I have seen several causes that can lead to a fast battery drain. A few days ago a copied file got corrupted and wasn't being able to delete it. what resulted in a constantly 100% CPU load causing the battery to emty in a few hours.

Second of all try removing the sd card (if you have one) mine caused the same problem using 100% load all the time due to faulty formating the sd card. Best format it in dos and out of the phone in a card reader. this solved the problem with me.

The n900 is like a small laptop. I dont know if you ever used one but mine is emty in only 2 hours! I think when fully using the phone you still have 6 hours of use.

And ofcourse the battery drains in 8 hours if you have an internet connection running all the time! my n96 is emty in less then 2 hours.

But i must agree that when the phone is in idle mode, it has to atleast make 48 hours before the battery runs out of juice! and thats far from the truth at the moment!

in 2012 a company will introduce a new kind of battery that charges in less then 6 seconds. it works with some sort of pipelines to guide the electricity to its place. at the moment its like spraying and waiting till it falls onto the right place with the current batteries. These new batteries will not only be charged 10.000 times faster but also have less weight and higher capacity. They are working on it at the moment. But i think its very expensive in the beginning so it will be more likely 2015 before we will see them in normal phones.

Here a few articles. there are a dozen on the net:

http://www.slashphone.com/69/1671.html

http://www.autoblog.com/2009/03/12/n...harging-still/