Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Great advice, but I'm pretty sure the OP was talking about the Transformer Prime, as mentioned in the thread title.Welcome to the forum.
Yes, it is normal. It does have thermal protection circuitry. Sometimes when this is triggered the charger quits working and the fix is to put it in a ziploc bag, place it in the freezer for 20 minutes and it will reset. Happens rarely, but it can happen.
Early versions (pre-July) got extremely hot, too hot to touch. Since then they have been redesigned to be cooler, but still quite warm to the touch.
Great advice, but I'm pretty sure the OP was talking about the Transformer Prime, as mentioned in the thread title.
As for the hot charger - I'm pretty sure this is normal. As Frederuco brought out, this happened with the original Transformer as well. The Prime (and original Transformer) does charge very fast when compared to most other tablets; there's a lot of current flowing through there, and hence more heat than usual.
However, there's no way to be sure as the Prime hasn't really been out for too long. We can only go by the example of the original Transformer until others comment on the issue who actually own the Prime.
It would need to be a USB 3.0 port to charge as that is what the Prime's charger is based off of (AFAIK).
I can't confirm for sure but 5V is the de facto standard and I would be really surprised if it required 12V.
I've noticed that the AC adapter gets rather warm... is that normal?
I have seen car charges with USB output with 12v instead of 5. One place I saw was selling a Car Charger with a 12Volt USB, labled specifically for the TF201 as he said it needed the 12V and that "5 Volts on the Prime just doesn't cut it" (his words).
When I look at the 110 volt Asus charger it does say it has both 5 volt and 12 volt output.
View attachment 5521