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4-inch iPhone released in March 2016 with similar hardware specifications to the 6S. Available in Silver, Space Grey, Gold, or Rose Gold with 16/32/64/128 GB storage options. Model: A1662 and A1723

Battery short life after replacement

I replaced the battery and it worked fine, then started dying at 10% charge, then 20%, now it dies at 63% of charge, reboots and shows 3%. It has been about 3 months since I did the battery change, and it keeps failing sooner every day.

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Hi

Let’s download coconut battery so we can get a better idea of what’s happening

You cans download it on a Mac

Here’s a link!

https://www.coconut-flavour.com/coconutb...

Thanks:-)

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Artem, are you iFixit staff? I don’t download apps from random folks in forums.

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This seems to be a gas gauge problem. There is a battery gas gauge component (SWI) near the battery, if it has been knocked off or nudged it will cause the problems you are facing. It used to be a common problem after a battery replacement on these phones. Usually we would rule out a faulty battery first but this component is easy to examine so we would check it and move on to replacing the battery with a known good one.

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crwdns2944067:02crwdne2944067:0:

Thank you. New information for me. I had a shop repair the phone after the battery replacement, as it had other issues. I’ll run it back by them. Just now, it showed 68%, about what I’d expect with the use today, then it shut down, rebooted, and showed 11%. It’s been plugged it for about 15-20 minutes and shows 78%. Gas gauge seems like a good description. Reminds me of the electronics on British cars from the 1960’s with devices and lights by Lucas, Prince of darkness.

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Can’t seem to paste my screenshot of battery usage.

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crwdns2934285:0crwdne2934285:0

Get the battery replaced. Loads of faulty 'new' batteries kicking about.

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Hi!

Is your battery calibrated properly? If not, follow this guide.

Also, Mind showing us information about your battery by using coconutBattery 3 so we can understand and investigate the problem?

Cheers, Artem.

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Artem, I did the correct “calibration” when I installed the new battery, to avoid setting a battery memory. I worked as a police dispatcher for 40 years, and did maintenance on portable radios as they evolved. I never had one deteriorate like this in all that time. It actually holds s charge while not being used, but acts like it has a discharge memory level that’s decreasing in capacity with each discharge. Only conclusion I can come to is it’s a faulty battery. I was hoping somebody had more info on this particular type of battery.

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crwdns2934285:0crwdne2934285:0

Artem, are you iFixit staff? I don’t download apps from random folks in forums.

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crwdns2947414:01crwdne2947414:0:

nope im not a fixit staff, if you dont want to download it, its your choice :)

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Dan Lewis crwdns2934231:0crwdne2934231:0
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