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Old April 5th, 2013, 01:51 PM   #1 (permalink)
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Sad CPU Usage while charging

I noticed that while the phone is charging, it never drops to 0 % CPU usage, so no deep sleep. I searched for an answer but none of them were about S2.
Is this a normal occurrence in the Android OS or the S2 ?

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Old April 11th, 2013, 01:02 AM   #2 (permalink)
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Its normal mate.

Deep sleep doesn't occur while charging. CPU is at 200 MHz at this time.

I don't know the reason why though...
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Old April 11th, 2013, 01:34 AM   #3 (permalink)
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The CPU works as charging controller, eg. controls that the battery temperature remains in its charging operating range.

The Li-Ion battery's temperature operating range is:
for discharging -20C (-4F) to +60C (+140F).
for charging 0C (+32F) to +45C (+113F).

The battery won't be charged if its temperature is below 0C (+32F) or above +45C (+113F) because the phone's charge controlling will project the battery.
Therefore it'll shut down charging until the battery's temperature will meet again the charge operating range.

Google Translate is to blame for my grammar
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Last edited by Harry2; April 11th, 2013 at 03:16 AM.
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