time for the phone?

I did a test not too long ago and for a new battery with no apps running except for carrier service, I got about 182 hours of standby.

Hopefully damage on the U2 charging chip from using cheap chargers hasn't been done, otherwise that's a pain to fix without the right tools.

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The actual improvement wasn't much after all. I got maybe around 13 hours as opposed to 20 hours (projected) of strictly standby mode (in my case, I put it in airplane mode). Even 20 hours of standby is terrible.

I'm currently not using the 5s. I upgraded to iPhone 6. Thus, it's more of a backup phone now. I would guess the actual usage time for the phone would probably be extremely short.

If you are getting 182 hours of standby on a new battery while I'm getting a meager 13 hours than I believe my U2/IC component is pretty much damaged and thus, the poor standby mode time. I don't have the time to fix the U2/IC component which requires soldering so I will count this as a lost. Lesson well learned. Don't use 3rd party charger or charger cable. The effects of it will come back to haunt you later.

Thanks for your input. Even though my repair for this device stops here, I'm glad I got an idea of what was causing it.

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My iPhone 5s in airplane mode just sitting in standby was 13 1/2 days. It's my backup phone so I just wanted to see and it lasted that long but I only woke it up once every couple days to see how it was doing.

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