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Charging

LucifExire

Lurker
I was charging my phone last night and it said "Preferred charging" I've never seen this on my phone and wanted to know if anyone knew why it showed up
 
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That is fine.
Slower charging is preferred, because it is better for the battery.

Fast charging shortens the life of the battery.

The slowest charge would be from a USB port from a computer or a laptop.
It may not carry enough current to charge and use the device at the same time, and will be incredibly slow, but build up a negligable amount of heat.

Normal charging, 'preferred' in your case, is a standard rate that will charge while the device is used, and should build up a nominal amount of heat.

Fast charging builds up a ton of heat, and charges quickly- although not always thoroughly.
This will wear the battery out quicker than the other charging speeds.
 
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