Hi,

my phone started to shutdown when sliding keyboard out. I recorded a video and published on Youtube.

http://www.youtube.com/watch?v=5bBNPKHTSVA

I guess that there may be a problem with battery (after 6 month ???), so I installed Battery Graph to gather some data about the usage.
After one day of testing I noticed that when battery is below 60% its votage is between 3,65 and 3,75 V and at the moment of sliding the keyboard it drops about 0,050 V and causes the shutdown.
Do You guys have any idea if my battery is dead ? Or is it a problem with keyboard and some kind of short cicuit ?

Today I bought battery replacement ATX Platinum (li-ion 1500 mah made by Atrax) but haven't had a chance to format it yet so as to start new tests.

regards

your battery contacts have just come loose, you can bend them in a little bit, should resolve the problem

there are various threads here on it, try power search for battery contact maybe

yupii following Your advice I found the thread:
http://talk.maemo.org/showthread.php?p=884140

after bending the contacts muy n900 works perfectly, no more sudden voltage drops