battery getting too hot in Lumia 520 and 720

[Mainak47]

After the update of the developer preview of windows phone 8.1, my two Lumia phones is getting too hot. What is the problem??

 

[xsonwong]

After installed all apps, it will start to cool down.

Also, WiFi sense drain battery

 

[Cybersonic]

How hot is too hot? Is the phone giving error messages or shutting down? If not, it should be fine until Nokia pushes firmware.

 

[Mainak47]

After installed all apps, it will start to cool down.

Also, WiFi sense drain battery

Didn't got your point. What do you mean by all apps?

 

[Mainak47]

How hot is too hot? Is the phone giving error messages or shutting down? If not, it should be fine until Nokia pushes firmware.

Very hot but not giving any error messages nor shutting down itself. Only getting hot.......