USB Charging from computer making battery hot

[StevenSeed]

The back of my phone feels hot when I've been charging it using the USB port on my computer , but with the normal mains charger it's fine (the *#*#4636#*#* battery status thing shows the battery temperature at 30 degrees after 30 mins of charging and the back feels hot also).

I checked it was cool before I plugged it in, and it feels hot across the area where it says "with HTC Sense" in capital letters. Also, I'm using the "charge only" option on the phone.

I wondered if anyone else had experienced this?

 

[Rastaman-FB]

have you got stay awake when charging enabled?

 

[StevenSeed]

I haven't got a clue. Not sure how to check that - give me a minute...

 

[StevenSeed]

That's a no. The box for stay awake whilst charging is unchecked. And right now I could fry an egg on the back of it.

 

[Rastaman-FB]

mine gets a bit warm but not that toasty. usb charge is has a lower throughput than a charger so i dont understand unless the cpu for some reason is going nuts

 

[kerwin]

is it getting hot at the top or the bottom,
if it's the bottom it's the CPU, if it's the top it's the battery.
It might be the CPU being used during sync?

 

[StevenSeed]

is it getting hot at the top or the bottom,
if it's the bottom it's the CPU, if it's the top it's the battery.
It might be the CPU being used during sync?

It's the bottom, so it must be the CPU. Though it shouldn't be syncing as I have it connected to "Charge only"!? (It's a work computer so I can't connect it as anything else really).

 

[Eris Ed]

This has been discussed before I think, but I can't find the thread. It's something to do with the electric current that you feed the handset when charging using different sources. The topic was about using USB car chargers and how they got so hot the phone shut down and restarted (not good when using sat nav!).

Anyhow, my phone gets hot when I'm charging from my PC and using the phone at the same time, like when transferring pictures to SD card via USB.