iPhone battery drains while charging and streaming internet radio

It didn't drain the battery, it cannot supply power to the iPhone so it was solely running off battery power while you were playing it and of course the streaming uses a lot of battery power. The 3G has no firewire charging circuitry and both the iHome and Logitech you have use the firewire pin to charge.

The iPhone is indeed "smart" enough to run off the charger rather than the battery and it will not use up the battery faster than it can charge.

Do you have a 9 or a 19? If your earlier posts, which say the 19, are correct, it isn't supplying any power to the iPhone so you are purely running off of the battery.

I have the exact same problem while streaming with Pocket Tunes.

In the car I use a Griffin iTrip and all is well with Pandora. Phone stays fully charged while streaming. When I switch to Pocket Tunes the phone gets hot and the battery drain rather quickly.

I did notice that the charging symbol (lightning bolt over battery indicator) changes to a electric plug as soon as I switch to Pocket Tunes.

Weird and ANNOYING!!!!

I have this same issue while streaming the Dan Patrick Show while at work.. My phone is connected to my computer but will NOT charge while the show is streaming.. The minute I turn off the show it starts charging again with no problem.. I have no clue as to why this happens.. It may have to do with the 3G network simply sucking the life right out of the battery while in use.. I can use the iPod and other functions while charging with no problem..

-I have an iPhone 3GS.
-I stream audio from iphone.wlsam.com.
-Since I am streaming inside mobile safari I can open other apps while the audio is streaming.
-If I open maps with location services enabled I ALWAYS lose a charge no mattter what adapter I'm using.

Can someone else confirm this? (note: I use maps while I'm driving and new map tiles are constantly being loaded.)

Hi! I believe the issue you are facing is due to the iPhone overheating (which it does quite easily, especially if you're downloading data). Apple has a safety mechanism built into the iPhone software which cuts off power when the phone heats up more than it should, in order to protect the battery. I've experienced this problem many times. You can ascertain if this is the case for your phone by cooling the phone down using a fan while it's streaming data. You should notice the iPhone starting to charge like it should.

I hope this helps. (: