Blackberry Extended Battery
 

Just picked this Seidio up and love it! Finally charged it after 4 days. :thumbsup

same size or double size of a normal?

Double the size of normal. They send you a cover. I like it because it is grippy, unlike the original BB that is flush. I've dropped it a few times because of that.

Now, I don't have to use the rubber cover I had on it.

Blackberrys only drain their batteries if they have applications running in the background ...

It took me a while to figure this out, but I now get up to 4 days normal use from one charge on my Curve 8520 .. but I am vigilant about checking for running background apps.

http://content.screencast.com/users/...01-06_1610.png

From the main icons, click the BB button and select Switch Applications to see what is running in the background ...

All that should be running other than any app you are currently using, is HOME, PHONE, MESSAGES, BROWSER, (SMART WIFI - worth getting for conserving battery power by up to 70%), and BBM. Any other apps that are listed here, should be closed.

(Since changing my router's name to "surete du quebec" (Quebec Provincial Police) several months ago, not one person has tried to brute force attack it looking for a free wifi connection ... LOL!!)

I had no programs open and it would drain after 3-4hrs. Just started happening recently.

Battery went bad then. My curve stays charged w/ the stock battery for well over a day with a few apps running. as long as i'm not doing a lot of texting and keeping the screen lit up, that is.