Is heating up of battery of Galaxy s3 normal?

Yeah its normal.Any battery gets heated up when in use due to the internal chemical reactions and charge flow.It specially gets heated up when talking for long or surfing net. But you have to keep an eye on it that how hot its getting. 35-40 is okay but shouldn't be more than that.

Thank you.

Samsung Galaxy S3 Heats Up

2.5% consistent with hour on a similar time as idle is approximately general for any telephone. How good is the cell telephone sign on your residing abode? If the sign is vulnerable then the telephone cranks up the skill and so drains the battery swifter. In areas with good sign skill the battery will drain slower than in areas with undesirable sign. the numerous element to envision is that the telephone isn't huge wide awake each and each and each and all of the time, which will seem on the important battery utilization exhibit demonstrate. no remember if it somewhat is consistently huge wide awake then some app is inflicting problems and should be fixed. yet coping with the value and battery utilization you gave it somewhat is probably not the case.

All phones do this. I really don't think it's supposed to happen but it does anyway. So I'd say it's pretty normal. Just leave the phone down until it cools a bit.

during internet usage all cheap phones and high cost phone will get heat.during internet access mobile emits high radiations so the battery gets heat.

its normal. the way the battery works means that this is standard, it happens to all phones