Did you try downloading it through the market or through the website itself? It's in the market, so you should be able to get it in there without a problem. However, you should go into settings, then applications and then check "unknown sources" so you can install non market applications.

Yes, attempted this through the Market.  Other app downloads are fine, but it won't let us download Juice Defender specifically.  Since we've only had the phone for a day, this is all new.  Can we just go to another website and download it directly?

Huh, I just tried to download it in the market, and you're right, it says "this item is not available through your carrier." Interesting.

 

But, if you go to JuiceDefender - Beta that one will download? Very odd.

Probably just an Android Market glitch. It happens sometimes. I downloaded it last night after I hard reset my phone and it worked fine.  Wait a day or two and it will probably be back up.

We have had so many and I mean MANY calls about people using battery saving apps and internet quits connecting. Its mainly because these people don't know how to properly use them but if I had to guess at&t is now blocking them as its becoming to be a big problem.

I myself probably take 5 to 10 calls a day about this issue,imagine that multiplied but every agent and you begin to understand.

Well, I have a number of Android devices registered to my Google Account, so when I go to market dot android dot com, I can click to download apps, and then a dropdown list allows me to say which device I want it pushed to.

 

For Juice Defender, the Galaxy S II is greyed out, but the others are not. A message also tells me that my carrier has prevented the app from going to my phone.

Are you running UCKH7 or UCKK6?

 

UCKK6 is known to have Market issues because Google hasn't updated things to handle the new fingerprint.