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Why is some mobiles get so hot when it is charged.

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Answers (8)
The battery is hot. While on a call, and being against your face and in your hand, the built-in battery temp sensor is restricting the ability to charge. Its dangerous to charge a hot Lithium Ion Battery......... Just in case, if the charge indicator turns off (from heat). Take the battery door off and put the BB on its face, battery exposed, and it will cool down, and automatically resume charging when the temp drops.
Posted: 11-04-2012 @ 14:14:45
They may become warm, but not really hot. If they do get hot, they have either been overcharged or are defective. A good charger detects the sudden rise in temperature and switches itself off. A good charger for a mobile phone battery has a thermoswitch that turns off the charging function at around 70°C and thus prevents overcharging and overheating.
Posted: 14-10-2011 @ 12:24:30
It is normal problem and also if battery is not original one
Posted: 20-07-2011 @ 12:27:22
frnds saometimes its happen when there is sorting problem in cell phone....if yours cell get so hot while charging its my suggestion to take to mobile care because there is sorting problem in it...thnx..
Posted: 20-07-2011 @ 12:22:40
due to some high internal resistance . u better switch off the phone while charging
Posted: 19-07-2011 @ 16:42:54
it is hardware problem. your mobile is short problem in mobile parts like i.c
Posted: 19-07-2011 @ 12:45:44
due to more application..
Posted: 19-07-2011 @ 11:46:05
it is normal problem...for those type of mobile, switch off when charging is recommended.
Posted: 18-07-2011 @ 20:27:56