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The device stops charging after hight power consumption

Hi :)

I am trying to understand why an Iphone 5c could stop charging while doing a huge power consumption.

I had two study cases:

- the phone was used as GPS while driving into an unknown city. The phone was connected to the car power and so charging while executing a famous GPS app. After a while, the phone stopped to charge, the power supply became undetected. and the phone shutdown a few minutes after arriving at destination, the day was saved!

- second case, the phone was used to listen music on youtube connected on a 4G network and traveling in a very high speed train, so the mobile relay changed really often. The phone was connected to a powerbank. After a while, the phone stopped to charge, the power bank became undetected. And the phone shutdown a few minutes after arriving. Again the day was barely saved

In both cases, the phone was a little warm at the end, but nothing unusual. Several hours were needed before being able to charge the phone again and starting it up.

It really looks like a protection mechanism against a too high power consumption, if it is really the case, apple engineer really underestimate the power circuit of the phone, and they weren't in a smart day when doing their computation. But I think it could also be a failure from the power circuit or event the battery itself. Has anyone has similar issue? and if yes how did you solve it ?

Thanks for any answer ;)

Answered! View the answer I have this problem too

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Do you have it synced to a Mac or PC to run diagnostics?


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I'm thinking bad battery.

Usually this ONLY occurs when you have a replacement battery that is actually a refurbished one with a replaced gas gauge board in the battery (to reset battery life statistics to make it look like a new battery with no charge cycles used).

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as you have mentioned, you used the cars power in 1 case and a power bank in the second. you should try a new battery and plug into a main output

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Thanks for your answer.

So the battery is probably at the end of its life. By main output, do you mean the official apple charger ? The car power supply and the power bank were both apple compatible and deliver more than 1 amp to the phone. So it was supposed to be enough of power to execute the application used.

What's disturb me, is the fact that the phone stopped to detect the power input, like nothing was plugged into it. If it was just a battery failure, I could understand the charging process was doing nothing, but not being undetected :/


the battery would be the first thing i would check, yes i mean the like a plug socket in your house. if all that comes back still not working then it could possibly be the charging chip on the logic board and you would need a technician to replace it, charging port could also be an issue, look inside and see if you can see any dust or fluff etc


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